Berry's functions

Description

Draw horizontal histograms, color scattered points by 3rd dimension, enhance date- and log-axis plots, zoom in X11 graphics, trace errors and warnings, use the unit hydrograph in a linear storage cascade, convert lists to data.frames and arrays, fit multiple functions.

Note

Collection of functions, mainly connected with graphics and hydrology.
- zoom in X11 graphics
- plot rainfall-runoff data and optimize parameters for the unit hydrograph in the linear storage cascade
- write text to plots on top of colored fields in label size (halo-effect)
- draw scatterplots colored by 3rd dimension (as in image, which only deals with grids)
- draw histograms horizontally
- advancedly label date axes and logarithmic axes
- fit multiple functions (power, reciprocal, exponential, logarithmic, polynomial, rational) by regression
- convert lists to data.frames
- and more...

At some places you'll find ## not run in the examples. These code blocks were excluded from checking while building, mainly because they are interactive and need mouseclicks, or because they open another device/file. Normally, you should be able to run them in an interactive session. If you do find non-executable code, please tell me!
Feel free to suggest packages in which these functions would fit well.
I strongly depend on - and therefore welcome - any feedback!

Author(s)

Maintainer: Berry Boessenkool berry-b@gmx.de

Berry Boessenkool, berry-b@gmx.de, 2011-2017

See Also

Useful links:

• https://github.com/brry/berryFunctions

• Report bugs at https://github.com/brry/berryFunctions/issues

Examples

# see vignette("berryFunctions")

Test logical expressions

Description

Check if logical expressions return what you expect with a truth table

Usage

TFtest(..., na = TRUE)

Arguments

Details

This is a nice way to check operator precedence, see Syntax

Value

Truth table as data.frame with TRUE and FALSE (and NA) combinations

Author(s)

Berry Boessenkool, berry-b@gmx.de, Mrz 2016

See Also

logical

Examples

TFtest(!a & !b)
TFtest(!a & !b, a&b, !(a&b))
TFtest(!a & !b | c)
TFtest(!a & !b | c, na=FALSE)
TFtest(!a)
TFtest(a&b|c, (a&b)|c, a&(b|c), na=FALSE) # AND has precedence over OR
TFtest(a|b, xor(a,b), na=FALSE)

Color transparency

Description

Make existing colors semi-transparent (add alpha)

Usage

addAlpha(col, alpha = 0.3)

Arguments

Value

character vector with hexadecimal color codes.

Author(s)

Berry Boessenkool, berry-b@gmx.de, June 2014 Based on suggestion by Mathias Seibert, Dec. 2013

See Also

addFade , rgb , colors , col2rgb

Examples

addAlpha("red", c(0.1, 0.3, 0.6, 1))
addAlpha(1:3)
addAlpha(1:3, 1:3/3)
NewColors <- addAlpha(c("red","blue","yellow","green", "purple"), 0:200/200)
plot(runif(1000), col=NewColors, pch=16, cex=2)
# use addFade for line segments, because of overlapping dots
set.seed(1); x <- cumsum(rnorm(30)) ; y <- x-2
plot(x, type="n")
segments(x0=1:29,y0=head(x,-1), x1=2:30,y1=x[-1], col=addAlpha(4, 29:0/30), lwd=10)
segments(x0=1:29,y0=head(y,-1), x1=2:30,y1=y[-1], col=addFade (4, 29:0/30), lwd=10)

Color fade out

Description

Make existing colors fade away to white

Usage

addFade(col, fade = 0.3, target = "white", ...)

Arguments

Value

character matrix with hexadecimal color codes.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Feb 2016

See Also

addAlpha , colorRamp , colors

Examples

plot(1:11, pch=16, cex=3, col=addFade(2, 10:0/10))
plot(1:11, pch=16, cex=3, col=addFade(2, 10:0/10, target="blue"))
plot(1:11, pch=16, cex=3, col=addFade(2, 10:0/10, target=3:4))
plot(1:21, pch=16, cex=3, col=addFade(2:3, 10:0/10))
plot(1:21, pch=16, cex=3, col=addFade(2:3, 10:0/10, target=4:5))
NewColors <- addFade(c("red","blue","yellow","green", "purple"), 0:200/200)
plot(runif(1000), col=NewColors, pch=16, cex=2)

Add n rows to a data.frame

Description

simple Helper-Function to add n rows to a data.frame.

Usage

addRows(df, n, values = NA)

Arguments

Value

A data.frame

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2014

See Also

insertRows , sortDF , data.frame , matrix , rbind

Examples

MYDF <- data.frame(A=5:3, B=2:4)
addRows(MYDF, 3)

Vectorized testing for near-equality

Description

Vectorized testing for near-equality with all.equal . Since elements are recycled, this will not work for environments. You can use almost.equal directly in if expressions.

Usage

almost.equal(x, y, scale = 1, ...)

Arguments

Value

Logical vector

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2017

See Also

all.equal

Examples

# General usage:
x <- c(0.4-0.1, 0.5-0.2)
x
x==0.3 # FALSE TRUE # but mathematically, x is 0.3
all.equal(x, rep(0.3,2)) # TRUE
almost.equal(x,0.3) # TRUE TRUE # nice
y <- c(7777, 0.3)
 all.equal(x,y) # "Mean relative difference: 25922.33" Not what I want
almost.equal(x,y) # FALSE TRUE Exactly what I want
# Absolute vs relative comparison, https://stackoverflow.com/questions/57578257
 all.equal(6.2, 6.4, tolerance=0.04) # TRUE - unexpected!
almost.equal(6.2, 6.4, tolerance=0.04) # FALSE, thanks to default scale=1
almost.equal(6.2, 6.4, tolerance=0.04, scale=NULL) # as with all.equal
# Testing vectorization
almost.equal(1:6, 3)
almost.equal(1:6, NA)
almost.equal(1:6, NULL)
# Testing the function for different data types (in order of coercion):
almost.equal(c(TRUE,FALSE,NA), c(TRUE,FALSE,NA)) # logical
almost.equal(as.factor(letters), as.factor(letters)) # factor
 all.equal(1:6, 1:6)
almost.equal(1:6, 1:6) # integer numeric see above
0.4+0.4i - 0.1-0.1i == 0.3+0.3i
almost.equal(0.4+0.4i - 0.1-0.1i, 0.3+0.3i) # complex
 all.equal(letters, tolower(LETTERS))
almost.equal(letters, tolower(LETTERS)) # character
almost.equal(Sys.Date()+1:4,Sys.Date()+1:4) # Date
x <- Sys.time()+0:2
all.equal(x,x)
almost.equal(x,x) # POSIXt
A <- list(a=1:5, b=0.5-0.2)
B <- list(a=1:5, b=0.4-0.1)
 all.equal(A,B)
almost.equal(A,B) # list

open the Appendix of Rclick

Description

Open the Appendix of my R handbook found online at https://github.com/brry/rclick

Usage

anhang()

Value

None, opens pdf in default viewer using system2

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jul 2016

See Also

funSource

Examples

# anhang() # excluded from cran check because of external browser opening policy

Smart linear NA interpolation

Description

Smart interpolation: as approx , approx2 fills NAs in a vector with linear interpolation, but unlike approx , it can handle NAs at the ends of a vector (takes the first/last value available for those). Also, approx2 returns a vector only.

Usage

approx2(x, fill = NULL, n = length(x), quiet = FALSE, ...)

Arguments

Details

The function fill is used to fill missing values at the ends of the vector. It could be mean or median, for example, but must be a function that accepts na.rm=TRUE as an argument. The default (NULL) means to use the first (or last) observation available.

Value

Vector with NAs replaced with interpolation (not a list, as in approx !)

Author(s)

Berry Boessenkool, berry-b@gmx.de, July 2015

See Also

approx , zoo::na.locf, ciBand for usage example

Examples

approx2(c(NA,NA)) # yields a message
approx2(c(NA,NA, 6, 4, 8, 9, 3, 2, 1)) # fills with first non-NA value
approx2(c( 2,NA, 6, 4, 8, 9, 3, 2, 1)) # interpolates linearly
approx2(c( 2, 4, 6, 4, 8, 9,NA, 2,NA)) # linear, then last non-NA at end
approx2(c(NA,NA, 6, 4, 8, 9, 3, 2, 1))
approx2(c(NA,NA, 6, 4, 8, 9, 3, 2, 1), fill=median) # first median, then linear
approx2(c(NA,NA, 6, 4, 8, 9, 3, 2, 1), fill=mean)
approx2(c( 3, 4, 6, 4, 8, 9,NA, 2,NA))
approx2(c( 3, 4, 6, 4, 8, 9,NA, 2,NA), fill=median)
approx2(c( 3, 4, 6, 4, 8, 9,NA, 2,NA), fill=mean)
approx2(c(NA,NA, 6, 4, 8, 9, 3, 2, 1), n=17)
approx2(c( 2,NA, 6, 4, 8, 9, 3, 2, 1), n=17)
approx2(c( 2, 4, 6, 4, 8, 9,NA, 2,NA), n=17)

View values around an index

Description

View index rows of a data.frame with n surrounding rows

Usage

around(x, i, n1 = 2, n2 = n1, convert = is.logical(i))

Arguments

Value

Nothing, calls View

Author(s)

Berry Boessenkool, berry-b@gmx.de, Nov 2016

See Also

sortDF , View

Examples

## Not run: ## View should not be used in examples
myDF <- data.frame(A=1:30, B=cumsum(rnorm(30)))
myDF[c(5,7,23,29),1] <- NA
around(myDF, i=is.na(myDF$A))
around(myDF, i=c(11,19), n2=0)
## End(Not run)

Beta density plot

Description

Quick and nice plot of beta density distribution based on just alpha and beta

Usage

betaPlot(
 shape1 = 1.5,
 shape2 = 5,
 lines = NA,
 fill = rgb(0, 0.3, 0.8, 0.4),
 cumulative = TRUE,
 mar = c(2, 3, 3, 3),
 keeppar = FALSE,
 las = 1,
 main = paste("Beta density with\nalpha =", signif(shape1, 3), "and beta =",
 signif(shape2, 3)),
 ylim = lim0(y),
 xlim = 0:1,
 ylab = "",
 xlab = "",
 type = "l",
 lty = 1,
 col = par("fg"),
 ...
)

Arguments

Details

This function very quickly plots a beta distribution by just specifying alpha and beta.

Value

None. Used for plotting.

Author(s)

Berry Boessenkool, berry-b@gmx.de, July 2014

See Also

betaPlotComp , normPlot , dbeta , https://cran.r-project.org/package=denstrip, https://cran.r-project.org/view=Distributions

Examples

betaPlot()
betaPlot(2,1)
betaPlot(0.5, 2)
# beta distribution is often used for proportions or probabilities
# overview of parameters
# alpha = number of successes + 1. beta = number of failures + 1
betaPlotComp()
# a bigger: HDI (Highest Density Interval) further to the right (1)
# b bigger: HDI more to the left (0)
# both bigger: narrower HDI, stronger peak

Compare beta distributions

Description

Visually understand the effect of the beta distribution parameters

Usage

betaPlotComp(
 shape1 = c(0.5, 1:4, 10, 20),
 shape2 = shape1,
 cumulative = FALSE,
 cex = 0.8,
 las = 1,
 main = "",
 ylim = lim0(4),
 mar = rep(0, 4),
 oma = c(2, 2, 4.5, 2),
 mgp = c(3, 0.7, 0),
 keeppar = FALSE,
 textargs = NULL,
 ...
)

Arguments

Value

None. Used for plotting.

Note

Tries to find suitable subplot for axis labels. This works only for increasing parameter values.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec 2015

See Also

betaPlot

Examples

betaPlotComp()
betaPlotComp(oma=c(2,2,2,2), ylim=lim0(5.5), textargs=list(y=NA))
betaPlotComp(shape1=c(3,10,34), shape2=c(7,9,24))

Are values between a and b?

Description

Are values within a certain interval? Basically a wrapper for x >= a & x <= b to save repeating long x names twice.

Usage

between(x, a, b = a, incl = TRUE, aincl = incl, bincl = incl, quiet = FALSE)

Arguments

Value

Logical (boolean) vector with TRUE/FALSE values

Author(s)

Berry Boessenkool, berry-b@gmx.de, Aug 2017

See Also

findInterval

Examples

between(1:10, 4, 8)
between(1:10, 4:8) # range as vector
between(1:10, 8, 4) # warns about interval
data.frame( incl.T=between(1:10, 4, 8),
 incl.F=between(1:10, 4, 8, incl=FALSE),
 aincl.F=between(1:10, 4, 8, aincl=FALSE),
 bincl.F=between(1:10, 4, 8, bincl=FALSE) )

title

Description

description

Usage

bmap(x = 13.12, y = 52.37, zm = 14, prov = NULL, collapsebg = TRUE, ...)

Arguments

Value

ReturnValue

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec 2022

Examples

if(requireNamespace("leaflet", quietly=TRUE) && 
 requireNamespace("leaflet.extras", quietly=TRUE))
bmap()

customized pairs plot

Description

pairs plot with cor in the lower panel (can handle NAs), nice hist on the diagonal, nice scatterplot in the upper panel. Based on the examples in pairs.

Usage

bpairs(df, main = NULL, pch = 16, col = addAlpha("blue"), ...)

Arguments

Value

invisible NULL

Author(s)

Berry Boessenkool, berry-b@gmx.de, Feb 2025

See Also

graphics::pairs

Examples

bpairs(mtcars[,1:5])
mtcarsNAs <- mtcars[,1:5]
mtcarsNAs[2,3] <- NA
mtcarsNAs[2:8,4] <- NA
bpairs(mtcarsNAs)
bpairs(iris)

Categorical color palette

Description

Categorical color palette according to IwantHue as displayed on https://web.archive.org/web/20250122084330/https://rockcontent.com/blog/subtleties-of-color-different-types-of-data-require-different-color-schemes/

Usage

catPal(n = 12, set = 1, alpha = 1)

Arguments

Value

Character string vector with color names

Author(s)

Berry Boessenkool, berry-b@gmx.de, Apr 2019

See Also

showPal , seqPal , divPal

Examples

plot(rep(1,12), pch=16, cex=5, col=catPal(12), xaxt="n")
showPal()
plot(cumsum(rnorm(40)), type="l", col=catPal()[1], ylim=c(-10,10))
for(i in 2:6) lines(cumsum(rnorm(40)), col=catPal()[i])

check file existence

Description

check whether files exist and give a useful error/warning/message

Usage

checkFile(file, warnonly = FALSE, trace = TRUE, pwd = TRUE, nprint = 2)

Arguments

Value

TRUE/FALSE, invisibly

Author(s)

Berry Boessenkool, berry-b@gmx.de, May 2016

See Also

file.exists

Examples

is.error( checkFile("FileThatDoesntExist.txt") )
checkFile("FileThatDoesntExist.txt", warnonly=TRUE)
checkFile("FileThatDoesntExist.txt", warnonly=TRUE, trace=FALSE)
checkFile("./", warnonly=TRUE)
checkFile(c("./",".//"), warnonly=TRUE)
## Not run: ## Excluded from CRAN checks because of file creation
# Vectorized:
file.create("DummyFile2.txt")
checkFile("DummyFile2.txt/")
checkFile(paste0("DummyFile",1:3,".txt"), warnonly=TRUE)
is.error(checkFile(paste0("DummyFile",1:3,".txt") ), TRUE, TRUE)
file.remove("DummyFile2.txt")
is.error(compareFiles("dummy.nonexist", "dummy2.nonexist"), TRUE, TRUE)
is.error(checkFile("dummy.nonexist"), TRUE, TRUE)
## End(Not run)
dingo <- function(k="brute.nonexist", trace=TRUE)
 checkFile(k, warnonly=TRUE, trace=trace)
dingo()
dingo("dummy.nonexist")
upper <- function(h, ...) dingo(c(h, "dumbo.nonexist"), ...)
upper("dumbo2.nonexist")
upper(paste0("dumbo",2:8,".nonexist"))
upper(paste0("dumbo",2:8,".nonexist"), trace=FALSE)

polygon confidence bands

Description

polygon for confidence interval bands, can handle NA's well

Usage

ciBand(
 yu,
 yl,
 ym = NULL,
 x = 1:length(yu),
 na = "interpolate",
 nastars = TRUE,
 singlepoints = TRUE,
 args = NULL,
 add = FALSE,
 lwd = 1,
 colm = "green3",
 colb = addAlpha(colm),
 border = NA,
 las = 1,
 ylim = range(yu, yl, finite = TRUE),
 ...
)

Arguments

Value

None, currently. Used for drawing.

Author(s)

Berry Boessenkool, berry-b@gmx.de, July 2015

See Also

quantileBands , polygon , approx2

Examples

y1 <- c(1,3,4,2,1,4,6,8,7)
y2 <- c(5,6,5,6,9,8,8,9,10)
y3 <- c(4,4,5,4,4,6,7,8,9)
ciBand(yl=y1, yu=y2, ym=y3)
y1[6:7] <- NA
ciBand(yl=y1, yu=y2, ym=y3) # interpolation marked with stars if nastars=TRUE
ciBand(yl=y1, yu=y2, ym=y3, na="remove")
lines(y1, col=3, type="o")
lines(y2, col=3, type="o")
y2[1] <- NA
ciBand(yl=y1, yu=y2, ym=y3) # next observation carried backwards (NAs at begin)
# LOCF (last observation carried forwards if NAs at end)
# See ?approx2 for median/mean imputation in these cases
ciBand(yl=y1, yu=y2, ym=y3, na="remove")
y2[9] <- NA
ciBand(yl=y1, yu=y2, ym=y3)
ciBand(yl=y1, yu=y2, ym=y3, na="remove") # NAs at both ends
y2[1] <- 5
ciBand(yl=y1, yu=y2, ym=y3)
ciBand(yl=y1, yu=y2, ym=y3, na="remove") # NA only at end
# Actual usefull stuff: sample size dependency of max and mean
ssdep_max <- function(n) quantile( replicate(n=200, expr=max(rnorm(n)) ) )
ssdep_mean<- function(n) quantile( replicate(n=200,expr=mean(rnorm(n)) ) )
x <- 1:100
res_max <- sapply(x, ssdep_max)
res_mean <- sapply(x, ssdep_mean)
ciBand(yl=res_max[2,], yu=res_max[4,], ym=res_max[3,], x=x, ylim=c(-0.5, 3))
ciBand(res_mean[2,], res_mean[4,], res_mean[3,], x=x, add=TRUE, colm="purple")

Draw circle with a given radius

Description

Draws a filled circle with a certain radius (in existing plot's units) using polygon and sin

Usage

circle(x, y, r, locnum = 100, ...)

Arguments

Value

data.frame of coordinates, invisible

Note

If circles look like ellipsis, use plot(... asp=1)

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2012

See Also

symbols , polygon

Examples

plot(1:20, type="n", asp=1)
circle(5,5, r=3) # 1:1 aspect shows they're really circles and not ellipses.
circle(15,10, r=4, locnum=12, col=2, border=4, lwd=3)
# can not be vectorized:
x <- sample(1:20, 15) ; y <- sample(1:20, 15) ; r <- runif(20)*3
circle(x,y,r, col=rgb(1,0.5,0,alpha=0.4), border=NA)
for(i in 1:15) circle(x[i],y[i],r[i], col=rgb(1,0.5,0,alpha=0.4), border=NA)

Classification into groups

Description

classify continuous values into categories with different methods:
- linearly or logarithmically spaced equal intervals,
- intervals based on quantiles (equally filled bins),
- intervals based on distance from the mean in normal distributions,
- user specified class borders (e.g. for legal or critical limits).

Usage

classify(
 x,
 method = "linear",
 breaks = NULL,
 Range = range(x, finite = TRUE),
 col = NULL,
 sdlab = 1,
 logbase = 1,
 quiet = FALSE,
 ...
)

Arguments

Details

Binning methods are explained very nicely in the link in the section References.
nbins indicates the number of classes (and thus, colors).

The default is set to equalinterval which makes sense for my original intent of plotting lake depth (bathymetry measured at irregularly distributed points) on a linear color scale.
This is the workhorse for colPoints .

Value

if col=NULL, a list with class numbers (index) and other elements for colPoints . If col is a palette function, a vector of colors.

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2014

References

See this page on the effect of classification (binning) methods:
https://archive.ph/EL9Vq

See Also

colPoints

Examples

classify( c(1:10, 20), "lin", breaks=12)
classify( c(1:10, 20), "q", breaks=0:10/10)
classify( c(1:10, 20), "s", sdlab=2 )
classify( c(1:10, 20), "s", sdlab=1, breaks=2 )
classify( c(1:10, 20), "c", breaks=c(5,27) )
classify( c(1:10, 20), "log")
cols <- classify( c(1:10, 20), col=seqPal) ; cols
plot(c(1:10, 20), col=cols, pch=16, cex=2)
set.seed(42); rz <- rnorm(30, mean=350, sd=120)
plot(1)
classleg <- function(method="linear", breaks=100, sdlab=1, logbase=1, ...)
 do.call(colPointsLegend, owa(
 classify(rz, method=method, breaks=breaks, sdlab=sdlab, logbase=logbase),
 list(z=rz, title="", ...)) )
classleg(br=3, met="s", col=divPal(5),mar=c(0,3,1,0),hor=FALSE,x1=0.1,x2=0.25)
classleg(br=3, met="s", col=divPal(6),mar=c(0,3,1,0),hor=FALSE,x1=0.25,x2=0.4, sdlab=2)
classleg(y1=0.85, y2=1)
classleg(br=20, met="log", y1=0.70, y2=0.85)
classleg(br=20, met="log", y1=0.55, y2=0.70, logbase=1.15)
classleg(br=20, met="log", y1=0.45, y2=0.60, logbase=0.90)
classleg(br= 5, met="q", y1=0.30, y2=0.45)# quantiles: each color is equally often used
classleg(met="q", y1=0.15, y2=0.30, breaks=0:15/15, at=pretty2(rz), labels=pretty2(rz) )

climate graph after Walter and Lieth

Description

Draw a climate diagram by the standards of Walter and Lieth.

Usage

climateGraph(temp, rain,
 main = "StatName\n52\U{00B0}24' N / 12\U{00B0}58' E\n42 m aSL",
 units = c("\U{00B0}C", "mm"), labs = substr(month.abb, 1, 1), 
 textprop = 0.25, ylim = range(temp, rain/2), compress = FALSE,
 ticklab = -8:30 * 10, ticklin = -15:60 * 5, box = TRUE,
 mar = c(1.5, 2.3, 4.5, 0.2), keeppar = TRUE, colrain = "blue",
 coltemp = "red", lwd = 2, arghumi = NULL, argarid = NULL,
 argcomp = NULL, arggrid = NULL, argtext = NULL, ...)

Arguments

Value

None. Plots data and table.

Author(s)

Berry Boessenkool, berry-b@gmx.de, June 2013

References

Heinrich Walter, Helmut Lieth: Klimadiagramm-Weltatlas. Gustav Fischer Verlag, Jena 1967

See Also

diagwl in package climatol

Examples

temp <- c(-9.3,-8.2,-2.8,6.3,13.4,16.8,18.4,17,11.7,5.6,-1,-5.9)#
rain <- c(46,46,36,30,31,21,26,57,76,85,59,46)
climateGraph(temp, rain)
climateGraph(temp, rain, textprop=0.6)
climateGraph(temp, rain, mar=c(2,3,4,3), textprop=0) # no table written to the right
# vertical lines instead of filled polygon:
climateGraph(temp, rain, arghumi=list(density=15, angle=90))
# fill color for arid without transparency:
climateGraph(temp, rain, argarid=list(col="gold"))
# for the Americans - axes should be different, though!:
climateGraph(temp, rain, units=c("\U{00B0}F","in"))
rain2 <- c(23, 11, 4, 2, 10, 53, 40, 15, 21, 25, 29, 22)
# fix ylim if you want to compare diagrams of different stations:
climateGraph(temp, rain2, ylim=c(-15, 50)) # works with two arid phases as well
op <- par(mfrow=c(2,1)) # mulipanel plot
climateGraph(temp, rain, argtext=list(cex=0.7))
climateGraph(temp, rain2, argtext=list(cex=0.7))
par(op)
rain <- c(54, 23, 5, 2, 5, 70, 181, 345, 265, 145, 105, 80) # with extrema
climateGraph(temp, rain) # August can be visually compared to June
climateGraph(temp, rain, compress=TRUE)
# compressing extrema enables a better view of the temperature,
# but heigths of rain cannot be visually compared anymore
climateGraph(temp, rain, compress=TRUE, ylim=c(-10, 90))
# needs ylim in linearly continued temp units
climateGraph(temp, rain, compress=TRUE, argcomp=list(density=30, col="green"))
# example with (fake) weekly relative soil moisture (RSM) added:
temp <- c(-9.3,-8.2,-2.8,6.3,13.4,16.8,18.4,17,11.7,5.6,-1,-5.9)
rain <- c(46,46,36,30,31,21,26,57,76,85,59,46)
set.seed(3)
soil <- berryFunctions::rescale( cumsum(rnorm(52)), from=1, to=100)
xsoil <- seq(1, 12, length.out=52)
climateGraph(temp, rain, ylim=c(-10, 50) ) # ylim for RSM 0:100 on second axis
lines(xsoil, soil/2, lwd=5, col="orange")
mtext(paste("Relative\nsoil moisture\n\U00D8", round(mean(soil), 1), "%"), 
 side=3, col="orange", line=1, adj=0.99)
## Not run: 
pdf("ClimateGraph.pdf")
climateGraph(temp, rain, main="Another Station\nlocated somewhere else")
dev.off()
openFile("ClimateGraph.pdf")
unlink("ClimateGraph.pdf")
# further German reading:
browseURL("https://www.klimadiagramme.de/all.html")
# Climate Graphs for the USA:
NOOAlink <- "https://www1.ncdc.noaa.gov/pub/data/normals/1981-2010/"
browseURL(NOOAlink)
# Find your Station here:
browseURL(paste0(NOOAlink,"/station-inventories/allstations.txt"))
# Data from Roseburg, Oregon:
download.file(destfile="Roseburg.txt", url=paste0("https://www1.ncdc.noaa.gov/",
 "pub/data/normals/1981-2010/products/station/USC00357331.normals.txt"))
RT <- read.table(file="Roseburg.txt", skip=11, nrows=1, as.is=TRUE)[1,-1]
RT <- ( as.numeric(substr(RT,1,3))/10 - 32) * 5/9 # converted to degrees C
RP <- read.table(file="Roseburg.txt", skip=580, nrows=1, as.is=TRUE)[1,-1]
RP <- as.numeric(substr(RP,1,nchar(RP)-1))/100*25.4
meta <- read.table(file="Roseburg.txt", nrows=5, as.is=TRUE, sep=":")
meta <- paste(meta[1,2], paste(meta[3:4 ,2], collapse=" /"), meta[5,2], sep="\n")
unlink("Roseburg.txt")
climateGraph(RT, RP, main=meta)
climateGraph(RT, RP, main=meta, compress=TRUE)
# Climate Graphs for Germany:
browseURL("https://github.com/brry/rdwd#rdwd")
link <- rdwd::selectDWD("Potsdam", res="monthly", var="kl", per="h")
file <- rdwd::dataDWD(link, dir=tempdir(), read=FALSE)
clim <- rdwd::readDWD(file)
rdwd::readVars(file)
temp <- tapply(clim$MO_TT, INDEX=format(clim$MESS_DATUM, "%m"), FUN=mean, na.rm=FALSE)
precsums <- tapply(clim$MO_RR, INDEX=format(clim$MESS_DATUM, "%Y-%m"), FUN=sum)
eachmonth <- format(strptime(paste(names(precsums),"01"), "%Y-%m %d"),"%m")
prec <- tapply(precsums, eachmonth, FUN=mean, na.rm=TRUE)
meta <- paste("Potsdam\n", paste(range(clim$MESS_DATUM, na.rm=TRUE), 
 collapse=" to "), "\n", sep="")
climateGraph(temp, prec, main=meta, ylim=c(-2, 45))
# Add Quartiles (as in boxplots): numerically sorted, 50% of the data lie inbetween
TQ <- tapply(clim$MO_TT, INDEX=format(clim$MESS_DATUM, "%m"), FUN=quantile)
TQ <- sapply(TQ, I)
arrows(x0=1:12, y0=TQ["25%",], y1=TQ["75%",], angle=90, code=3, col=2, len=0.1)
#
PQ <- tapply(precsums, eachmonth, FUN=quantile, na.rm=TRUE)
PQ <- sapply(PQ, I)
arrows(x0=1:12, y0=PQ["25%",]/2, y1=PQ["75%",]/2, angle=90, code=3, col=4, len=0, lwd=3, lend=1)
mtext("IQR shown als lines", col=8, at=6.5, line=0.7, cex=1.2, font=2)
# Comparison to diagram in climatol
# library2("climatol") # commented out to avoid dah error in dataStr testing
# data(datcli)
# diagwl(datcli,est="Example station",alt=100,per="1961-90",mlab="en")
## End(Not run)

Points colored relative to third dimension

Description

Draw colored points for 3D-data in a 2D-plane. Color is relative to third dimension, by different classification methods. Can take 3 vectors or, as in image , 2 vectors and a matrix for z.
Adding points after smallPlot is called for the legend may be incorrect if the original function messes with the graph margins, see the note in colPointsLegend .

Usage

colPoints(
 x,
 y,
 z,
 data,
 add = TRUE,
 col = seqPal(100),
 col2 = c(NA, "grey", "black"),
 Range = range(z, finite = TRUE),
 method = "linear",
 breaks = length(col),
 sdlab = 1,
 legend = TRUE,
 legargs = NULL,
 lines = FALSE,
 nint = 30,
 xlab = gsub("\"", "", deparse(substitute(x))),
 ylab = gsub("\"", "", deparse(substitute(y))),
 zlab = gsub("\"", "", deparse(substitute(z))),
 axes = TRUE,
 log = "",
 las = 1,
 bglines = NULL,
 pch = 16,
 x1 = 0.6,
 y1 = ifelse(horizontal, 0.88, 0.3),
 x2 = 0.99,
 y2 = 0.99,
 density = NULL,
 horizontal = TRUE,
 quiet = FALSE,
 ...
)

Arguments

Value

Invisible list of values that can be passed to colPointsLegend or colPointsHist.

Note

Rstudio scales graphics really badly, so don't expect the right legend width out of the box if you use Rstudio! Exporting via png("myplot.png", 600,400); colPoints(x,y,z); dev.off() usually works much better

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2011-2014. I'd be interested in hearing what you used the function for.

References

https://archive.ph/EL9Vq, https://www.theusrus.de/blog/the-good-the-bad-22012/

See Also

classify , colPointsLegend , colPointsHist

Examples

i <- c( 22, 40, 48, 60, 80, 70, 70, 63, 55, 48, 45, 40, 30, 32)
j <- c( 5, 10, 15, 20, 12, 30, 45, 40, 30, 36, 56, 33, 45, 23)
k <- c(175, 168, 163, 132, 120, 117, 110, 130, 131, 160, 105, 174, 190, 183)
# basic usage:
colPoints(i,j,k, cex=1.5, pch="+", add=FALSE)
# with custom Range:
colPoints(i,j,k, cex=1.5, pch="+", add=FALSE, Range=c(150,190), density=FALSE)
# can be used to allow comparison between several plots
# points outside the range are plotted with col2
# with custom colors:
mycols <- colorRampPalette(c("blue","yellow","red"))(50)
colPoints(i,j,k, cex=1.5, pch="+", add=FALSE, col=mycols)
# With legend title:
colPoints(i,j,k, cex=2, add=FALSE, zlab="Elevation [m above NN.]",
 legargs=list(density=FALSE))
?colPointsLegend # to see which arguments can be set via legargs
# colPoints with matrix:
colPoints(z=volcano, add=FALSE)
# image and contour by default transpose and reverse the matrix!
# colPoints shows what is really in the data.
# add single newly measured points to image (fictional data):
mx <- c( 22, 40, 45, 30, 30, 10)
my <- c( 5, 33, 56, 70, 45, 45)
mz <- c(110, 184, 127, 133, 170, 114)
colPoints(mx,my,mz, cex=5, pch="*", Range=c(94, 195), col=seqPal(), col2=NA, legend=FALSE)
points(mx,my, cex=4)
text(mx,my,mz, adj=-0.5, font=2)
# with logarithmic color scale:
shp <- seq(0.2,3, by=0.1)
scl <- seq(0.2,3, by=0.1)
wsim <- sapply(shp, function(h) sapply(scl, function(c) mean(rweibull(1e3, shape=h, scale=c))))
colPoints(shp, scl, (wsim), add=FALSE, asp=1)
colPoints(shp, scl, (wsim), add=FALSE, asp=1, method="log")
# with lines (nint to change number of linear interpolation points):
colPoints(i,j,k, cex=1.5, add=FALSE, lines=TRUE, nint=10, lwd=2)
# With NAs separating lines:
tfile <- system.file("extdata/rivers.txt", package="berryFunctions")
rivers <- read.table(tfile, header=TRUE, dec=",")
colPoints(x,y,n, data=rivers, add=FALSE, lines=TRUE)
colPoints(x,y,n, data=rivers, add=FALSE, lines=TRUE, pch=3, lwd=3)
colPoints(x,y,n, data=rivers, add=FALSE, lines=TRUE, pch=3, lwd=3, nint=2)
colPoints("x","y","n", data=rivers, add=FALSE)
# different classification methods:
# see ?classify
colPoints(i,j,k, add=FALSE) # use classify separately:
text(i,j+1,k, col=divPal(100,rev=TRUE)[classify(k)$index], cex=1)
# Add histogram:
cp <- colPoints(i,j,k, add=FALSE)
do.call(colPointsHist, cp[c("z","at","labels","bb","nbins")])
do.call(colPointsHist, owa(cp[c("z","at","labels","bb","nbins")],
 list(bg=5, breaks=5)))
do.call(colPointsHist, owa(cp[c("z","at","labels","bb","nbins")],
 list(mar=c(0,0,0,0), x1=0.5, x2=1, y1=0.8,
 y2=0.99, yaxt="n")))
# histogram in lower panel:
layout(matrix(1:2), heights=c(8,4) )
colPoints(i,j,k, add=FALSE, y1=0.8, y2=1)
colPointsHist(z=k, x1=0.05, x2=1, y1=0, y2=0.4, mar=3, outer=TRUE)
layout(1)
# Customizing the legend :
cp <- colPoints(i,j,k, legend=FALSE, add=FALSE)
colPointsLegend(x1=0.2, x2=0.95, y1=0.50, y2=0.40, z=k, labelpos=5, atminmax=TRUE, bg=7)
colPointsLegend(x1=0.5, x2=0.90, y1=0.28, y2=0.18, z=k, Range=c(80, 200), nbins=12, font=3)
colPointsLegend(x1=0.1, x2=0.40, y1=0.15, y2=0.05, z=k, labelpos=5, lines=FALSE, title="")
colPointsLegend(z=k, horizontal=FALSE)
colPointsLegend(x1=0.01, y2=0.80, z=k, horizontal=FALSE, labelpos=4, cex=1.2)
colPointsLegend(x1=0.23, y2=0.95, z=k, horizontal=FALSE, labelpos=5, cex=0.8,
 dens=FALSE, title="", at=c(130,150,170), labels=c("y","rr","Be"), lines=FALSE)
# For method other than colPoints' default, it is easiest to include these
# options as a list in legargs, but you can also use the invisible output
# from colPoints for later calls to colPointsLegend
do.call(colPointsLegend, cp)
do.call(colPointsLegend, owa(cp, list(colors=divPal(100), cex=1.2)))
# santiago.begueria.es/2010/10/generating-spatially-correlated-random-fields-with-r
if(require(gstat)){
xyz <- gstat(formula=z~1, locations=~x+y, dummy=TRUE, beta=1,
 model=vgm(psill=0.025,model="Exp",range=5), nmax=20)
xyz <- predict(xyz, newdata=data.frame(x=runif(200, 20,40),y=runif(200, 50,70)), nsim=1)
head(xyz)
colPoints(x,y,sim1, data=xyz, add=FALSE)
}

Histogram for colPoints

Description

Adds Histogram to plots created or enhanced with colPoints

Usage

colPointsHist(
 z,
 nbins = 40,
 colors = seqPal(nbins),
 bb = seqR(z, length.out = nbins + 1),
 at = pretty2(z),
 labels = at,
 bg = "white",
 x1 = 0,
 x2 = 0.4,
 y1 = 0,
 y2 = 0.3,
 outer = FALSE,
 mar = c(2, 2, 1, 0.5),
 mgp = c(1.8, 0.6, 0),
 sborder = NA,
 resetfocus = TRUE,
 breaks = 20,
 freq = TRUE,
 col = par("fg"),
 border = NA,
 main = "",
 ylab = "",
 xlab = "",
 las = 1,
 axes = TRUE,
 ...
)

Arguments

Value

invisible list of par of smallPlot, adds histogram to current plot

Author(s)

Berry Boessenkool, berry-b@gmx.de, Aug 2014

See Also

colPointsLegend and colPoints for real life examples

Examples

z <- rnorm(50)
plot(1:10)
colPointsHist(z=z)

Legend for colPoints

Description

Adds legends to plots created or enhanced with colPoints .
sf plots set par(mar=c(0,0,1.2,0)) but then reset it to the values before. smallPlot will hence also reset to that, so points added after calling colpointsLegend will be wrong, unless the margins are set BEFORE sf plot. sf:::plot.sf alternatively uses c(2.1, 2.1, 1.2, 0) or c(1, 1, 1.2, 1).

Usage

colPointsLegend(
 z,
 Range = range(z, finite = TRUE),
 nbins = 100,
 colors = seqPal(nbins),
 bb = seqR(Range, length.out = nbins + 1),
 nlab = 5,
 at = pretty2(Range, nlab),
 labels = at,
 atgrey = NULL,
 adj = 0.5,
 x1 = 0.6,
 y1 = 0.88,
 x2 = 0.99,
 y2 = 0.99,
 outer = FALSE,
 xpd = NA,
 mar,
 mgp = c(1.8, 0.6, 0),
 bg = par("bg"),
 sborder = NA,
 resetfocus = TRUE,
 plottriangle = FALSE,
 triangle = 0.14,
 tricol = c(8, 1),
 density = NULL,
 lines = TRUE,
 atminmax = FALSE,
 horizontal = TRUE,
 labelpos = 1,
 titlepos = 3,
 title = "Legend",
 las = 1,
 x,
 y,
 index,
 above,
 below,
 ...
)

Arguments

Value

invisible list of par of smallPlot , adds legend bar to current plot

Note

x1,x2,y1,y2,labelpos,titlepos,title have different defaults when horizontal=FALSE

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2012-2014

See Also

colPointsHist , colPoints for real life example

Examples

z <- rnorm(50)
plot(1:10)
colPointsLegend(z=z)
colPointsLegend(z=z, titlepos=2)
colPointsLegend(z=z, horiz=FALSE) # note the different defaults
# positioning relative to plot:
colPointsLegend(z=z, x1=0.05, x2=0.3, y1=0.7,y2=0.9, title="Booh!", density=FALSE)
# Denote values outside of Range wit a triangle:
colPointsLegend(z=z, Range=c(-1,3), x1=0.2, y1=0.4, y2=0.6, triangle=0.2)
colPointsLegend(z=z, horiz=FALSE, x1=0.7, y1=0.6, plottriangle=TRUE, density=FALSE)
?colPoints # example section for actual usage

Combine Textfiles into one

Description

Combine several textfiles into one, regardless of their content.

Usage

combineFiles(
 inFiles = dir(),
 outFile = "combined_Textfiles.txt",
 overwrite = FALSE,
 sep = NULL,
 names = TRUE,
 selection = NULL,
 progbar = !quiet,
 quiet = FALSE,
 ...
)

Arguments

Value

Final output file, invisibly.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Nov 2012, Dec 2014, Jul 2015

See Also

compareFiles , and the functions used internally here, namely: paste , scan , write .

Examples

## These are skipped by rcmd check (writing to external places is not allowed)
## Not run: 
cat("This is Sparta.\nKicking your face.", file="BujakashaBerry1.txt")
cat("Chuck Norris will roundhousekick you.", file="BujakashaBerry2.txt")
combineFiles(inFiles=paste0("BujakashaBerry", 1:2, ".txt"),
 outFile="BujakashaBerry3.txt")
file.show("BujakashaBerry3.txt")
unlink(paste0("BujakashaBerry", 1:3, ".txt"))
## End(Not run)

compare distributions

Description

compare multiple distributions. All based on columns in a data.frame. Creates several plots based on the integers present in plot.

Usage

compareDist(
 df,
 plot = 1:4,
 bw = "SJ",
 col = catPal(ncol(df), alpha = 0.3),
 main = paste("Distributions of", deparse(substitute(df))),
 xlab = "Values",
 ylab = "Density",
 legpos1 = "topleft",
 legpos2 = NULL,
 horizontal = FALSE,
 ...
)

Arguments

Value

df, invisible

Author(s)

Berry Boessenkool, berry-b@gmx.de, Aug 2020

See Also

groupHist

Examples

fakedata <- data.frame(norm=rnorm(30), exp=rexp(30), unif=runif(30))
compareDist(fakedata)

Compare textfiles for equality

Description

Returns the line numbers where two (text)files differ

Usage

compareFiles(
 file1,
 file2,
 nr = 20,
 startline = 1,
 endline = length(f1),
 quiet = FALSE,
 ...
)

Arguments

Value

Vector of line numbers that differ, result from head(..., nr)

Author(s)

Berry Boessenkool, berry-b@gmx.de, Aug 2014

See Also

https://text-compare.com/ which I sadly only discovered after writing this function, dupes for finding duplicate lines, combineFiles

Examples

filenames <- system.file(paste0("extdata/versuch",1:2,".txt"), package="berryFunctions")
compareFiles(filenames[1], filenames[2], warn=FALSE)

Convert German Umlaute to ASCII

Description

Convert German Umlaute (ae, oe, ue, ss) to ASCII. Conversion happens case sensitive for the first three.

Usage

convertUmlaut(x)

Arguments

Value

Character strings

Author(s)

Berry Boessenkool, berry-b@gmx.de, Oct-Nov 2016

See Also

tools::showNonASCII , gsub , iconv(x, to="ASCII//TRANSLIT")

Examples

## Not run: 
link <- paste0("ftp://ftp-cdc.dwd.de/pub/CDC/observations_germany/climate/",
 "monthly/kl/recent/KL_Monatswerte_Beschreibung_Stationen.txt")
weatherstations <- read.fwf(link, widths=c(6,9,10,16,11,8,41,99), skip=3)
examples <- trimws(weatherstations[c(153, 509, 587, 2, 651, 851),7])
examples
convertUmlaut(examples) # note how lower and upper case is kept
## End(Not run)

count string occurrences

Description

count how often a certain string occurs, summing over a vector

Usage

count(pattern, x, ...)

Arguments

Value

single integer

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2025

Examples

vec210 <- c("with abc + abc + ab", "also abcde", "no alphabet")
vec021 <- c("no alphabet", "this has abcabc + ab", "also abcde")
vec000 <- c("this has no", "alphabet", "at all")
vec4 <- "this has abc and abcabcabc"
stopifnot(count("abc", vec210) == 3)
stopifnot(count("abc", vec021) == 3)
stopifnot(count("abc", vec000) == 0)
stopifnot(count("abc", vec4 ) == 4)
# vectorized count:
vec <- c(a="xx", b="xabx", c="xabxab", d="abxx", e="abxxabxxabxxab", f="axbx")
sapply(gregexpr("ab", vec), function(x) sum(x>0))

create function framework

Description

create a file with a complete (Roxygen) framework for a new function in a package

Usage

createFun(fun, path = ".", open = TRUE)

Arguments

Details

Tries to open the file in the standard editor for .R files using system2

Value

file name as character string

Author(s)

Berry Boessenkool, berry-b@gmx.de, March 2016

See Also

system2 , funSource , Roxygen2: https://cran.r-project.org/package=roxygen2/vignettes/rd.html

Examples

#createFun("myNewFunction")

Create .Rnw presentation template

Description

Create folder with .Rnw presentation template and fig_extern folder.

Usage

createPres(
 presname = "pres",
 dir = "presentation",
 path = ".",
 asp = 169,
 navbullets = FALSE,
 bgblack = FALSE,
 open = TRUE
)

Arguments

Author(s)

Berry Boessenkool, berry-b@gmx.de, Mar 2017

See Also

createFun

Examples

## Not run: 
createPres("Berry_Conference")
## End(Not run)

str of datasets

Description

Print the str of each dataset returned by data

Usage

dataStr(
 heads = FALSE,
 only = NULL,
 msg = heads,
 package = NULL,
 view = TRUE,
 ...
)

Arguments

Value

invisible data.frame. If msg=TRUE, prints via message in a for loop.

Author(s)

Berry Boessenkool, berry-b@gmx.de, November 2015, in search of good datasets for teaching

See Also

str , https://vincentarelbundock.github.io/Rdatasets/

Examples

## Not run: ## View should not be used in examples
dataStr() # all loaded packages on search path (package=NULL)
# dataStr(package="datasets") # only datasets in base R package datasets
dataStr(only=TRUE) # sorted by nrow / ncol
d <- dataStr(only="data.frame") # data.frames only
sort(sapply(d$Object, function(dd) {sum(is.na(get(dd)))})) # datasets with NAs
head(d)
if(interactive()) View(d) # to sort in Rstudio Viewer
d[,c("Object","ncol","nrow")]
dataStr(heads=TRUE) # heads of all data.frames
# dataStr(package="hms") # no datasets in package
## End(Not run)

Distance between points

Description

Calculate distance between points on planar surface

Usage

distance(x, y, xref, yref, along = FALSE)

Arguments

Details

The function is quite simple: sqrt((xref - x)^2 + (yref - y)^2)

Value

vector with the distances

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2012

See Also

nndist in the package spatstat.geom for distance to nearest neighbour

Examples

A <- c(3, 9,-1)
B <- c(7, -2, 4)
plot(A,B)
text(A,B, paste0("P",1:3), adj=1.1)
points(3,5, col=2, pch=16)
segments(3,5, A,B)
distance(A,B, 3,5)
text(c(3.2,6,1), c(6,1,4), round(distance(A,B, 3,5),2) )

Diverging color palette

Description

Diverging color palette: brown to blue, light colors in the middle, darker at the extremes, good for displaying values in two directions

Usage

divPal(
 n = 100,
 reverse = FALSE,
 alpha = 1,
 rwb = FALSE,
 ryb = FALSE,
 gp = FALSE,
 br = FALSE,
 colors = NULL,
 ...
)

Arguments

Value

Character string vector with color names

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2016

References

The default palette is originally in 12 shades in the IPCC Assessment Report 5 Chapter 12 Fig 12.22, https://www.ipcc.ch/report/ar5/wg1/.
The green-purple and blue-red palettes are from NYtimes (originally with 8 shades), https://www.nytimes.com/interactive/2017/03/21/climate/how-americans-think-about-climate-change-in-six-maps.html

See Also

showPal , seqPal , catPal , addAlpha , colorRampPalette , package RColorBrewer

Examples

plot(rep(1,12), pch=16, cex=5, col=divPal(12), xaxt="n")
showPal()

Duplicate lines in file

Description

Number of duplicates per line of (text) file. Per default saved to file which can be loaded into excel / libreoffice. With conditional formatting of the first column, colors show for each line how often it occurs in the file. A LibreOffice file is included. Note: OpenOffice does not provide color scales based on cell values.

Usage

dupes(
 file,
 ignore.empty = TRUE,
 ignore.space = TRUE,
 tofile = missing(n),
 n = length(d)
)

Arguments

Value

Either: a data.frame with line numbers of duplicate rows and the number of duplicates
Or: a file is written with the number of duplicates and the original file content.

Note

This has not been tested all that much - feedback is heavily welcome!

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec 2014

See Also

compareFiles

Examples

file <- system.file("extdata/doublelines.txt", package="berryFunctions")
dupes(file, tofile=FALSE)
dupes(file, tofile=FALSE, ignore.empty=TRUE)
## These are skipped by rcmd check (opening external places is not allowed):
## Not run: dupes(file)
# a template file (dupes.ods) for libreOffice Calc is available here:
system.file("extdata", package="berryFunctions")
## Not run: system2("nautilus", system.file("extdata/dupes.ods", package="berryFunctions"))
# To open folders with system2:
# "nautilus" on linux ubuntu
# "open" or "dolphin" on mac
# "explorer" or "start" on windows

4-parametric exponential function

Description

Fits an exponential function of the form a*e^(b*(x+c))+d

Usage

exp4p(x, y, digits = 2, plot = FALSE, las = 1, col = 1:6, legarg = NULL, ...)

Arguments

Details

This is mainly a building block for mReg

Value

Data.frame with the 4 parameters for each optim method

Note

Optim can be slow! It refers to the functions rmse and rsquare, also in this package. L-BFGS-B needs finite values. In case it doesn't get any with the initial parameters (as in the first example Dataset), it tries again with the parameters optimized via Nelder Mead.

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2012-2013, outsourced from mReg in July 2014

See Also

mReg , lm

Examples

## Not run: ## Skip time consuming checks on CRAN
# exponential decline of temperature of a mug of hot chocolate
tfile <- system.file("extdata/Temp.txt", package="berryFunctions")
temp <- read.table(tfile, header=TRUE, dec=",")
head(temp)
plot(temp)
temp <- temp[-20,] # missing value - rmse would complain about it
x <- temp$Minuten
y <- temp$Temp
rm(tfile, temp)
exp4p(x,y, plot=TRUE)
# y=49*e^(-0.031*(x - 0 )) + 25 correct, judged from the model:
# Temp=T0 - Te *exp(k*t) + Te with T0=73.76, Tend=26.21, k=-0.031
# optmethod="Nelder-Mead" # y=52*e^(-0.031*(x + 3.4)) + 26 wrong
## End(Not run)

Exponential regression with plotting

Description

uses lm ; plots data if add=FALSE, draws the regression line with abline and confidence interval with polygon and writes the formula with legend

Usage

expReg(
 x,
 y = NULL,
 data = NULL,
 logy = TRUE,
 predictnew = NULL,
 interval = "confidence",
 plot = TRUE,
 digits = 2,
 inset = 0,
 xpd = par("xpd"),
 pos1 = "top",
 pos2 = NULL,
 add = FALSE,
 pch = 16,
 col = rgb(0, 0, 0, 0.5),
 modcol = 2,
 lwd = 1,
 xlab = deparse(substitute(x)),
 ylab = deparse(substitute(y)),
 main = "exponential regression",
 xlim = range(x),
 ylim = range(y),
 ...
)

Arguments

Value

predict.lm result.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec. 2014

See Also

lm , mReg , linReg .

Examples

x <- runif(100, 1, 10)
y <- 10^(0.3*x+rnorm(100, sd=0.3)+4)
plot(x,y)
expReg(x,y)
expReg(x,y, logy=FALSE)
expReg(x,y, predictnew=6, plot=FALSE)
expReg(x,y, predictnew=3:6, interval="none", plot=FALSE)

Source code of a function

Description

open source code of a function in a loaded or specified package on github.com/cran or github.com/wch/r-source

Usage

funSource(x, character.only = is.character(x), local = FALSE)

Arguments

Value

links that are also opened with browseURL

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan+Dec 2016, May 2017, April 2019

See Also

https://github.com/brry/rskey#rskey to add this as a keyboard shortcut

Examples

## Not run: ## browser windows should not be opened in CRAN checks
funSource("head")
funSource(message()) # handles brackets if fun can be evaluated without input
funSource("require", local=TRUE) # usefull when offline
funSource("OSMscale::earthDist") # works even for non-installed CRAN packages
is.error(funSource("earthDist"), TRUE, TRUE) # Error for unloaded package
require(plotrix); require(scales)
funSource(rescale) # from the last loaded package
tail <- function(...) stop("This is a dummy function. Type: rm(tail)")
funSource("tail")
rm(tail)
## End(Not run)

Funnel plots for proportional data

Description

Funnel plots for proportional data with confidence interval based on sample size. Introduced by Stephen Few, 2013

Usage

funnelPlot(
 x,
 n,
 labels = NULL,
 method = "classic",
 add = FALSE,
 xlim = range(n, finite = TRUE),
 ylim = range(x/n * 100, finite = TRUE),
 las = 1,
 xlab = "Sample size n",
 ylab = "Success rate [%]",
 main = "Funnel plot for Proportions",
 a3 = NULL,
 a2 = NULL,
 am = NULL,
 ap = NULL,
 at = NULL,
 al = NULL,
 ...
)

Arguments

Value

Nothing - the function just plots

The basic idea

Salesman A (new to the job) has had 3 customers and sold 1 car. So his success rate is 0.33. Salesman B sold 1372 customers 632 cars, thus having a success rate of 0.46 Promoting B solely because of the higher rate fails to take experience and opportunity (n) into account! This dilemma is what the funnel plot with the confidence interval (ci) solves. See Stephen Few and Katherine Rowel's PDF for details on the interpretation.

Note

the default for lty is not taken from par("lty"). This would yield "solid". Overwriting lty for one of the three line categories then produces eg c("2", "solid", "solid"), which cannot be processed by legend.
Wilson's Method: algebraic approximation to the binomial distribution, very accurate, even for very small numbers.
https://webarchive.nationalarchives.gov.uk/20170106081156/http://www.apho.org.uk/resource/item.aspx?RID=39445 see "contains".
classic = Stephen Few's Method = the way I knew it: sqrt( mu*(1-mu) / n )
http://www.jerrydallal.com/LHSP/psd.htm
https://commons.wikimedia.org/wiki/File:ComparisonConfidenceIntervals.png
The apho Wilson method first yielded wrong upper limits in my translation (it needs 0:1 instead of %). Thus I added the wikipedia formula:
https://de.wikipedia.org/wiki/Konfidenzintervall_einer_unbekannten_Wahrscheinlichkeit#Wilson-Intervall
https://en.wikipedia.org/wiki/Binomial_proportion_confidence_interval
Which other methods should I include? (That's not the hard part anymore)

Author(s)

Berry Boessenkool, berry-b@gmx.de, Oct 2013

References

https://www.perceptualedge.com/articles/visual_business_intelligence/variation_and_its_discontents.pdf
Excellent explanation of bayesian take on proportions: http://varianceexplained.org/r/empirical_bayes_baseball/

Examples

# Taken directly from Stephen Few's PDF:
funnel <- read.table(header=TRUE, text="
Name SampleSize Incidents
Tony 2 2
Mike 400 224
Jan 100 54
Bob 1000 505
Sheila 2 1
Jeff 10 5
Sandy 500 236
Mitch 200 92
Mary 10 3
John 2 0")
str(funnel)
X <- funnel$Incidents
N <- funnel$SampleSize
barplot(X/N, names=funnel$Name, main="success rate")
# not showing n!
funnelPlot(X,N)
# arguments for subfunctions as text may be given this way:
funnelPlot(x=X, n=N, labels=funnel$Name, at=list(cex=0.7, col="red"))
# Labeling many points is not very clear...
funnelPlot(X,N)
sel <- c(1,4,10) # selection
text(N[sel], (X/N*100)[sel], funnel$Name[sel], cex=0.7)
# You could also pass a vector with partly empty strings to funnelPlot
funnelPlot(x=X, n=N, labels=replace(funnel$Name, c(2,3,5:9), ""), at=list(adj=0.5))
# Even though Jan is more successfull than Mary in succes rate terms, both are
# easily within random variation. Mary may just have had a bad start.
# That Mike is doing better than average is not random, but (with 95% confidence)
# actually due to him being a very good seller.
# one more interesting option:
funnelPlot(X,N, a3=list(lty=2))
funnelPlot(X,N, a3=list(col=2, lwd=5))
# changing round line ends in legend _and_ plot is easiest with
par(lend=1)
funnelPlot(X,N, a3=list(col=2, lwd=5))
# The Wilson method yields slighty different (supposedly better) limits for small n:
funnelPlot(X,N, method="classic", al=list(title="Standard Method"))
funnelPlot(X,N, add=TRUE, method="wilson", a3=list(lty=2, col="red"),
 a2=list(lty=2, col="blue"), al=list(x="bottomright", title="Wilson Method"))
# Both Wilson method implementations yield the same result:
funnelPlot(X,N, method="wilson")
funnelPlot(X,N, add=TRUE, method="wilsonapho",
 a3=list(lty=2, col="red"), a2=list(lty=2, col="blue"))
# Note on nl used in the function, the n values for the ci lines:
plot( seq( 10 , 300 , len=50), rep( 1, 50) )
points(10^seq(log10(10), log10(300), len=50), rep(0.8, 50) )
abline(v=10)
# CI values change rapidly at small n, then later slowly.
# more x-resolution is needed in the first region, so it gets more of the points

get column from data.frame

Description

(Try to) extract a column from a data frame with USEFUL warnings/errors.
Watch out not to define objects with the same name as x if you are using getColumn in a function!

Usage

getColumn(x, df, trace = TRUE, convnum = TRUE, quiet = FALSE)

Arguments

Value

Vector with values in the specified column

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sep 2016

See Also

subset , getElement

Examples

head(stackloss)
getColumn(Air.Flow, stackloss)
getColumn("Air.Flow", stackloss)
getColumn(2, stackloss)
getColumn("2", stackloss) # works too...
# useful warnings:
getColumn(1, stackloss[0,])
getColumn(1, data.frame(AA=rep(NA,10)) )
# Code returning a character works as well:
getColumn(c("Air.Flow","Acid.Conc")[1], stackloss)
# Can be used in functions to get useful messages:
upper <- function(x, select) getColumn(x, stackloss[select,])
upper(Water.Temp)
upper(2)
upper(2, select=0)
checkerr <- function(x) invisible(is.error(x, force=TRUE, tell=TRUE))
# Pitfall lexical scoping: R only goes up until it finds things:
upper2 <- function(xx) {xx <- "Timmy!"; getColumn(xx, stackloss)} # breaks!
checkerr( upper2(Water.Temp) ) # Column "Timmy" does not exist
# If possible, use "colname" with quotation marks.
# This also avoids the CRAN check NOTE "no visible binding for global variable"
upper3 <- function(char=TRUE)
{
Sepal.Length <- stackloss
if(char) head(getColumn("Sepal.Length", iris), 10)
else head(getColumn( Sepal.Length, iris), 10)
}
checkerr( upper3(char=FALSE) )
upper3(char=TRUE) # use string "Sepal.Length" and it works fine.
# The next examples all return informative errors:
checkerr( upper(Water) ) # partial matching not supported by design
checkerr( getColumn("dummy", stackloss)) # no NULL for nonexisting columns
checkerr( getColumn(2, stackloss[,0]) ) # error for empty dfs
checkerr( getColumn(Acid, stackloss) ) # no error-prone partial matching
checkerr( getColumn(2:3, stackloss) ) # cannot be a vector
checkerr( getColumn(c("Air.Flow","Acid.Conc"), stackloss) )
#getColumn("a", tibble::tibble(a=1:7, b=7:1)) # works but warns with tibbles
# Pitfall numerical column names:
df <- data.frame(1:5, 3:7)
colnames(df) <- c("a","1") # this is a bad idea anyways
getColumn("1", df) # will actually return the first column, not column "1"
getColumn("1", df, convnum=FALSE) # now gives second column
# as said, don't name column 2 as "1" - that will confuse people
# More on scoping and code yielding a column selection:
upp1 <- function(coln, datf) {getColumn(substitute(coln), datf)[1:5]}
upp2 <- function(coln, datf) {getColumn( coln, datf)[1:5]}
upp1(Sepal.Length, iris)
upp2(Sepal.Length, iris)
upp1("Sepal.Length", iris)
upp2("Sepal.Length", iris)
vekt <- c("Sepal.Length","Dummy")
# upp1(vekt[1], iris) # won't work if called e.g. by testExamples()
upp2(vekt[1], iris)

get the name of an input in nested function calls

Description

get the name of an input in nested function calls

Usage

getName(x)

Arguments

Value

Character string with the name

Author(s)

https://stackoverflow.com/users/2725969/brodieg Implementation Berry Boessenkool, berry-b@gmx.de, Sep 2016

See Also

https://stackoverflow.com/a/26558733, substitute

Examples

# This does not work well:
lower <- function(x) deparse(substitute(x))
upper <- function(y) lower(y)
lower(pi) # returns "pi", as expected
upper(pi) # returns "y".
# That's why there is getName:
getName(pi) # returns "pi", as expected
upper <- function(y) getName(y)
upper(pi) # yay!
upper("dummy")
upper(dummy) # works also for nonexistent objects
dummy <- 7
upper("dummy") # still stable
upper(dummy) # still stable
upper(stackloss[1:5,])
upper2 <- function(data) upper(data)
upper2("K")
upper2(K)
# getName only works correctly if x is not an evaluated object:
lower2 <- function(inp, assign=FALSE) {if(assign) inp <- inp; getName(inp)}
lower2(pi) # "pi"
lower2(pi, TRUE) # "3.14159265358979"

GOF measures

Description

Goodness of Fit measures (GOF) for two vectors.
gofNA: not exported, checks input for each of the functions:
rsquare: Coefficient of determination (R2)
rmse: Root Mean Square Error (for minimizing in optim )
nse: Nash-Sutcliffe efficiency, based on RHydro::eval.NSeff
kge: Kling-Gupta efficiency (better than NSE), based on hydroGOF::KGE, where there are many more options

Usage

gofNA(a, b, quiet = FALSE, fun = "")
rsquare(a, b, quiet = FALSE)
rmse(a, b, quiet = FALSE)
nse(a, b, quiet = FALSE)
kge(a, b, quiet = FALSE)

Arguments

Value

Single numerical value

Note

NAs are omitted with warning.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sept 2016

See Also

cor , lm . https://en.wikipedia.org/wiki/R-squared, https://en.wikipedia.org/wiki/Mean_squared_error

Examples

# R squared and RMSE --------------------------------------------------------
set.seed(123)
x <- rnorm(20)
y <- 2*x + rnorm(20)
plot(x,y)
legGOF <- function(a,b)
 {
 text(a,b, paste(c(" R2","RMSE"," NSE"," KGE"), collapse="\n"), adj=1.2)
 text(a,b, paste(round(c(rsquare(x,y), rmse(x,y), nse(x,y), kge(x,y)),5),
 collapse="\n"), adj=0)
 }
legGOF(-1.5, 2) # R2 good, but does not check for bias (distance from 1:1 line)
abline(a=0,b=1) ; textField(-1.5,-1.5, "1:1")
abline(lm(y~x), col="red")
p <- predict(lm(y~x))
points(x, p, pch=3, col="red")
segments(x, y, x, p, col="red")
stopifnot(all.equal( nse(y,p) , rsquare(y,x) ))
# Input checks
is.error( rmse(1:6, 1:8) , tell=TRUE)
nse(replace(x,3,NA), y)
kge(rep(NA,20), y)
rmse(0,0, quiet=TRUE)
rsquare(1:6, tapply(chickwts$weight, chickwts$feed, mean) )
## Not run: # time consuming Simulation
# sample size bias
x <- 1:1000
y <- x+rnorm(1000)
rmse(x,y) # 0.983
ssize <- rep(5:1000, 3)
sgofs <- sapply(ssize, function(n){i <- sample(1:1000,n); c(rsquare(x[i],y[i]),rmse(x[i],y[i]))})
plot(ssize, sgofs[2,]) # RMSE: no bias, symmetric convergence
plot(ssize, sgofs[1,]) # R2: small underestimation in small samples
if(require(pbapply)) sapply <- pbsapply
r2 <- sapply(1:10000, function(i){
 x <- rnorm(20); y <- 2*x + rnorm(20); c(rsquare(x,y), rmse(x,y)) })
hist(r2[1,], breaks=70, col=5,
main= "10'000 times x <- rnorm(20); y <- 2*x + rnorm(20); rsquare(x,y)")
# For small samples, R^2 can by chance be far off the 'real' value!
hist(r2[2,], breaks=70, col=5, main= "... rsquare(x,y)")
# RMSE is more symmetric and gaussian
## End(Not run)
# NSE and KGE ---------------------------------------------------------------
y <- dbeta(1:40/40, 3, 10) # simulated
x <- y + rnorm(40,0,sd=0.2) # observed
plot(x)
lines(y, col="blue")
legGOF(25, 2)
rmse(x,y) ; rmse(y,x)
nse(x,y) ; nse(y,x) # x=obs, y=sim (second command is wrong)
kge(x,y) ; kge(y,x)

extract pdf link from google search result

Description

restrict pdf link from a google search to actual link with text processing

Usage

googleLink2pdf(googlelink)

Arguments

Value

Characterstring with only the basic link

Note

The function is not vectorized! If you have many links, use a loop around this function...

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2012

See Also

strsplit , gsub

Examples

Link <- paste0("https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1",
 "&cad=rja&sqi=2&ved=0CDIQFjAA&url=http%3A%2F%2Fcran.r-project.org",
 "%2Fdoc%2Fmanuals%2FR-intro.pdf&ei=Nyl4UfHeOIXCswa6pIC4CA",
 "&usg=AFQjCNGejDwPlor4togQZmQEQv72cK9z8A&bvm=bv.45580626,d.Yms")
googleLink2pdf(Link)
Link <- paste0("https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1",
 "&cad=rja&uact=8&ved=0ahUKEwjLlfmClavRAhWaN1AKHcGSBjEQFgghMAA",
 "&url=http%3A%2F%2Fstackoverflow.com%2Fquestions%2Ftagged%2Fr",
 "&usg=AFQjCNHYj6HjSs6Lvczn9wMWxE3slCdq1Q&bvm=bv.142059868,d.ZWM")
googleLink2pdf(Link)
Link <- paste0("https://www.google.de/url?sa=t&rct=j&q=&esrc=s&source=web&cd=2",
 "&cad=rja&uact=8&ved=0ahUKEwjLlfmClavRAhWaN1AKHcGSBjEQFggpMAE&",
 "url=http%3A%2F%2Fstackoverflow.com%2Fquestions%2Ftagged%2F%3Ftagnames",
 "%3Dr%26sort%3Dactive&usg=AFQjCNGkPGHq05qwKLLW4vRXdmk2Olhmig&bvm=bv.142059868,d.ZWM")
googleLink2pdf(Link)

Histogram for classes

Description

Improvement of tapply(x, g, hist) with x and g taken from a data.frame

Usage

groupHist(
 df,
 x,
 g,
 xlab = "",
 ylab = "",
 breaks = 20,
 las = 1,
 main = NULL,
 unit = NA,
 col = "purple",
 ...
)

Arguments

Details

Uses split to categorize into groups.

Value

NULL, used for plotting

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2015

See Also

hist , tapply

Examples

groupHist(chickwts, weight, "feed", col="salmon")
groupHist(chickwts, "weight", "feed", col=2, unit="grams at age 6 weeks")
groupHist(chickwts, weight, feed, col="khaki", breaks=5, main="Hi there")
groupHist(iris, Petal.Width, Species)

head and tail

Description

show head and tail of an object with one command

Usage

headtail(x, n = 1, nh = n, nt = n, na = FALSE, ...)

Arguments

Details

Tries to find good methods of combining the two results according to class(x).

Value

head result

Author(s)

Berry Boessenkool, berry-b@gmx.de, Mrz 2016

See Also

head

Examples

head(letters, n=3)
headtail(letters)
headtail(letters, n=3)
headtail(letters, n=3, na=TRUE)
head(letters, n=-10)
headtail(letters, n=-10, na=TRUE) # doesn't make sense for headtail
head(freeny.x, n=3) # matrix
headtail(freeny.x, n=3, na=TRUE) # no names for head-part
headtail(women, n=3, na=TRUE) # data.frame works fine
head(freeny.y, n=3)
headtail(freeny.y, n=3, na=TRUE)
head(library, n=3)
headtail(library, n=3, na=TRUE)
headtail(library, na=TRUE)
ftable(Titanic)
head(stats::ftable(Titanic), n=4)
headtail(stats::ftable(Titanic), n=4, na=TRUE)
head(table(sample(1:9, 30, TRUE)), n=3)
headtail(table(sample(1:9, 30, TRUE)), n=3, na=TRUE)
head(table(state.division, state.region), n=3)
headtail(table(state.division, state.region), n=3, na=TRUE)

Horizontal histogram

Description

Draw a histogram with bars horizontally

Usage

horizHist(
 Data,
 breaks = "Sturges",
 freq = TRUE,
 plot = TRUE,
 col = par("bg"),
 border = par("fg"),
 las = 1,
 xlab = if (freq) "Frequency" else "Density",
 main = paste("Histogram of", deparse(substitute(Data))),
 ylim = range(HBreaks),
 labelat = pretty(ylim),
 labels = labelat,
 ...
)

Arguments

Details

Uses barplot to draw the histogram horizontally.

Value

function to address y-coordinates

Note

Doesn't work with breakpoints provided as a vector with different widths of the bars.
Please do not forget to use the function for vertical positioning from the current horizontal histogram. If It is not working correctly, you might have the function defined from some prior horizHist result.

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2011-2012

See Also

hist , barplot , axis

Examples

# Data and basic concept
set.seed(8); ExampleData <- rnorm(50,8,5)+5
hist(ExampleData)
hpos <- horizHist(ExampleData)
# Caution: the labels at the y-axis are not the real coordinates!
# abline(h=2) will draw above the second bar, not at the label value 2.
# Use hpos (horizontal position), the function returned by horizHist:
abline(h=hpos(11), col=2, lwd=2)
# Further arguments
horizHist(ExampleData, xlim=c(-8,20))
horizHist(ExampleData, ylab="the ... argument worked!", col.axis=3)
hist(ExampleData, xlim=c(-10,40)) # with xlim
horizHist(ExampleData, ylim=c(-10,40), border="red") # with ylim
hpos <- horizHist(ExampleData, breaks=20, col="orange")
axis(2, hpos(0:10), labels=FALSE, col=2) # another use of hpos()

expressions/values conditional on whether tested expression returns an error.

Description

Does a given expression return an error? Return specific values/expressions for either case. Useful for loops when you want to easily control values based on errors that arise.

Usage

if.error(expr, error_true, error_false)

Arguments

Value

Returns value or expression stated in error_true or error_false, depending on whether the tested expression throws an error.

Author(s)

Nick Bultman, njbultman74@gmail.com, September 2020

See Also

is.error

Examples

if.error( log(3), "error", "no_error" )
if.error( log(3), "error", log(3) )
if.error( log(3), log(6), "no_error" )
if.error( log("a"), log(6), log(3) )

insert rows to data.frame

Description

Insert (multiple) rows to a data.frame, possibly coming from another data.frame, with value and row recycling

Usage

insertRows(df, r, new = NA, rcurrent = FALSE)

Arguments

Value

data.frame

Note

Has not yet been tested with RWI (really weird input), so might not be absolutely foolproof

Author(s)

Berry Boessenkool, berry-b@gmx.de, Oct 2015, based on code by Ari B. Friedmann (I added the for loop, recycling, input controls and data.framification)

References

https://stackoverflow.com/questions/11561856/add-new-row-to-dataframe

See Also

addRows , sortDF

Examples

existingDF <- as.data.frame(matrix(1:20, nrow=5, ncol=4))
existingDF
insertRows(existingDF, 2) # default new=NA is recycled
insertRows(existingDF, 2, rcurrent=TRUE) # after current line, not at it
insertRows(existingDF, 2, 444:446)
insertRows(existingDF, 3, new=matrix(10:1,ncol=2)) # input warning
insertRows(existingDF, 1)
insertRows(existingDF, 5)
insertRows(existingDF, 6) # use addRows for this:
addRows(existingDF, n=1)
insertRows(existingDF, 9) # pads NA rows inbetween
# Works for multiple rows as well:
insertRows(existingDF, r=c(2,4,5), new=NA, rcurrent=TRUE)
insertRows(existingDF, r=c(2,4,5), new=NA)
insertRows(existingDF, r=c(2,4,4), new=NA)
insertRows(existingDF, r=c(2,4,4), new=NA, rcurrent=TRUE)
# Also works with a data.frame for insertion:
insertDF <- as.data.frame(matrix(101:112, nrow=3, ncol=4))
insertRows(existingDF, 3, new=insertDF) # excess rows in new are ignored
insertRows(existingDF, c(2,4,5), new=insertDF)
insertRows(existingDF, c(2,4:6), new=insertDF) # rows are recycled

Check if an expression returns an error

Description

Does a given expression return an error? Useful for tests where you want to make sure your function throws an error.

Usage

is.error(expr, tell = FALSE, force = FALSE)

Arguments

Value

TRUE/FALSE

Author(s)

Berry Boessenkool, berry-b@gmx.de, May 2016

See Also

stop , try , inherits

Examples

is.error( log(3) )
is.error( log("a") )
is.error( log(3), tell=TRUE )
is.error( log("a"), tell=TRUE )
stopifnot( is.error( log("a") ) ) # or shorter:
is.error( log("a"), force=TRUE)
# is.error( log(3), force=TRUE)
stopifnot(is.error( is.error(log(3), force=TRUE) ))

Convert list of arrays to array

Description

Convert a list of arrays to a single array, conserving names. If dimnames do not need to be checked, you can also directly use
do.call(abind::abind, list(LIST, rev.along=0, use.dnns=TRUE))

Usage

l2array(x, ...)

Arguments

Value

array

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec 2016

See Also

l2df , help , https://stackoverflow.com/a/4310747

Examples

LISTm <- lapply(list(1:6,7:12,13:18,19:24), matrix, ncol=3,
 dimnames=list(x=c("a","b"), y=c("i","j","k")) )
l2array(LISTm)
LIST <- lapply(LETTERS[1:5], function(x) array(paste0(x,1:24), dim=c(3,4,2)))
str(LIST)
LIST[[2]]
LISTa1 <- l2array(LIST)
LISTa1
str(LISTa1)
# The old l2array (<1.13.14, 2017年01月06日) was very slow on large lists.
# I then found abind, which is much much much faster and easier on memory!
# It now replaces the internal old actual conversion code
# l2array still checks the dimnames
LISTa2 <- do.call(abind::abind, list(LIST, rev.along=0, use.dnns=TRUE))
LISTa2
stopifnot(all(LISTa1==LISTa2))
rm(LIST, LISTa1, LISTa2)
# list of dataframes:
LDF <- list(IR1=iris[1:5,1:2], IR2=iris[11:15,1:2], IR3=iris[21:25,1:2])
l2array(LDF)
# General intro to arrays -----
A1 <- array(1:24, dim=c(4,2,3), dimnames=list(
 my_x=paste0("row",1:4), my_y=c("A","B"), paste0("n",1:3)))
A1
which(A1==20, arr.ind=TRUE)
# Selection:
A1[,,"n2"]
A1[,,1:2]
A1["row2",,] # result rotated against expectation -> transpose with t(...)
A1[,"A",]
# aggregation:
apply(A1, MARGIN=1:2, FUN=sum) # keep first two dimensions
apply(A1, MARGIN=c(1,3), FUN=sum) # aggregate over my_y -> row1: 6, 22, 38
A1["row1",,] # 1+5=6, 9+13=22, 17+21=38
as.vector(A1)
A <- array(1:24, dim=c(3,4,2), dimnames=list(x=paste0("x",1:3),
 y=paste0("y",1:4),
 z=paste0("z",1:2)))
str(A)
rm(A)
# l2array -----
A2 <- A1+2
A3 <- A1+4
LIST <- list(A1=A1, A2=A2, A3=A3) # list of arrays
LA <- l2array(LIST)
LA
str(LA)
LA[,,,"A2"]
LA["row2", ,"n2",]
avg <- apply(LA, MARGIN=1:3, mean)
stopifnot(all(avg==A2))
# names check -----
LISTN <- LIST
names(dimnames(LISTN[[2]]))[3] <- "intentional"
dimnames(LISTN[[3]])[3] <- list(paste0("k",1:3))
LAN <- l2array(LISTN)
LAN["row2", ,"k2",] # n2 is now changed to k2
LANa <- do.call(abind::abind, list(LISTN, rev.along=0, use.dnns=TRUE))
all(LAN==LANa)
str(LANa)
LISTN <- LIST
rownames(LISTN[[3]])[2] <- "intentional_diff"
LAN <- l2array(LISTN)
# data type check
is.error( A <- l2array(c(LA, 999)), tell=TRUE, force=TRUE)

List to data.frame

Description

Convert list with vectors of unequal length to dataframe, pad with NAs

Usage

l2df(list, byrow = TRUE)

Arguments

Value

data.frame

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2014

References

https://stackoverflow.com/questions/5531471/combining-unequal-columns-in-r
https://stackoverflow.com/questions/15753091/convert-mixed-length-named-list-to-data-frame
https://stackoverflow.com/questions/5942760/most-efficient-list-to-data-frame-method
https://stackoverflow.com/questions/8799990/converting-given-list-into-dataframe
https://stackoverflow.com/questions/4227223/r-list-to-data-frame

See Also

l2array , sapply , sortDF . If you have a LARGE list each with the same number of values, use the (much!) faster: simplify2array or plyr::quickdf.

Examples

eglist <- list(AA=c(6,9,2,6), BB=1:8, CC=c(-3,2) )
eglist
l2df(eglist) # names are even kept
l2df(eglist, byrow=FALSE)
class( l2df(eglist, byrow=FALSE) ) # data.frame (since 2016年05月24日)
eglist <- list(AA=c(6,9,2,6), BB="no", CC=c(-3,2) )
eglist
str(l2df(eglist)) # now everything is a character
eg2 <- list(AA=c(6,9,2,6), BB=matrix(1:8, ncol=2), CC=c(-3,2) )
eg2
l2df(eg2, FALSE)
# so a matrix is internally converted to a vector and then used regularly
# Naming ----
eg3 <- list(EE=c(AA=3.4), FF=c(AA=3.5), GG=c(AA=3.6))
eg4 <- list(EE=c(AA=3.4,BB=2.4), FF=c(AA=3.5,BB=2.5), GG=c(AA=3.6,BB=2.6))
l2df(eg3)
l2df(eg4)
l2df(eg3, byrow=FALSE)
l2df(eg4, byrow=FALSE)
eg3 <- list(c(AA=3.4), c(AA=3.5), c(AA=3.6))
eg4 <- list(c(AA=3.4,BB=2.4), c(AA=3.5,BB=2.5), c(AA=3.6,BB=2.6))
l2df(eg3)
l2df(eg4)
l2df(eg3, byrow=FALSE)
l2df(eg4, byrow=FALSE)
eg3 <- list(EE=c(3.4), FF=c(3.5), GG=c(3.6))
eg4 <- list(EE=c(3.4,2.4), FF=c(3.5,2.5), GG=c(3.6,2.6))
l2df(eg3)
l2df(eg4)
l2df(eg3, byrow=FALSE)
l2df(eg4, byrow=FALSE)
eg3 <- list(EE=c(3.4), c(3.5), c(3.6))
eg4 <- list(EE=c(3.4,2.4), c(3.5,2.5), c(3.6,2.6))
l2df(eg3)
l2df(eg4)
l2df(eg3, byrow=FALSE)
l2df(eg4, byrow=FALSE)
# Lists with dfs ----
eg5 <- list(AA=c(6,9,2,6), BB=data.frame(CC=1:8, DD=4:-3), EE=c(-3,2) )
eg5
is.error( l2df(eg5), tell=TRUE )# it is not possible to do this with a data.frame
# If you have a list with only data.frames, you could use the following:
eg6 <- list(AA=data.frame(BB=1:8, CC=4:-3), DD=data.frame(EE=23:24, FF=c(-3,2)))
eg6
do.call(cbind, eg6) # but this recycles the values of shorter tables!
colnames(eg6$DD) <- colnames(eg6$AA)
do.call(rbind, eg6)
# check some of the links above for more solutions...

spaced learning

Description

spaced learning e.g. for vocabulary. Uses interactive questions.
Note: this currently clears the console!
Based on https://ncase.me/remember/ by Nicky Case.
At the beginning, new vocab will be asked, skip with empty ENTER.

Usage

learnVocab(vocfile = "C:/Dropbox/Sonstiges/Vokabeln.csv", nnew = 3)

Arguments

Value

Updated vocab list, invisibly.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Apr 2019

Examples

## Not run: # Excluded from checks, works only interactively! 
# initiate empty vocab list:
vocfile <- tempfile("myvocab",fileext=".csv")
cat("learning_day 1\nLEVEL;DE;FR\n1;Das Haus;la maison\n", file=vocfile)
learnVocab(vocfile) # asks new vocab, then tests and changes level as needed
## End(Not run)

legend with multiline title

Description

Draw a legend with title spanning several lines (i.e. with line breaks). Note that this is in development and not all inputs are correctly vectorized yet.

Usage

legendmt(
 x,
 y = NULL,
 legend,
 title,
 x.intersp = 1,
 fill = NA,
 col = par("col"),
 border = NA,
 lty = NA,
 lwd = NA,
 pch = NA,
 ...
)

Arguments

Value

legend output

Author(s)

Berry Boessenkool, berry-b@gmx.de, Apr 2017

See Also

legend

Examples

plot(1:10)
 legend("topleft", letters[1:4], col=1:4, pch=1, title="very long title to be split up")
legendmt("topleft", letters[1:4], col=1:4, pch=1, title="very long title\nnow splat up")
# Alternative:
plot(1:10)
legend("topleft", "very long title to be split up")
legend("topleft", letters[1:4], col=1:4, pch=1, inset=c(0,0.09) )

install.package and library

Description

install and load a package. If a package is not available, it is installed before being loaded

Usage

library2(name, quietly = FALSE, libargs = NULL, ...)

Arguments

Value

messages help instruction.

Note

Passing a vector with packages will work, but give some warnings.

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2014+2020

See Also

install.packages , library

Examples

## Not run: 
## Excluded fom CRAN checks. Package installation on server is unnecessary.
require2(ada)
library2("statmod")
## End(Not run)

axis limits with one end at zero

Description

Calculates the range needed for ylim or xlim in plot, so that axis starts at zero and is extended by 4% at the other end

Usage

lim0(x, f = 1/27, curtail = TRUE)

Arguments

Value

Vector with two values: 0 and by 4

Author(s)

Berry Boessenkool, berry-b@gmx.de, 6.6.2013

References

methods(plot), plot.default . Actually, I found extendrange via plot.function in curve

See Also

The extendrange() utility in package grDevices

Examples

# basic idea:
val <- c(3.2, 1.8, 4.5, 2.8, 0.1, 2.9) # just some numbers
plot(val, ylim=lim0(val) ) # you don't even have to set yaxs="i" ;-)
# "normal" plot:
plot(val)
par("usr") # -0.076 4.676
# if y-axis is not allowed to go below 0, and we're too lazy to set yaxs="i":
plot(val, ylim=lim0(val) )
round( par("usr") , digits=5) # 0.00000 4.66296
# with 0.04 extension as claimed by help page (1/27 in source code = 0.037):
plot(val, ylim=lim0(val, f=0.04) )
round( par("usr") , digits=5) # zero is not included on axis anymore
b <- -val
plot(b)
plot(b, ylim=lim0(b) ) # works with only negative values as well
# can handle only-NA input:
lim0(c(7,NA,NA,NA)[-1])
lim0(c(NA,NA,NA))

lin-log transition histogram

Description

Draw histograms that gradually transform from a linear to a logarithmic axis (animation)

Usage

linLogHist(
 x,
 steps = 100,
 breaks = 20,
 col = "blue",
 las = 1,
 xlab = deparse(substitute(x)),
 xlim = range(x, finite = TRUE),
 box = TRUE,
 parexpr,
 endexpr,
 sleep = 0,
 axisargs = NULL,
 axisargs2 = NULL,
 firstplot = TRUE,
 lastplot = TRUE,
 write_t = TRUE,
 values_t = NULL,
 ...
)

Arguments

Value

Returned invisibly: transformation values used. Plotted: steps number of images.

Note

It's best to save the plots into a pdf or wrap it within
png("Transition%03d"); linLogHist(x); dev.off()

Author(s)

Berry Boessenkool, berry-b@gmx.de, April 2015

See Also

linLogTrans

Examples

x <- rlnorm(700, m=3)
hist(x, col=4)
hist(log10(x), xaxt="n"); logAxis(1); hist(log10(x), col=4, add=TRUE)
op <- par()
linLogHist(x, steps=8, sleep=0.01) # 0.05 might be smoother
linLogHist(x, xlab="ddd", breaks=30, steps=3, write_t=FALSE, yaxt="n", freq=FALSE,
 main="", parexpr='par(mar=c(2,0.5,1.5,0.5), mgp=c(1.8,1,0))',
 endexpr='mtext("Probability Density", line=-1.2, adj=0.03, outer=T)')
par(op)
## Not run: 
## Rcmd check --as-cran doesn't like to open external devices such as pdf,
## so this example is excluded from running in the checks.
pdf("LinLogTransitionAnimation.pdf")
linLogHist(x, main="Example Transition", steps=20, freq=FALSE)
dev.off()
# if you have FFmpeg installed, you can use the animation package like this:
library2(animation)
saveVideo(linLogHist(x, steps=50), video.name="linlog_anim.mp4", interval=0.08,
ffmpeg="C:/ffmpeg-20150424-git-cd69c0e-win64-static/bin/ffmpeg.exe")
## End(Not run)

Animation for transition from linear to logarithmic axis

Description

draw images that gradually transform from a linear to a logarithmic axis

Usage

linLogTrans(
 x,
 y,
 log = "x",
 steps = 100,
 base = 1,
 las = 1,
 plot = TRUE,
 xlim = range(x, finite = TRUE),
 ylim = range(y, finite = TRUE),
 box = TRUE,
 parexpr,
 endexpr,
 sleep = 0,
 firstplot = TRUE,
 lastplot = TRUE,
 write_t = TRUE,
 values_t = NULL,
 pointsarg = NULL,
 ...
)

Arguments

Value

Returned invisibly: transformation values used. Plotted: steps number of images.

Note

if(steps>1000) steps <- 1000. In the unlikely case you need more steps, please let me know and I'll change the code.
It's best to save the plots into a pdf (see the example) or wrap it within
png("Transition%03d"); linLogTrans(x,y); dev.off()

Author(s)

Berry Boessenkool, berry-b@gmx.de, June 2014

References

x^(1/t) is based on the first comment on https://stackoverflow.com/questions/15994442/
besides the nice graphic properties of logtransformations, check this page for the implications on rates of change:
https://sfew.websitetoolbox.com/post/show_single_post?pid=1282690259&postcount=4
https://sfew.websitetoolbox.com/post/show_single_post?pid=1282691799&postcount=5

See Also

logVals

Examples

set.seed(42); x <- 10^rnorm(100, 3); y <- runif(100)
linLogTrans(x,y, steps=15, sleep=0.05)
linLogTrans(x,y, steps=15, log="y", ylim=c(0.1, 0.8), base=c(1,2,5))
linLogTrans(x,y, steps=15, log="xy", sleep=0.05) # sleep not used on my mac
## Not run: 
## Rcmd check --as-cran doesn't like to open external devices such as pdf,
## so this example is excluded from running in the checks.
pdf("LinLogTransitionAnimation.pdf")
linLogTrans(x,y, main="Example Transition")
dev.off()
# if you have FFmpeg installed, you can use the animation package like this:
library2(animation)
saveVideo(linLogTrans(x,y, steps=300), video.name="linlog_anim.mp4", interval=0.01,
 ffmpeg="C:/ffmpeg-20150424-git-cd69c0e-win64-static/bin/ffmpeg.exe")
# old t values were dependent on the value of steps
findt <- function(steps) {
 # t-values for x^(1/t):
 allt <- 10^(seq(0,2.5,len=1e4) )
 # selection at upper half of these values;
 # Otherwise, the animation slows down too much at the end
 f <- 1.4 # multiplication factor due to length loss by unique
 sel <- round(seq(1, 10, len=f*steps)^4) #0.5*seq(1, 100, len=1.3*steps)^2 + 0.5*
 sel2 <- unique(round(log10(seq(1, 10, len=f*steps))*f*steps))
 sel2[1] <- 1
 sel <- sel[sel2]
 # final t-values for transition:
 allt <- unique(round(allt[sel], 2))
 data.frame(x=seq(1,1000,len=length(allt)), t=allt)
 }
plot(findt(1000), type="l", log="y", las=1)
for(i in 5:999) lines(findt(i), col=rainbow2(1000)[i])
d <- findt(300)
lines(d) # good average
plot(d$x[-1], diff(d$t), type="l", ylim=c(3e-3,10), yaxt="n", log="y", main="t value growth rate")
logAxis(2) ; lines(d$x[-1], diff(d$t))
d2 <- findt(1000)
lines(d2$x[-1], diff(d2$t), col=2)
lines(2:1000, diff(linLogTrans(1,1, steps=1000, plot=F)), col=4)
d <- findt(300)
cf <- coef(lm(t ~ poly(x,17, raw=T), data=d)) # these are currently used in the function
x <- 1:1000
y <- rowSums(sapply(1:18, function(i) cf[i]*x^(i-1)), na.rm=TRUE)
lines(x, y, lwd=3)
y[1] <- 1
plot(x, round(y, 3), ylim=c(1,3), xlim=c(0,500), type="l", log="")
dput(round(y, 3))
findn <- function(steps) nrow(findt(steps))
plot(1:1000, sapply(1:1000, findn), type="l")
abline(b=1, a=0)
## End(Not run)

linear regression with plotting

Description

uses lm ; plots data if add=FALSE, draws the regression line with abline and writes the formula with legend

Usage

linReg(
 x,
 y = NULL,
 data = NULL,
 add = FALSE,
 digits = 2,
 quiet = FALSE,
 pch = 16,
 col = "black",
 colline = "red",
 colband = addAlpha(colline),
 level = 0.95,
 plotrange = par("usr")[1:2],
 lwd = 1,
 xlab = deparse(substitute(x)),
 ylab = deparse(substitute(y)),
 main = "linear regression",
 pos1 = "top",
 pos2 = NULL,
 inset = 0,
 legargs = NULL,
 ...
)

Arguments

Value

None, used for plotting and drawing.

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2011-2012, 2015

See Also

lm , mReg , expReg , legend , par , abline .

Examples

a <- 1:30
b <- a/2.345+rnorm(30,0,3)
linReg(a,b)
linReg(a,b, ylab="Hallo", pch=1, colline=3, main="Regression by Berry")
linReg(a, b, pos1=15, pos2=0) # position of topleft corner of legend
linReg(a, b, pos1=NA) # to suppress legend
linReg(a, b, plotrange=5:20) # only for plotting, all data points are used!
linReg(a,b, digits=c(2,3,2,-1) ) # Do not write RMSE into legend
# Formula specification:
linReg(b~a)
linReg(Fertility~Education, data=swiss, col="blue", colline="green")
# col is for points, colline + colband for regression line + conf.int.
# For more flexibility with the datapoints, plot first, then use linReg with add=TRUE:
plot(a,b, xlim=c(-5,45))
linReg(a, b, pos1="bottomright", add=TRUE, inset=.1) # inset: distance from plot border
linReg(a, b, digits=c(7,4,3), add=TRUE, colline=3, lty=2, lwd=4, level=0.8)
linReg(a, b, pos1="topleft", inset=c(-0.1, 0.3), legargs=list(xpd=TRUE), add=TRUE)

arrow at locator point in graph

Description

Draw arrow at positions in a graph located by clicking and return the code to recreate it

Usage

locArrow(digits = 2, length = 0.1, code = 2, ...)

Arguments

Details

Not tested across platforms yet...

Value

Character string with code

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jun 2016

See Also

locLine , locator , abline

Examples

plot(cumsum(rnorm(60)), type="l")
## locArrow() # only do this manually in interactive() mode
## locArrow(col="blue", lwd=3)

abline at locator point in graph

Description

Draw vertical and/or horizontal lines at positions in a graph located by clicking

Usage

locLine(h = TRUE, v = TRUE, n = 1, ...)

Arguments

Details

Not tested across platforms yet...

Value

locator result

Author(s)

Berry Boessenkool, berry-b@gmx.de, Mar 2016

See Also

locArrow , locator , abline

Examples

plot(cumsum(rnorm(60)), type="l")
## locLine() # only do this manually in interactive() mode

locator with immediate points in Rstudio

Description

Have locator add points on the graph directly after clicking, even in Rstudio Graphics devices

Usage

locatorRS(n = 512, type = "p", ...)

Arguments

Value

List with x and y

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec 2020

See Also

https://stackoverflow.com/q/65147219/1587132

Examples

if(interactive()){
plot(1:10, type="n")
locs <- locator(n=3, type="o") # click on locations in graph. 
# If you do not set n at beginning, press ESC to finish
locs
# In Rstudio, points only appear after finishing.
locatorRS(7, col="blue", type="o") # plots after each click
}

Label logarithmic axes

Description

Shortcut to calling logVals , axis and abline

Usage

logAxis(
 side = 1,
 log = NULL,
 lcol = "grey",
 lty = 1,
 lwd = 1,
 labels = NULL,
 allticks = FALSE,
 allargs = NULL,
 expr,
 las = 1,
 from,
 to,
 Range,
 base = NA,
 big.mark = "'",
 decimal.mark = ".",
 scientific = FALSE,
 exponent = 5,
 expobase1 = FALSE,
 allbase = 1:9,
 box = TRUE,
 ...
)

Arguments

Value

An invisible list with

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sept 2014

See Also

logVals , log10

Examples

x <- 10^runif(200, -1, 2)
plot(x, yaxt="n", log="y", pch=16)
logAxis(2)
# overplot vertical lines:
logAxis(2, expr=points(x, pch=16), base=1, col.axis=4, font=2)
# plots where log="x" is not possible:
hist(log10(x), breaks=20, col.axis="grey", main="")
logAxis(side=3, expr=hist(log10(x), breaks=20, add=TRUE, col=3))
# or just use the new logHist function (Feb 2016):
logHist(x, breaks=20, col=3)
# automatic calculation of from, to and base:
plot(1:3, axes=FALSE)
logAxis(1:2) # side can be a vector - nice, huh?
plot(-1:4, axes=FALSE)
logAxis(1:2) # treshold for base 1 instead of c(1,2,5) at 4 exponents exceeded.
plot(1:3, axes=FALSE)
logAxis(1:2, allticks=TRUE, lcol=NA)
par(mar=c(3,3,1,4))
plot(8:15) ; logAxis(4) # with exponents if they are above 5
plot(10^(1:4), ylim=10^c(4,1), type="o", log="y") # reverse axis:
plot(10^(1:5), log="y"); logAxis(4, exponent=3) # different treshold
plot(10^(1:5), log="y"); logAxis(4, expon=3, base=c(1,2,5), expobase1=TRUE)
plot(-8:5); logAxis(4, allbase=c(1,2,5)) # In case you want to mislead...

Histogram of logarithmic values

Description

Draw histogram of values on a logarithmic scale with nice axis labels

Usage

logHist(
 x,
 logargs = NULL,
 main = xmain,
 xlab = xname,
 col = "tan",
 add = FALSE,
 las = 1,
 ylim = NULL,
 freq = TRUE,
 quiet = FALSE,
 ...
)

Arguments

Value

none

Author(s)

Berry Boessenkool, berry-b@gmx.de, Feb 2016

See Also

logAxis , hist

Examples

dat <- rbeta(1e4, 2, 18)*100
hist(dat, col="tan", breaks=50)
logHist(dat)
logHist(dat, freq=FALSE)
logHist(dat, breaks=50)
logHist(dat,xlim=c(0,2)) # xlim in powers of ten
logHist(c(-1,0,1,2,2,3,3,4,8,10,50)) # warning for negative values

Logarithmically spaced points

Description

Calculates values that are in logarithmic distance from each other e.g. to produce logarithmic interval borders.
For exact logarithmic spacing, use 10^seq(from=log10(1), to=log10(100), len=100)

Usage

logSpaced(
 base = 1.1708,
 n = 20,
 min = 1,
 max = n,
 plot = TRUE,
 pch = 3,
 las = 1,
 ylab = "base",
 ...
)

Arguments

Value

Vector or matrix, depending on base input

Note

base >1 concentrates points at low values, base<1 at high values. base does not relate to base in log !

Author(s)

Berry Boessenkool, berry-b@gmx.de, Oct 2014

See Also

classify , log , https://stackoverflow.com/a/29963530

Examples

logSpaced()
logSpaced(base=c(1.1, 1.5, 2), n=6, min=5, max=10)
d <- logSpaced(seq(0.8, 1.2, 0.025), main="logarithmically spaced points")
# the default base for the default n (20) will give an approximately equal
# bin width across the range on a logarithmic scale:
d <- logSpaced()
plot(d, rep(1,20), log="x")
# For exactly spacing logarithmically, use
plot(10^seq(from=log10(1), to=log10(100), len=100), log="y")

Create log-axis values and labels

Description

Create nice values and labels to write at logarithmic axes

Usage

logVals(
 from = -7,
 to = 7,
 Range,
 base = 1,
 big.mark = "'",
 decimal.mark = ".",
 scientific = FALSE,
 exponent = Inf,
 expobase1 = FALSE,
 allbase = 1:9,
 ...
)

Arguments

Value

A list with

Author(s)

Berry Boessenkool, berry-b@gmx.de, Feb 2014

See Also

log10 , logAxis , https://web.archive.org/web/20190504213250/https://r.789695.n4.nabble.com/expression-exponent-labeling-td4661174.html

Examples

# Easiest use: vector with data (logVals automatically finds range):
y <- 10^runif(50, -1, 2)
plot(y, log="y") # not much control over placement and format of labels
plot(y, log="y", yaxt="n")
# now do this better, with custom bases:
lv <- logVals(y, base=c(1,2,5) )
axis(2, lv$vals, lv$labs, las=1)
# Default arguments:
lv <- logVals()
str(lv) # values, formatted labels, all 10^x values for lines
plot(1, ylim=c(1e-3, 1e4), log="y", yaxt="n", yaxs="i")
abline(h=lv$all, col=8 )
box("plot")
axis(2, lv$vals, lv$labs, las=1)
lines(seq(0.5, 1.5, len=50), 10^runif(50, -3, 4), col=2)
# Formatting labels:
logVals( )$labs
logVals(scient=TRUE )$labs
logVals(exponent=5 )$labs # expression with exponent, see logAxis
logVals(big.mark=" " )$labs
logVals(big=".", dec=",")$labs # German style (not recommended)

Show memory size of objects in MB

Description

Show memory size of the biggest objects in MB. Helps you find the biggest memory killers.

Usage

lsMem(n = 6, pos = 1, ...)

Arguments

Value

Named vector with object sizes in MB (MegaBytes)

Author(s)

Berry Boessenkool, berry-b@gmx.de, Feb 2014

References

https://stackoverflow.com/questions/1358003/tricks-to-manage-the-available-memory-in-an-r-session

See Also

object.size , ls

Examples

## Not run: 
## excluded from CRAN check - I forgot why, but there's probably a good reason
lsMem()
## End(Not run)

Linear storage cascade, unit hydrograph

Description

Optimize the parameters for unit hydrograph as in the framework of the linear storage cascade. Plot observed & simulated data

Usage

lsc(
 P,
 Q,
 area = 50,
 Qbase = Q[1],
 n = 2,
 k = 3,
 x = 1:length(P),
 fit = 1:length(Q),
 plot = TRUE,
 main = "Precipitation and discharge",
 plotsim = TRUE,
 returnsim = FALSE,
 type = c("o", "l"),
 legx = "center",
 legy = NULL,
 ...
)

Arguments

Value

Either vector with optimized n and k and the Nash-Sutcliffe Index, or simulated discharge, depending on the value of returnsim

Author(s)

Berry Boessenkool, berry-b@gmx.de, July 2013

References

https://ponce.sdsu.edu/onlineuhcascade.php
Skript 'Abflusskonzentration' zur Vorlesungsreihe Abwasserentsorgung I von Prof. Krebs an der TU Dresden
https://tu-dresden.de/bu/umwelt/hydro/isi/sww/ressourcen/dateien/lehre/dateien/abwasserbehandlung/uebung_ws09_10/uebung_awe_1_abflusskonzentration.pdf
https://github.com/brry/misc/blob/master/HydroII-Lernzettel.pdf

See Also

unitHydrograph , superPos , nse , rmse . deconvolution.uh in the package hydromad, https://hydromad.github.io/

Examples

qpfile <- system.file("extdata/Q_P.txt", package="berryFunctions")
qp <- read.table(qpfile, sep="\t", dec=",", header=TRUE)
calib <- qp[1:90,]
valid <- qp[-(1:90),]
# Area can be estimated from runoff coefficient (proportion of N becoming Q):
# k*P * A = Q * t A = Qt / kP
# Q=0.25 m^3/s * t=89 h * 3600 s/h k=psi* P =34mm = 0.034m = m^3/m^2
# / 1e6 m^2/km^2 = km^2
mean(calib$Q) * length(calib$Q) *3600 / ( 0.7 * sum(calib$P)/1000) / 1e6
# 3.368 km^2
# calibrate Unit Hydrograph:
UHcalib <- lsc(calib$P, calib$Q, area=3.4)
UHcalib # n 0.41 k 244.9 NSE 0.74 psi 0.45
# Psi is lower than 0.7, as it is now calculated on direct runoff only
# Corresponding Unit Hydrograph:
UH <- unitHydrograph(n=UHcalib["n"], k=UHcalib["k"], t=1:length(calib$P))
plot(UH, type="l") # That's weird anyways...
sum(UH) # 0.58 - we need to look at a longer time frame
# calibrate Unit Hydrograph on peak only:
lsc(calib$P, calib$Q, area=3.4, fit=17:40) # n 0.63 k 95.7 NSE 0.67
# for fit, use index numbers, not x-axis units (if you have specified x)
# Simulated discharge instead of parameters:
lsc(calib$P, calib$Q, area=3.4, returnsim=TRUE, plot=FALSE)
## Not run: ## Time consuming tests excluded from CRAN checks
# Apply this to the validation event
dummy <- lsc(valid$P, valid$Q, area=3.4, plotsim=FALSE, type="l")
Qsim <- superPos(valid$P, UH)
Qsim <- Qsim + valid$Q[1] # add baseflow
lines(Qsim, lwd=2, xpd=NA)
legend("center", legend=c("Observed","Simulated from calibration"),
 lwd=c(1,2), col=c(2,1) )
nse(valid$Q, Qsim[1:nrow(valid)]) # 0.47, which is not really good.
# performs OK for the first event, but misses the peak from the second.
# this particular UH is apparently not suitable for high pre-event soil moisture.
# Along with longer events, UH properties may change!!!
dummy # in-sample NSE 0.75 is a lot better
# Now for the second peak in the validation dataset:
lsc(valid$P, valid$Q, type="l", area=3.4, fit=60:90) # overestimates first peak
# Area cannot be right - is supposedly 17 km^2.
# Different starting points for optim:
lsc(calib$P, calib$Q, area=3.4, n= 2 , k= 3, plot=FALSE) # Default
lsc(calib$P, calib$Q, area=3.4, n= 5 , k= 20, plot=FALSE) # same result
lsc(calib$P, calib$Q, area=3.4, n=10 , k= 20, plot=FALSE) # ditto
lsc(calib$P, calib$Q, area=3.4, n=10 , k= 3, plot=FALSE) # ditto
lsc(calib$P, calib$Q, area=3.4, n= 1.9, k=900, plot=FALSE) # ditto
lsc(calib$P, calib$Q, area=3.4, n=50 , k= 20) # nonsense
# the catchment is small, so n must be low.
#sensitivity against area uncertainty:
Asens <- data.frame(A=seq(1,15,0.5),
 t(sapply(seq(1,15,0.5), function(A) lsc(calib$P, calib$Q, area=A, plot=FALSE))))
Asens
plot(Asens$A, Asens$NSE, type="l", ylim=c(-0.3,2), las=1, main="lsc depends on area")
abline(v=3.4, lty=2)
lines(Asens$A, Asens$n, col=2)
points(3.4, 2, col=2)
lines(Asens$A, Asens$psi, col=5)
text(rep(13,4),y=c(1.5, 0.8, 0.4,0), c("k ->","<- NSE","<- n","<- psi"), col=c(4,1,2,5))
par(new=TRUE); plot(Asens$A, Asens$k, type="l", ann=FALSE, axes=FALSE, col=4)
axis(4, col.axis=4)
points(3.4, 3, col=4)
# Autsch - that shouldn't happen!
# Still need to find out what to do with optim
lsc(calib$P, calib$Q, area=1.6) # not bad indeed
## End(Not run)

Multiple regression

Description

Multiple regression fitting various function types including e.g. linear, cubic, logarithmic, exponential, power, reciprocal. Quick way to find out what function type fits the data best. Plots data and fitted functions and adds a legend with the functions (or their types=structure) sorted by R squared. Returns the fitted functions with their parameters and R^2 values in a data.frame.

Usage

mReg(
 x,
 y = NULL,
 data = NULL,
 Poly45 = FALSE,
 exp_4 = FALSE,
 xf = deparse(substitute(x)),
 yf = deparse(substitute(y)),
 ncolumns = 9,
 plot = TRUE,
 add = FALSE,
 nbest = 12,
 R2min,
 selection = NULL,
 digits = 2,
 extend = 0.4,
 xlim = extendrange(x, f = extend),
 ylim = extendrange(y, f = extend),
 xlab = xf,
 ylab = yf,
 las = 1,
 lwd = rep(1, 12),
 lty = rep(1, 12),
 col = NULL,
 pcol = par("col"),
 pch = 16,
 legend = TRUE,
 legargs = NULL,
 legendform = "nameform",
 quiet = FALSE,
 ...
)

Arguments

Details

legendform : example
full : 7.8*x + 6.31
form : a*x+b
nameform : linear a*x+b
name : linear

full can be quite long, especially with Poly45=TRUE!

Value

data.frame with rounded R squared, formulas, and full R^2 and parameters for further use. Rownames are the names (types) of function. Sorted decreasingly by R^2

warning

A well fitting function does NOT imply correct causation!
A good fit does NOT mean that you describe the behaviour of a system adequately!
Extrapolation can be DANGEROUS!
Always extrapolate to see if a function fits the expected results there as well.
Avoid overfitting: Poly45 will often yield good results (in terms of R^2), but can be way overfitted. And outside the range of values, they act wildly.

Note

If you're adjusting the appearance (lwd, lty, col) of single lines, set parameters in the following order:
# 1 linear a*x + b
# 2 quadratic (parabola) a*x^2 + b*x + c
# 3 cubic a*x^3 + b*x^2 + c*x + d
# 4 Polynom 4th degree a*x^4 + b*x^3 + c*x^2 + d*x + e
# 5 Polynom 5 a*x^5 + b*x^4 + c*x^3 + d*x^2 + e*x + f
# 6 logarithmic a*log(x) + b
# 7 exponential a*e^(b*x)
# 8 power/root a*x^b
# 9 reciprocal a/x + b
# 10 rational 1 / (a*x + b)
# 11 exponential 4 Param a*e^(b*(x+c)) + d

Negative values are not used for regressions containing logarithms; with warning.
exp_4par was originally developed for exponential temperature decline in a cup of hot water.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec 2012, updated April and Aug 2013, sept 2015

References

Listed here: https://rclickhandbuch.wordpress.com/rpackages/

See Also

glm , lm , optim

Examples

set.seed(12)
x <- c(runif(100,0,3), runif(200, 3, 25)) # random from uniform distribution
y <- 12.367*log10(x)+7.603+rnorm(300) # random from normal distribution
plot(x,y, xlim=c(0,40))
mReg(x,y) # warning comes from negative y-values (suppress with quiet=TRUE)
# Formula specification:
mReg(Volume~Height, data=trees)
# NA management
x[3:20] <- NA
mReg(x,y)
# Passing arguments to legend:
mReg(x,y, pch=1, legargs=list(x="bottomright", cex=0.7), legendform="form")
mReg(x,y, col=rainbow2(11))
mReg(x,y, extend=0.2) # less empty space around data points
mReg(x,y, nbest=4) # only 4 distributions plotted
mReg(x,y, legargs=list(x=7, y=8, bty="o", cex=0.6)) # Legend position as coordinates
## Not run: # Excluded from Rcmd check (opening external devices)
View(mReg(x,y, Poly45=TRUE, exp_4=TRUE, plot=FALSE)) # exp_4: fit more distributions
## End(Not run)
# optim methods often yield different results, so be careful using this.
# I might insert a possibility to specify initial values for optim.
# 4 Parameters allow several combinations to yield similarly good results!
plot( 0:10, 3.5*exp(0.8*( 0:10 + 2 )) + 15 , type="l")
lines(0:10, 18*exp(0.8*( 0:10 - 2.5e-05)) - 5, col=2)
# okay, different dataset:
x <- c(1.3, 1.6, 2.1, 2.9, 4.4, 5.7, 6.6, 8.3, 8.6, 9.5)
y <- c(8.6, 7.9, 6.6, 5.6, 4.3, 3.7, 3.2, 2.5, 2.5, 2.2)
mReg(x,y, legargs=list(cex=0.7, x="topright"), main="dangers of extrapolation")
points(x,y, cex=2, lwd=2)
# Polynomial fits are good within the data range, but, in this case obviously,
# be really careful extrapolating! If you know that further data will also be low,
# add another point to test differences:
mReg(c(x,11,13,15), c(y,2,2,2), xf="myX", yf="myY", Poly45=TRUE, legendform="name")
points(x,y, cex=2, lwd=2)
# The Polynomials are still very good: they have 5 to 6 Parameters, after all!
# Poly45 is set to FALSE by default to avoid such overfitting.
mReg(x,y, pcol=8, ncol=0) # no return to console
# only plot a subset: best n fits, minimum fit quality, or user selection
mReg(x,y, pcol=8, ncol=2, nbest=4)
mReg(x,y, pcol=8, ncol=2, R2min=0.7)
mReg(x,y, pcol=8, ncol=2, selection=c(2,5,8))
# selecting the fifth degree polynomial activates Poly45 (in the output table)
# Add to axisting plot:
plot(x,y, xlim=c(0,40))
mReg(x,y, add=TRUE, lwd=12:1/2, ncol=0)
# lwd, lty can be vectors of length 12, specifying each line separately.
# Give those in fix order (see section notes), not in best-fit order of the legend.
# The order is Polynomial(1:5), log, exp, power, reciprocal, rational, exp_4_param
# color has to be a vector of 12
# opposedly, lwd and lty are repeated 12 times, if only one value is given
# One more dataset:
j <- c(5,8,10,9,13,6,2) ; k <- c(567,543,587,601,596,533,512)
# Inset from margin of plot region:
mReg(j,k, legargs=list(x="bottomright", inset=.05, bty="o"), legendform="name")
# Legend forms
mReg(j,k, legargs=list(x="bottomright"), legendform="name")
mReg(j,k, legargs=list(x="bottomright"), legendform="form")
mReg(j,k, legargs=list(x="bottomright"), legendform="nameform")
mReg(j,k, legargs=list(x="bottomright"), legendform="full")
## Not run: # Excluded from Rcmd check (long computing time)
# The question that got me started on this whole function...
# exponential decline of temperature of a mug of hot chocolate
tfile <- system.file("extdata/Temp.txt", package="berryFunctions")
temp <- read.table(tfile, header=TRUE, dec=",")
head(temp)
plot(temp)
temp <- temp[-20,] # missing value - rmse would complain about it
x <- temp$Minuten
y <- temp$Temp
mReg(x,y, exp_4=TRUE, selection=11)
# y=49*e^(-0.031*(x - 0 )) + 25 correct, judged from the model:
# Temp=T0 - Te *exp(k*t) + Te with T0=73.76, Tend=26.21, k=-0.031
# optmethod="Nelder-Mead" # y=52*e^(-0.031*(x + 3.4)) + 26 wrong
x <- seq(1, 1000, 1)
y <- (x+22)/(x+123) # can't find an analytical solution so far. Want to check out nls
mReg(x, y, legargs=list(x="right"))
## End(Not run)
# Solitaire Results. According to en.wikipedia.org/wiki/Klondike_(solitaire):
# Points=700000/Time + Score
# I recorded my results as an excuse to play this game a lot.
sfile <- system.file("extdata/solitaire.txt", package="berryFunctions")
solitaire <- read.table(sfile, header=TRUE)
mReg(solitaire$Time, solitaire$Points) # and yes, reciprocal ranks highest! Play Fast!
mReg(solitaire$Time, solitaire$Bonus, xlim=c(50,200), extend=0, nbest=3)
sol <- unique(na.omit(solitaire[c("Time","Bonus")]))
sol
sol$official <- round(700000/sol$Time/5)*5
mReg(sol$Time, sol$Bonus, extend=0, selection=9, col=rep(4,10), legendform="full")
plot(sol$Time, sol$official-sol$Bonus, type="l")
# multivariate regression should be added, too:
sfile <- system.file("extdata/gelman_equation_search.txt", package="berryFunctions")
mv <- read.table(sfile, header=TRUE)
sfile <- system.file("extdata/mRegProblem.txt", package="berryFunctions")
x <- read.table(sfile, header=TRUE)$x
y <- read.table(sfile, header=TRUE)$y
mReg(x,y, digits=6) # all very equal
x2 <- x-min(x)
mReg(x2,y, digits=6) # Formulas are wrong if digits is too low!!
#mReg(x2,y, legendform="full")
# Zero and NA testing (to be moved to unit testing someday...)
mReg(1:10, rep(0,10))
mReg(1:10, c(rep(0,9),NA))
mReg(1:10, rep(NA,10))
mReg(rep(1,10), 1:10)
mReg(rep(0,10), 1:10)
mReg(c(rep(0,9),NA), 1:10)
mReg(rep(NA,10), 1:10)
mReg(1:10, rep(0,10), quiet=TRUE)
mReg(1:10, c(rep(0,9),NA), quiet=TRUE)
mReg(1:10, rep(NA,10), quiet=TRUE)
mReg(rep(1,10), 1:10, quiet=TRUE)
mReg(rep(0,10), 1:10, quiet=TRUE)
mReg(c(rep(0,9),NA), 1:10, quiet=TRUE)
mReg(rep(NA,10), 1:10, quiet=TRUE)

Label date axis

Description

Labels date axes at sensible monthly intervals in the time domain of years to decades.

Usage

monthAxis(
 side = 1,
 grid = FALSE,
 time = NA,
 origin = "1970-01-01",
 mlabels = substr(month.abb, 1, 1),
 yformat = "%Y",
 nmonths = 3,
 nym_half = 3.5,
 nym_none = 5,
 mcex = 0.7,
 ycex = 1,
 mtcl = par("tcl"),
 ytcl = par("tcl") - 1.7,
 mline = -1,
 yline = 0.2,
 las = 1,
 lrange = NA,
 trunc = NA,
 mgp = c(3, 1, 0),
 mt = NULL,
 ml = NULL,
 yt = NULL,
 yl = NULL,
 quiet = FALSE,
 ...
)

Arguments

Value

List with locations of month and year labels and ticks, each a Date vector.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Feb + Dec 2015, Oct 2017

See Also

monthLabs for the numbercrunching itself, timeAxis for shorter or longer time frames, axis.Date with defaults that are less nice.

Examples

set.seed(007) # for reproducibility
timePlot <- function(nydays, start="2013-08-25", ...)
 plot(as.Date(start)+sort(c(0,sample(1:nydays, 50))),
 cumsum(rnorm(51)), type="l", xaxt="n", ann=FALSE, las=1, ...)
timePlot(1100)
monthAxis()
monthAxis(1, nmonths=6, col.axis="red") # 2013 not labeled anymore
monthAxis(side=3, nym_half=2) # if axis > 2 years, label only partially
timePlot(2e3)
monthAxis() # long time series (>nym_none) only have years labeled
monthAxis(side=3, font=2, grid=TRUE)
# vertical lines in graph - now add lines/points
timePlot(900)
monthAxis(side=3, mtcl=0) # no tick lines between months
monthAxis(ycex=1.4, ytcl=2, lwd.ticks=2)
monthAxis(yline=1, col.axis=4, col=4)
monthAxis(mcex=1, col.axis="red", yformat=" ") # no years labeled
timePlot(900)
monthAxis(nmonths=1) # year labeled for short period as well
timePlot(800)
monthAxis()
monthAxis(mgp=c(2,1,0)) # the same. element 2 is relevant here
monthAxis(mgp=c(3,0,0)) # requires change in mline andy yline placement
timePlot(400)
ma <- monthAxis(lwd=3, yl=list(col.axis=3), mlabels=letters[1:12], mcex=1)
abline(v=ma$mtics, col=8) # use output from monthAxis for other functions
timePlot(80)
monthAxis(mlabels=month.abb, mcex=1) # short time series give a warning
timePlot(80, "2013-11-14")
monthAxis(mlabels=month.abb, mcex=1, nmonths=0, quiet=TRUE)
# Time axis instead of date axis:
plot(as.POSIXct(Sys.time()+c(0,2)*360*24*3600), 1:2, xaxt="n")
monthAxis(nmonths=2)
timePlot(800, "2015-01-01")
monthAxis()
timePlot(900, "2015-01-01", xaxs="i")
monthAxis()
timePlot(300, "2015-01-01", xaxs="i")
monthAxis() # if less than a full year is covered, the year label is centered

Nicely spaced labels along a month

Description

Create dates of certain days of the month for labeling

Usage

monthLabs(startyear = 2002, stopyear = 2018, npm = 2, npy = NA)

Arguments

Value

Vector with Dates as returned by as.Date .

Note

Spacing of days is not equal, but set to certain days of the month! This was originally developed for time series movie frames

Author(s)

Berry Boessenkool, berry-b@gmx.de, early 2013

See Also

timeAxis for nice labeling, timeAxis for automatic determination of npm/npy, as.Date , paste

Examples

monthLabs(2014,2014, 3) # 3 days per month
monthLabs(2013,2014, npy=3) # 3 months per year, equally spaced
monthLabs(2014,2014, npy=4) # 4 months per year
# see monthAxis for automatic plot labeling

Moving average

Description

Weighted moving average (running mean) with overlapping windows

Usage

movAv(dat, width = 7, weights = rep(1, width), quiet = FALSE)

Arguments

Details

Width has to be odd, so there is a defined middle point of each window. Even inputs will be changed with a warning (unless quiet=TRUE).
Weights doesn't have to be symmetrical, but is always mapped to the middle of each window!
If there are NAs in the window, the corresponding weight is distributed evenly to the other weights.

Value

Vector of the same length as the original input. Padded with NAs at width/2 margin elements

Note

You can specify just one of weights or width.

Author(s)

Berry Boessenkool, berry-b@gmx.de, ca 2012

See Also

movAvLines , filter , decompose , smooth , loess , rollapply (no overlapping!)

Examples

# general usage -------------------------------------------------------------
set.seed(29); a <- runif(40, 5,50)
data.frame(a, movAv(a))
# final and commencing NAs are kept, middle ones are filled:
a[c(1:10, 18:26, 32:40)] <- NA
data.frame(a, movAv(a))
set.seed(29); a <- runif(60, 5,50)
plot(a, type="o", pch=16, las=1)
lines(movAv(a), col=2, lwd=3) # shows trends, signal in the noise
lines(movAv(a,3), col=4, lwd=3)
lines(movAv(a,15), col=3, lwd=3) # degree of smoothing depends on window width
# Weights:
plot(a, type="o", pch=16, las=1)
lines(movAv(a), col=2, lwd=3) # uniform weight within running window
# Triangular weights react stronger to extrema:
lines(movAv(a, weights=c(1,2,4,6,4,2,1)), col=4, lwd=3)
plot(c(Nile), type="l")
lines(movAv(Nile,20), col=4, lwd=4)
lines(movAv(Nile,21), col=3) # even widths are changed to a higher value
# smoothing intenstiy -------------------------------------------------------
plot(1871:1970, Nile, type="l", col=8)
movAvLines(1871:1970, Nile, lwd=3)
for(i in 1:30*2-1)
 {
 plot(a, type="o", pch=16, las=1, main=paste("moving average, width =", i))
 lines(movAv(a, i), col=2, lwd=4)
 }
# How to lie with moving averages: compare width 29 with 49 - the "trend"
# appears to be in opposite direction! (OK, this is random data anyways).
b <- rep(a, each=10)+runif(600, -10, 20)
plot(b, type="l")
lines(movAv(b), col=2, lwd=4)
lines(movAv(b, 35), col=4, lwd=4)
lines(movAv(b, 101), col=5, lwd=4) # choose width according to scale!
# Deviance from running mean can identify outlier:
nile <- c(Nile)
op <- par(mfrow=c(3,1), mar=c(1,3,2.5,0), cex.main=1, las=1)
plot(nile, type="l", main=c("original Nile data",""), xlab="", xaxt="n")
lines(movAv(nile,5), lwd=2, col=2)
title(main=c("", "5-element running mean (moving average)"), col.main=2)
box("figure")
plot(nile-movAv(nile,5), type="o", pch=16, col=4,
 main="difference ( original data - moving average )", xlab="", xaxt="n")
abline(h=0)
box("figure")
par(mar=c(3,3,1,0))
hist(nile-movAv(nile,5), breaks=25, xlim=c(-500,500), col=4, main="Deviances")
abline(v=0, lwd=5) # the deviances are pretty symmetric.
# If this were shifted more strongly to the left, we could say:
# movav(5) overestimates minima more than it underestimates maxima
# This would happen if low values peak away further and more shortly
par(op)

Moving average with different window widths

Description

Add moving average lines with different window widths to a plot

Usage

movAvLines(
 x = 1:length(y),
 y,
 widths = c(3, 5, 7, 9, 11, 13),
 weights,
 col = "blue",
 alpha = 0.3,
 add = TRUE,
 las = 1,
 ...
)

Arguments

Author(s)

Berry Boessenkool, berry-b@gmx.de, May 2015

See Also

movAv , addAlpha

Examples

set.seed(42)
movAvLines(y=cumsum(rnorm(50)), add=FALSE, lwd=3)

Prepend spaces before na.strings

Description

Returns a number of useful character strings with varying amount of spaces prepended. It can be used as na.strings=na9() in read.table .

Usage

na9(
 nspace = 5,
 base = c(-9999, -999, -9.99, -9.999),
 sep = c(",", "."),
 digits = 0:4,
 more = NULL,
 ...
)

Arguments

Value

Character strings

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2016

See Also

paste

Examples

na9()
na9(nspace=0, sep=".")
na9(nspace=0, sep=".", more=c(NA,"-"))

Nonrandom character sequence with sample

Description

Find the seed necessary to produce a character sequence by using sample

Usage

nameSample(name, progress = FALSE, estimatetime = nc > 4, continue = FALSE)

Arguments

Value

cat s command into the console that can be copypasted to anyone's R script.

Note

nameSample may take a lot of time, due to nchar^26 possibilities. That's why it warns about strings longer than 5 characters

Author(s)

Berry Boessenkool, berry-b@gmx.de, April 2014

See Also

yearSample to wish a happy new year, set.seed , sample , letters

Examples

## Not run in RCMD check as they're very time consuming
## Not run: 
# nameSample("berry") # After that, you can send the result to colleagues:
# Kind regards from
set.seed(1248272); paste(sample(letters,5,TRUE), collapse='')
# calculation time
system.time(nameSample("ber"))
system.time(nameSample("ber", FALSE))
# let <- sapply(1:4, function(n) apply(replicate(n, letters[sample(15)]), 1, paste, collapse=""))
# calctime <- sapply(let, function(x) system.time(nameSample(x, progress=F))[3])
# write.table(calctime, "calctime_nameSample.txt")
ctfile <- system.file("extdata/calctime_nameSample.txt", package="berryFunctions")
ctfile2 <- system.file("extdata/calctime_nameSample2.txt", package="berryFunctions")
calctime <- read.table(ctfile)
# regression result in hours:
expReg(nchar(rownames(calctime))-8, calctime[,1], xlim=c(1,7), ylim=c(-3,4),
 predict=7)/3600
# For my 3 times faster computer:
calctime <- read.table(ctfile2)
expReg(nchar(rownames(calctime))-8, calctime[,1], xlim=c(1,7), ylim=c(-3,4),
 predict=c(4,7))/c(1,3600)
# 4 sec for 4 letters are expected to be 10 hours for 7 letters...
## End(Not run)

Create new filename if file already exists

Description

Check if files already exist and append _1 or _2, etc to the filename if needed, thereby giving useful messages.

Usage

newFilename(
 filename,
 ignore = FALSE,
 overwrite = FALSE,
 tellignore = TRUE,
 pre = "",
 mid = "\n",
 end = "",
 quiet = FALSE,
 ntrunc = 3
)

Arguments

Value

newFilename returns the input with an added "_n" in the filename for each file that already existed.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Oct 2016 + Jan 2017

See Also

file.exists

Examples

fns <- c("dummy1", "dummy2.txt", "berryFunctions.Rproj",
 "README.md", "dummy2.dummy", "DESCRIPTION", "dummy4.R", "dummy5")
newFilename(fns)
newFilename(fns, ignore=TRUE)
newFilename(fns, ignore=rep(c(TRUE,FALSE), each=4) )
newFilename(fns, ignore=rep(c(TRUE,FALSE), each=4), tellignore=FALSE)
newFilename(fns, ntrunc=2)
newFilename(fns, overwrite=TRUE, ign=c(TRUE,TRUE,rep(FALSE,6)))
newFilename("README.md")
newFilename("dummy", mid=" ") # no line break

Normal density plot

Description

Nice plot of normal density distribution

Usage

normPlot(
 mean = 0,
 sd = 1,
 width = 3,
 lines = TRUE,
 quant = TRUE,
 fill = addAlpha("blue", c(2:6, 7:2)/10),
 cumulative = TRUE,
 las = 1,
 main = paste("Normal density with\nmean =", signif(mean, 2), "and sd =", signif(sd,
 2)),
 ylim = lim0(dnorm(mean, mean, sd)),
 ylab = "",
 xlab = "",
 type = "n",
 lty = 1,
 col = par("fg"),
 mar = c(2, 3, 3, 3),
 keeppar = FALSE,
 ...
)

Arguments

Details

This function finds some nice defaults for very quickly plotting a normal distribution by just specifying mean and sd.

Value

None. Used for plotting.

Author(s)

Berry Boessenkool, berry-b@gmx.de, July 2014

See Also

betaPlot , dnorm , https://cran.r-project.org/package=denstrip, https://cran.r-project.org/view=Distributions

Examples

normPlot()
normPlot(81.7, 11.45)
normPlot(180, 11, quant=FALSE, width=2)

Test values for normality of distribution

Description

Normality test: histogram with corresponding normal density distribution line, as well as p values for various normality tests.
The package nortest is needed for full functionality.

Usage

normTest(
 v,
 plot = TRUE,
 main = deparse(substitute(v)),
 breaks = 15,
 col = "tan",
 legend = TRUE,
 ...
)

Arguments

Value

named vector of p values

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sep 2021

See Also

ks.test , shapiro.test

Examples

normTest(rnorm(1000, mean=97, sd=8.9))
# if p > 0.05: accept Nullhypothesis that data are normally distributed.
normTest(rexp(30))
if(requireNamespace("pbapply")) replicate <- pbapply::pbreplicate
par(mfcol=c(7,6), mar=c(0,0.1,1,0.1), oma=c(2.5,1.5,2.5,0), las=1)
invisible(sapply(c("rnorm(10)", "rnorm(100)", 
 "rexp(10)", "rexp(100)", 
 "runif(10)", "runif(100)"), function(vv){
 check <- replicate(1e2, normTest(v=eval(str2lang(vv)), plot=FALSE))
 for(n in rownames(check)) 
 {hist(check[n,], breaks=seq(0,1,len=20), axes=FALSE, ylab="", xlab="", main="")
 if(n=="ShapiroWilk") title(main=vv, line=1, xpd=NA)
 if(vv=="rnorm(10)") title(ylab=n, line=0, xpd=NA)
 abline(v=0.05, col="blue", lwd=1, xpd=TRUE)
 }
 axis(1, at=0:1)
 }))
title(main="P values of tests for normality with", outer=TRUE, line=1.5)

normalizePath Cross Platform

Description

normalizePath Cross Platform: Returns absolute path even for not (yet) existing files even on Linux. On Windows, this is the default behaviour.

Usage

normalizePathCP(path, winslash = "/", mustWork = FALSE)

Arguments

Value

path character string(s)

Author(s)

Berry Boessenkool, berry-b@gmx.de, Nov 2017

See Also

normalizePath , newFilename

Examples

normalizePath ("doesnotexist.file", mustWork=FALSE) # on unix not full path
normalizePathCP("doesnotexist.file") # full path on all platforms
normalizePath ("../doesnotexist.file", mustWork=FALSE)
normalizePathCP("../doesnotexist.file")
 
checknp <- function(a,b=a,d=getwd())
 {
 aa <- normalizePathCP(a)
 bb <- if(d=="") b else paste0(d,"/",b)
 if(aa != bb) stop("'", a, "' -> '", aa, "', should be '",bb, "'.")
 aa
 }
checknp("notexist.file")
checknp("../notexist.file", "notexist.file", dirname(getwd()))
checknp("notexistfolder/notexist.file")
#checknp("/home/berry/notexist.file", d="") # fails on windows
#checknp("S:/Dropbox/notexist.file",d="") # fails on linux

open file in default application

Description

open a file using system2 with command based on operating system. Tries to open the file with the program associated with its file extension.
See openPDF to open files with sumatraPDF.

Usage

openFile(file, ...)

Arguments

Value

Result of try(system2, ...), invisibly

Author(s)

Berry Boessenkool, berry-b@gmx.de, Aug 2017

References

https://askubuntu.com/questions/15354, https://apple.stackexchange.com/questions/212583

See Also

openPDF , system2 , checkFile

Examples

## Not run: # excluded from CRAN checks, file opening not wanted
openFile("README.md")
openFile("Tests.R")
openFile(c("README.md","Tests.R"))
is.error(openFile("dummydummydoesntexist.R"), TRUE, TRUE)
openFile(tempdir())
## End(Not run)
#' # To open folders (not files) with system2:
# "nautilus" on linux ubuntu
# "open" or "dolphin" on mac
# "explorer" or "start" on windows
# But open / xdg-open seems to work as well

open PDF file with sumatra viewer

Description

open PDF file with SumatraPDF viewer, which does not lock files against being edited. It is only available on windows, but comes bundled with Rstudio. If the executable is not found, openFile is called instead.
I suggest to first change some settings with sumatraInitialize().

Usage

openPDF(
 file,
 rspath = sub("rstudio.exe$", "", Sys.getenv("RSTUDIO_DESKTOP_EXE")),
 sumexe = NULL,
 ...
)

Arguments

Value

Result of try(system, ...), invisibly

Author(s)

Berry Boessenkool, berry-b@gmx.de, May 2020

See Also

openFile for the default opening programm
sumatraInitialize for nice Sumatra default settings
pdfpng to create PDFs and PNGs simultaneously.

Examples

# only desired in an interactive session, not on CRAN checks
# openPDF( system.file("extdata/Anhang.pdf", package="berryFunctions") )
# openPDF( system.file(c("extdata/Anhang.pdf", "extdata/RainfallStationsMap.pdf"), 
# package="berryFunctions") )

Overwrite argument default lists

Description

Second ellipsis (three dots) passed to particular functions, combining default and user-specified argument lists.
owa can be used in functions that pass argument lists separately to several functions. Internal defaults can be set per function (eg. one list for plot and one for legend ).
You can specify which defaults can be overwritten and which should be left unchanged. See the example section on how to implement this.

Usage

owa(d, a, ..., quiet = FALSE)

Arguments

Value

Always a list, disregarding list/vector mode of input

Author(s)

Berry Boessenkool, berry-b@gmx.de, Early 2014, Update Oct 2016

References

https://stackoverflow.com/questions/3057341
https://stackoverflow.com/questions/5890576
https://stackoverflow.com/questions/4124900
https://stackoverflow.com/questions/16774946

Examples

# The motivation behind owa:
testfun <- function(...) {plot(7:11, ...) ; legend("top", "some text", ...)}
testfun()
is.error( testfun(type="o") , tell=TRUE)
# Error: legend doesn't have the argument 'type'!
# How to solve this:
testfun <- function(legargs=NULL, ...) # dots passed to plot
 {
 plot(7:11, ...)
 legend_defaults <- list(x="top", lty=1, col="red", legend="owa rocks!")
 # combine defaults and user specified into final argument list,
 # overwrite arguments ('owa') in the default list unless protected:
 legend_final <- owa(d=legend_defaults, a=legargs, "col", "lwd")
 do.call(legend, args=legend_final)
 }
testfun()
testfun(type="l", col="blue")
testfun(type="o", legargs=list(col="blue", pch=16, lty=3) )
# color in legargs is ignored, as it is defined as unchangeable
#----------------------------------------------------------------------------
# basic tests of owa itself:
d <- list(bb=1:5, lwd="was d", lty=1, col="gray")
a <- list(bb=3, lwd=5, lty="from a", wachs="A")
owa(d,a) # all changed, wachs added
owa(d, a, "bb", "lwd") # lty is overwritten, bb and lwd are ignored
owa(d, NULL, "bb", "wachs") # NULL is a good default for argument lists
owa(d, c(HH=2, BBB=3) ) # vectors and lists are all converted to lists
owa(d, list(lwd=5, bb=3, lty="1") ) # order of arguments doesn't matter
owa(d, a, c("bb","lwd") ) # unchangeable can also be a named vector
owa(d, a, c("bb","lwd"), c("lty","dummy") ) # or several vectors

Base path of package

Description

Base path of package (with DESCRIPTION file), per default at current getwd. Derived from devtools::package_file

Usage

packagePath(path = ".", file = NULL, warnonly = FALSE)

Arguments

Value

Path character string

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sep 2017

See Also

getwd

Examples

# packagePath() # may fail on cran checks

Arrange panels in a multipanel plot (par mfrow)

Description

Returns the optimum where deviation from ncol=nrow and number of panels left empty have a minimum sum.

Usage

panelDim(
 n,
 weight = c(1, 1),
 maxempty = round(n/4),
 landscape = FALSE,
 all = FALSE,
 plot = FALSE,
 mfcol = FALSE
)

Arguments

Details

There probably are other ways to find the optimal way to arrange panels, so if you find anything, please give me a hint.

Value

vector with 2 values, can be passed to par(mfrow), or a data.frame if all=TRUE.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec 2014, Jan 2015

See Also

groupHist , which is using this function

Examples

# basic usage
op <- par(mfrow=panelDim(6))
for(i in 1:6) plot(i:10, main=i)
par(op)
# Adcanced options
panelDim(7)
g <- panelDim(7, all=TRUE)
panelDim(7, plot=TRUE)
panelDim(7, plot=TRUE, all=TRUE) # compares 4 best options
panelDim(26, all=TRUE)
panelDim(26, plot=TRUE, all=TRUE) # compares 4 best options
panelDim(26, plot=TRUE, all=TRUE, weight=c(3,0) ) # fewer empty panels
# effect of maxempty:
panelDim(13, plot=TRUE) # 4 x 4
panelDim(13, maxempty=2, plot=TRUE) # 5 x 3
panelDim(13, maxempty=1, plot=TRUE) # 7 x 2
panelDim(13, maxempty=0, plot=TRUE) # 13 x 1
panelDim(45, plot=TRUE) # no empty panels
# focus on aspect ratio of each panel (make it as square as possible):
panelDim(45, weight=c(1,3), plot=TRUE) # better aspect for each panel
# Orientation of plot:
panelDim(45, plot=TRUE) # good for portrait orientation of plot
panelDim(45, landscape=TRUE, plot=TRUE) # better if plot width > height
## Not run: 
## Rcmd check --as-cran doesn't like to open external devices,
## so this example is excluded from running in the checks.
# plot of several n with defaults
dev.new(record=TRUE)
for(i in 1:50) panelDim(i, plot=TRUE)
## End(Not run)

cross-platform parallel processing with progbar

Description

Call pbapply::pbsapply with nc default at number of cores available. Also, this works on Windows directly. Note this throws an error on unix systems, unlike parallel::mclapply

Usage

par_sapply(
 X,
 FUN,
 nc = NULL,
 pb = TRUE,
 simplify = TRUE,
 export_objects = NULL,
 ...
)

Arguments

Value

vector/matrix, list if simplify=FALSE

Author(s)

Berry Boessenkool, berry-b@gmx.de, Apr 2021

See Also

pbapply::pbsapply , sapply , parallelCode

Examples

## Not run: # Suppressed on CRAN checks as this is time-consuming
fun <- function(x) mean(rnorm(1e7))
pbapply::pbsapply(1:20, fun)
 par_sapply(1:20, fun)
 #sapply(1:20, fun)
## End(Not run)
inp_chr_named <- list(first=1, second=2, third="3", fourth=4, fifth="5")
inp_num_named <- lapply(inp_chr_named, as.numeric)
inp_chr_none <- unname(inp_chr_named)
inp_num_none <- unname(inp_num_named)
if(FALSE){#intentional errors, don't run
par_sapply(inp_chr_named, log) # fails with name(s)
par_sapply(inp_num_named, log) # works, has names
par_sapply(inp_chr_none, log) # fails with index number (s)
par_sapply(inp_num_none, log) # no names, like in sapply
}

code chunk for parallelization

Description

message a code chunk template for parallelization with progress bar on windows. On Linux, just use pblapply(X, cl=8, FUN=fun)

Usage

parallelCode()

Author(s)

Berry Boessenkool, berry-b@gmx.de, Aug 2017

See Also

par_sapply

Examples

parallelCode()

Create pdf and png graph

Description

Create both a pdf and a png file with a graph, with custom size default values.
pdfpng tries to open the PDF file (through openPDF ) with SumatraPDF viewer, which does not lock files against being edited.
See sumatraInitialize for nice Sumatra default settings.

Usage

pdfpng(
 expr,
 file,
 pdf = TRUE,
 png = TRUE,
 overwrite = FALSE,
 open = TRUE,
 quiet = FALSE,
 tracewarnmes = !quiet,
 filargs = NULL,
 width = 7,
 height = 5,
 units = "in",
 res = 500,
 seed = runif(1, -1e+09, 1e+09),
 envlevel = 1,
 pdfargs = NULL,
 pngargs = NULL,
 ...
)

Arguments

Value

file paths, invisible

Author(s)

Berry Boessenkool, berry-b@gmx.de, March 2017

See Also

pdf , png

Examples

## Not run: # excluded from CRAN checks, file opening not wanted
pdfpng( plot(rnorm(500), type="l") , file="dummyplot", png=FALSE)
pdfpng({par(bg=8, las=1); plot(cumsum(rnorm(500)), type="l")},
 file="dummyplot", res=100, open=FALSE)
pdfpng({par(bg=8, las=1); plot(cumsum(rnorm(500)), type="l")},
 file="dummyplot", overwrite=c(TRUE,FALSE), open=FALSE)
# Nesting of functions is possible:
a <- list( cumsum(rnorm(2000)), cumsum(rnorm(20)) )
pdfpng(plot(a[[1]]), file="dummyplot", overwrite=TRUE, open=FALSE)
bfun <- function(b) pdfpng(plot(b,type="l"), file="dummyplot", 
 overwrite=TRUE, open=FALSE)
cfun <- function(c) bfun(c)
bfun(a[[1]])
sapply(a, function(d) cfun(d))
pdfpng(plot(-10:100, log="y"), "dummyplot",overwr=TRUE,png=FALSE, open=FALSE)
pdfpng({plot(1); plot(dummyobject)}, "dummyplot", overwrite=TRUE, 
 png=FALSE, open=FALSE)
unlink("dummyplot.pdf") ; unlink("dummyplot.png") ; unlink("dummyplot_1.png")
## End(Not run)

create leaflet popup box info

Description

combine data.frame columns into a leaflet popup-box compatible format

Usage

popleaf(
 df,
 sel = colnames(df),
 truncate = NULL,
 tstring = "[...]",
 exclude_geometry = TRUE,
 na.rm = FALSE
)

Arguments

Value

Vector with character strings

Author(s)

Berry Boessenkool, berry-b@gmx.de, Apr 2017

See Also

paste

Examples

dat <- data.frame(a=14:16, b=letters[14:16], c=LETTERS[14:16],
 lat=c(52.58,53.45,52.4), lon=c(6.34,7.23,13.05))
popleaf(dat)
dat$display <- popleaf(dat, 1:4)
## Not run: # Excluded from CRAN checks
library(leaflet)
leaflet(dat) %>% addTiles() %>% addCircleMarkers(~lon, ~lat, popup=~display)
## End(Not run)
dat[1,1] <- "Very long string I'd rather have truncated"
popleaf(dat, 1:3)
popleaf(dat, 1:3, truncate=16)
popleaf(dat, 1:3, truncate=16, tstring="--")

Truncated pretty breakpoints

Description

pretty with no values outside of x range

Usage

pretty2(x, n = 5, force = FALSE, ...)

Arguments

Details

calculates pretty(x), then removes the values that do not lie within range(x).
If force=TRUE, range(x) is reduced step by step in a while loop until the condition is met. This is useful if you want exactly 2 labels on an axis . In order not to get stuck, the outer values are taken if there are more than n values within range(x).

Author(s)

Berry Boessenkool, berry-b@gmx.de, Aug 2014

See Also

pretty , logVals

Examples

k <- c(135, 155, 120, 105, 140, 130, 190, 110)
range(k)
pretty(k)
pretty2(k)
pretty(c(0.2, 0.9), n=2)
pretty2(c(0.2, 0.9), n=2)
pretty2(c(0.2, 0.9), n=2, force=TRUE)

Quantile bands

Description

Quantile bands with optional smoothing, e.g. for visualizing simulations

Usage

quantileBands(
 mat,
 x = 1:ncol(mat),
 col = rgb(0, 0, 1, alpha = c(0.5, 0.7)),
 add = FALSE,
 main = "Quantile Bands",
 ylab = "",
 xlab = "",
 probs = 0:4/4,
 na.rm = FALSE,
 type = 7,
 smooth = NA,
 medargs = NULL,
 meanargs = NULL,
 txi,
 textargs = NULL,
 ...
)

Arguments

Value

Quantiles of each column, invisible. Smoothed if smooth is given!

Note

This is the first version and is not tested very well yet.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sept 2014

See Also

quantile , quantileMean , ciBand , polygon , https://cran.r-project.org/package=fanplot

Examples

neff <- t(replicate(n=30, sapply(1:400, function(nn) max(rnorm(nn))) ))
qB <- quantileBands(neff, x=1:400)
qB[,1:9]
quantileBands(neff, smooth=19, meanargs=list(col=2), txi=NA)
library(RColorBrewer)
quantileBands(neff, smooth=35, ylab="max of rnorm(n)",
 xlab="sample size (n)", probs=0:10/10, col=brewer.pal(5,"BuGn"),
 medargs=list(lwd=2), meanargs=list(col=2, lty=1), txi=c(40,50,60),
 main="Maximum is an unsaturated statistic:\n it rises with sample size")
neff2 <- t(replicate(n=50, sapply(1:400, function(nn) mean(rnorm(nn))) ))
quantileBands(neff2, x=1:400, smooth=35, ylab="mean of rnorm(n)",
 xlab="sample size (n)", probs=0:10/10, col=brewer.pal(5,"BuGn"),
 txi=c(40,50,60), textargs=list(col="yellow"), medargs=list(lwd=2),
 meanargs=list(col=2, lty=1), main="Mean converges to true population mean")

Average of R's quantile methods

Description

Weighted average of R's quantile methods

Usage

quantileMean(
 x,
 probs = seq(0, 1, 0.25),
 weights = rep(1, 9),
 names = TRUE,
 truncate = 0,
 ...
)

Arguments

Details

weights are internally normalized to sum 1

Value

numeric named vector, as returned by apply

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sept 2014

See Also

quantile

Examples

exDat <- rnorm(30,sd=5)
quantile(exDat, probs=c(0.9, 0.99), type=1)
quantile(exDat, probs=c(0.9, 0.99), type=2)
round( sapply(1:9, function(m) quantile(exDat, probs=0.9, type=m)) , 3)
# and now the unweighted average:
quantileMean(exDat, probs=c(0.9, 0.99))
quantileMean(exDat, probs=0.9)
# say I trust type 2 and 3 especially and want to add a touch of 7:
quantileMean(exDat, probs=c(0.9, 0.99), weights=c(1,5,5,0,1,1,3,1,1))
# quantile sample size dependency simulation:
qbeta(p=0.999, 2, 9) # dist with Q99.9% = 0.62
betaPlot(2, 9, cumulative=FALSE, keeppar=TRUE)
abline(v=qbeta(p=0.999, 2, 9), col=6, lwd=3)
qm <- function(size) quantileMean(rbeta(size, 2,9), probs=0.999, names=FALSE)
n30 <- replicate(n=500, expr=qm(30))
n1000 <- replicate(n=500, expr=qm(1000))
lines(density(n30)) 
lines(density(n1000), col=3) 
# with small sample size, high quantiles are systematically
# underestimated. for Q0.999, n must be > 1000
## Not run: 
# #Excluded from CRAN Checks because of the long computing time
# Parametrical quantiles can avoid sample size dependency!
library2("extremeStat")
library2("pbapply")
dlq <- distLquantile(rbeta(1000, 2,9), probs=0.999, list=TRUE, gpd=FALSE)
plotLquantile(dlq, nbest=10) # 10 distribution functions
select <- c("wei","wak","pe3","gno","gev","gum","gpa","gam")
# median of 10 simulations:
nsim <- 10 # set higher for less noisy image (but more computing time)
qmm <- function(size, truncate=0) median(replicate(n=nsim,
 expr=quantileMean(rbeta(size, 2,9), probs=0.999, names=FALSE, 
 truncate=truncate) ))
pqmm <- function(size, truncate=0) median(replicate(n=nsim,
 expr=mean(distLquantile(rbeta(size, 2,9), probs=0.999, selection=select,
 progbars=FALSE, time=FALSE, truncate=truncate, gpd=FALSE, 
 weighted=FALSE, empirical=FALSE, ssquiet=TRUE)[1:8, 1]) ))
 
n <- round( logSpaced(min=10, max=1000, n=15, base=1.4, plot=FALSE) )
medians_emp <- pbsapply(n, qmm) # medians of regular quantile average
# with truncation, only top 20% used for quantile estimation (censored quant):
medians_emp_trunc <- sapply(n, qmm, truncate=0.8) 
# medians of parametrical quantile estimation
medians_param <- pbsapply(n, pqmm) # takes ~60 secs
medians_param_trunc <- pbsapply(n, pqmm, truncate=0.8)
plot(n, medians_emp, type="l", ylim=c(0.45, 0.7), las=1)
abline(h=qbeta(p=0.999, 2, 9), col=6) # real value
lines(n, medians_emp_trunc, col=2) # don't help!
# In small samples, rare high values, on average, simply do not occur 
lines(n, medians_param, col=4) # overestimated, but not dependent on n
# with truncation, only top 20% used for quantile estimation
lines(n, medians_param_trunc, col="orange", lwd=3) # much better!
## End(Not run)

Rainbow from blue to red

Description

Reversed rainbow with different defaults, resulting in a color vector from blue (good) to red (bad)

Usage

rainbow2(n = 10, s = 1, v = 1, start = 0, end = 0.7, alpha = 1)

Arguments

Value

A character vector of color names.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sept 2014

See Also

seqPal for a better palette, rainbow

Examples

plot(1:10, pch=16, cex=2, col=rainbow2(10))

Remove white spaces from strings

Description

Remove leading and/or trailing white space from character strings

Usage

removeSpace(x, begin = TRUE, end = TRUE, all = FALSE, ...)

Arguments

Value

Character string (vector)

Note

If all arguments are FALSE, the string is returned unchanged.
Not extensively tested yet, please mail me any problems...

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec 2014

See Also

sub , trimws since R 3.2.0 (April 2015)

Examples

s <- c("space at end ", " white at begin", " both ", " special ^ ")
removeSpace(s)
trimws(s)
# To add space, use:
x <- c("ab","abcde")
format(x)
format(x, justify="centre")
format(x, width=9)

shift and scale a vector

Description

rescale a numeric vector: map values linearly onto a given range

Usage

rescale(x, from = 0, to = 1)

Arguments

Value

numeric vector, rescaled onto output range

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2016

References

https://stackoverflow.com/a/18303620

See Also

scales::rescale

Examples

rescale(10:15, 135, 200)
rescale(10:15, 200, 135)
rescale(10:15, to=c(1,5))
values <- rbeta(1e3, shape1=4, shape2=35)
hist(rescale(values, 135, 200), breaks=25, col=3)

Round numbers with leading and trailing zeros

Description

Round numbers and add leading + trailing zeros

Usage

round0(
 x,
 digits = 0,
 pre = 2,
 width = digits + pre + ifelse(digits == 0, 0, 1),
 flag = 0,
 ...
)

Arguments

Value

Character string vector

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jun 2017

See Also

formatC , sprintf

Examples

round0( pi*10^(-3:5), 2)
stopifnot(round0(17.3, 2) == "17.30")
round0(7.3)
round0(c(7.3,777.1234), 2)
round0(c(0.2,7.3,12.8), 2, pre=1)
round0(c(0.2,7.3,12.8), 1, pre=3, flag="") # spaces instead of zeros

Rectangles with rounded corners

Description

Draw rectangles with rounded corners via polygon

Usage

roundedRect(
 xleft,
 ybottom,
 xright,
 ytop,
 rounding = 0.25,
 bothsame = TRUE,
 aspcorrect = bothsame,
 devcorrect = bothsame,
 corfactor = 1.3,
 factorpoints = FALSE,
 corners = 1:4,
 npoints = 200,
 plot = TRUE,
 ...
)

Arguments

Value

Final coordinates, invisible

Author(s)

Berry Boessenkool, berry-b@gmx.de, Dec 2017

See Also

textField

Examples

plot(1:10) ; rect(4,2,7,8, border=8)
roundedRect(4,2,7,8, rounding=0.1)
roundedRect(4,2,7,8, rounding=0.25) # default
roundedRect(4,2,7,8, rounding=0.5)
roundedRect(4,2,7,8, rounding=-0.1, border="red")
roundedRect(4,2,7,8, rounding=1.1, border="blue")
roundedRect(2,2,8,4, rounding=0.5) # in long boxes, 0.5 is max
roundedRect(2,2,8,4, rounding=0.5, bothsame=FALSE, corfactor=1, border=3)
plot(1:10) ; rect(4,2,7,8, border=8)
roundedRect(4,2,7,8, corners=c(2,4))
plot(1:10, asp=1) ; rect(4,2,7,8, border=8)
roundedRect(4,2,7,8)
roundedRect(4,2,7,8, aspcorrect=FALSE, border="red") # results depend on asp
plot(1:10, asp=1.5) ; rect(4,2,7,8, border=8)
roundedRect(4,2,7,8)
roundedRect(4,2,7,8, aspcorrect=FALSE, border="red") # results depend on asp
plot(1:10, asp=1) ; rect(4,2,7,8, border=8)
roundedRect(4,2,7,8) # difference only visible if rect is clearly not a square:
roundedRect(4,2,7,8, bothsame=FALSE, border="red")
roundedRect(4,2,7,8, bothsame=FALSE, aspcorrect=TRUE, border="blue")
## Not run: # aspect correction factor determination
rrtest <- function(...) roundedRect(10,0.5, 35,15, border=2, factorpoints=TRUE)
pdfpng({plot(1:40 ); rrtest();
 plot(1:40, ylim=c(0,15) ); rrtest();
 plot(1:40, ylim=c(0,15), asp=1); rrtest();
 roundedRect(2,0, 8,15, factorpoints=TRUE);
 roundedRect(15,10, 25,16, npoints=200)}, 
 file="dummytest", png=F, overwrite=T)
## End(Not run)

Label axis with typical running times

Description

Label a numerical axis (in minutes) with time units that are typical for running times (10 sec intervals)

Usage

runAxis(t = 3 * 60, int1 = 10, int2 = 5, side = 1, linarg = NULL, ...)

Arguments

Value

List with the positions and labels

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jun 2016

See Also

logAxis , monthAxis

Examples

plot(1:200, xaxt="n")
runAxis(t=200, int1=20, int2=10)

Run code in several R versions

Description

Run code / script in several local R versions

Usage

runRversions(
 scpt = NULL,
 expr = NULL,
 path = "C:/Program Files/R/",
 vrns = dir(path, pattern = "R-"),
 exec = "/bin/Rscript.exe"
)

Arguments

Value

Results from each run

Author(s)

Berry Boessenkool, berry-b@gmx.de, May 2022

See Also

help

Examples

tfile <- tempfile(fileext=".R")
cat(
'trace <- function() paste(sapply(sys.calls(),function(x)
 strsplit(deparse(x),"(", fixed=TRUE)[[1]][1]), collapse=" -> ")
lower <- function(a) {message(trace(), " - msg with ", a+10); a}
upper <- function(b) lower(b+5)
upper(3)', file=tfile)
# Don't actually run with example testing
# out <- source(tfile) ; out$value # message + output 8
# runRversions(tfile)
# runRversions(expr=5+7)

runnning time conversion

Description

display runnning times in useful units

Usage

runTime(d, t)

Arguments

Value

list with time elements

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jun 2020

See Also

runAxis

Examples

runTime(d=3.6, t="15:40")
runTime(d=3.6, t="15:10")
runTime(d=3.6, t="14:50")

Seasonality analysis

Description

Examine time series for seasonality of high (low) values

Usage

seasonality(
 dates,
 values,
 data,
 drange = NA,
 vrange = NA,
 shift = 0,
 janline = TRUE,
 hlines = FALSE,
 nmax = 0,
 maxargs = NULL,
 plot = 1,
 add = FALSE,
 nmin = 100,
 probs = c(0, 25, 50, 75, 95, 99.9)/100,
 width = 3,
 text = TRUE,
 texti = seq(200, 20, length.out = length(probs)),
 textargs = NULL,
 months = substr(month.abb, 1, 1),
 slab = "Month",
 tlab = "Year",
 vlab = NA,
 xlim = NA,
 ylim = NA,
 xaxs = NA,
 yaxs = NA,
 main = "Seasonality",
 adj = 0.2,
 mar = c(3, 3, 4, 1),
 mgp = c(1.7, 0.7, 0),
 keeppar = TRUE,
 legend = TRUE,
 legargs = NULL,
 returnall = FALSE,
 quiet = FALSE,
 ...
)

Arguments

Value

The output is always invisible, don't forget to assign it. If returnall=FALSE: Data.frame with year, number of nonNA entries, max value + doy of annual maxima. Please note that the column year does not match the calendrical year if shift!=0.
if returnall=TRUE: a list with annmax (df from above) as well as:
data: data.frame(doy, values, year) and optionally:
plot1, plot3, plot4, plot5: outputs from colPoints
plot2: output list from spiralDate
and other elements depending on plot type, like data3, data4, probs4, width4.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jul-Oct 2016

See Also

spiralDate , colPoints , https://waterdata.usgs.gov/nwis

Examples

# browseURL("https://nrfa.ceh.ac.uk/data/station/meanflow/39072")
qfile <- system.file("extdata/discharge39072.csv", package="berryFunctions")
Q <- read.table(qfile, skip=19, header=TRUE, sep=",", fill=TRUE)[,1:2]
rm(qfile)
colnames(Q) <- c("date","discharge")
Q$date <- as.Date(Q$date)
Q$discharge[450:581] <- NA
plot(Q, type="l")
seas <- seasonality(date, discharge, data=Q, shift=100, main="NRFA: Thames\nRoyal Windsor Park")
head(seas)
# notice how n for nonmissing values is lower in the first hydrological year,
# which includes parts of two consecutive calendarical years.
# Be careful with your interpretation. This looks normal up to 2007, but then BAM!:
seasonality(date, discharge, data=Q[Q$date<as.Date("2007-07-15"),], plot=3, shift=100, nmax=1)
seasonality(date, discharge, data=Q[Q$date<as.Date("2007-08-15"),], plot=3, shift=100, nmax=1)
# Shift is important. You don't want to have this event included twice:
seasonality(date, discharge, data=Q[850:950,], plot=3, nmax=1, quiet=TRUE, shift=100)
## Not run: # excluded from CRAN checks because it is slow
seasonality(date, discharge, data=Q, plot=2) # most floods in winter
seasonality(date, discharge, data=Q, plot=5, vlab="Dude, look at annual max Q!")
seasonality(date, discharge, data=Q, plot=5, shift=100)
s <- seasonality(date, discharge, data=Q, plot=4, shift=100, width=3, returnall=TRUE)
str(s, max.lev=1)
seasonality(date, discharge, data=Q, plot=3:4, add=0:1, ylim=lim0(400), shift=117)
seasonality(date, discharge, data=Q, plot=4, add=TRUE, lwd=3, shift=117, width=3)
## End(Not run)
## Not run: 
dev.new(noRStudioGD=TRUE, record=TRUE) # large graph on 2nd monitor
par(mfrow=c(2,2))
seasonality(date, discharge, data=Q, plot=(1:5)[-4], shift=100)
seasonality(date, discharge, data=Q, plot=(1:5)[-4], lwd=2)
seasonality(date, discharge, data=Q, plot=(1:5)[-4], nmax=1, shift=100)
seasonality(date, discharge, data=Q, plot=(1:5)[-4], col=divPal(100, ryb=TRUE))
dev.off()
## End(Not run)

Sequential color palette

Description

Sequential color palette from yellow to blue or custom colors.

Usage

seqPal(
 n = 100,
 reverse = FALSE,
 alpha = 1,
 extr = FALSE,
 yb = FALSE,
 yr = FALSE,
 gb = FALSE,
 b = FALSE,
 colors = NULL,
 logbase = 1,
 ...
)

Arguments

Value

Character string vector with color names

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2016

See Also

showPal , divPal , catPal , addAlpha , colorRampPalette , package RColorBrewer

Examples

plot(rep(1,12), pch=16, cex=5, col=seqPal(12), xaxt="n")
showPal()
# nonlinear color scale (use colPoints + see classify for more options):
v <- rescale(volcano^30)
image(v, col=seqPal(1000), asp=1); colPointsLegend(v, nbins=1000)
image(v, col=seqPal(1000, logbase=1.007), asp=1)
colPointsLegend(v, col=seqPal(1000, logbase=1.007))
plot( rep(1, 1000), pch=15, cex=3, col=seqPal(1000), ylim=c(0.99, 1.01), ylab="logbase", las=1)
for(b in seq(0.99, 1.01, len=30))
 points(rep(b, 1000), pch=15, cex=1, col=seqPal(1000, logbase=b))

seq with a range argument

Description

sequence given by range or vector of values.

Usage

seqR(range, from = NA, to = NA, extend = 0, warn = TRUE, ...)

Arguments

Value

Numeric vector.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Feb 2014

See Also

seq , range , https://web.archive.org/web/20190107005108/https://r.789695.n4.nabble.com/seq-range-argument-td4684627.html

Examples

seqR(range=c(12,6), by=-2)
m <- c(41, 12, 38, 29, 50, 39, 22)
seqR(m, len=6)
# Takes min and max of range if the vector has more than two elements.
seqR(range=c(12,6), by=-2, extend=0.1)
# internaly calls extendrange with f=extend

show color palettes

Description

Plot examples of the sequential and diverging color palettes in this package. Do not use rainbow: https://eagereyes.org/basics/rainbow-color-map

Usage

showPal(cex = 4, ...)

Arguments

Author(s)

Berry Boessenkool, berry-b@gmx.de, Apr 2016

See Also

seqPal , divPal , catPal , package RColorBrewer, https://www.datawrapper.de/blog/which-color-scale-to-use-in-data-vis/

Examples

showPal()

Inset small plot within figure

Description

multipanel-compatible inset plot with margins, background and border Adding points after smallPlot is called may be incorrect if the original function messes with the graph margins, see the note in colPointsLegend .

Usage

smallPlot(
 expr,
 x1 = 0.05,
 x2 = 0.7,
 y1 = 0.5,
 y2 = 1,
 outer = FALSE,
 xpd = NA,
 mar = c(3, 3, 1, 1),
 mgp = c(1.8, 0.8, 0),
 bg = par("bg"),
 border = par("fg"),
 las = 1,
 resetfocus = TRUE,
 colwise = FALSE,
 ...
)

Arguments

Value

parameters of small plot, invisible.

Warning

setting mai etc does not work!

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2014-2016

See Also

colPointsLegend for an example of usage. subplot in the archived TeachingDemos package and add.scatter for alternative solutions to this problem that do not set margins.

Examples

# Basic usage:
op <- par(no.readonly=TRUE) # original parameters
plot(1:10)
smallPlot(plot(5:1, ylab="Yo man!"), bg="lightgreen" )
smallPlot(plot(5:1), x1=0.5,x2=1, y1=0.3,y2=0.6, bg="yellow", yaxt="n")
# if R warns "figure margins too large", try dragging the plot viewer bigger
# select focus for further add-on's:
points(2, 2, pch="+", cex=2, col=2) # main window
smallPlot( plot(5:1), bg="lightblue", resetfocus=FALSE )
mtext("dude")
points(2, 2, pch="+", cex=2, col=2) # smallPlot window
par(op)
# More par settings:
plot(1:10)
smallPlot( plot(50:1), bg=6, mai=c(0.2, 0.3, 0.1, 0.1)) # screws up
smallPlot( plot(5:1), bg=8, ann=FALSE)
smallPlot(plot(10:50), bg="transparent") # old plot is kept
# complex graphics in code chunks:
plot(1:100)
smallPlot( {plot(5:1, ylab="Rocky label"); lines(c(2,4,3));
 legend("topright", "BerryRocks!", lwd=3) }, bg="white")
# multiple figure situations
par(op)
par(mfcol=c(3,4))
plot(1:10)
plot(1:10)
smallPlot(plot(5:1), bg="lightblue")
plot(1:10)
smallPlot(plot(5:1), bg="bisque", colwise=TRUE) # if mfcol (not mfrow) was set
plot(1:10)
# Outer margins (e.g. to add legends to multi-panel plots)
par(op)
par(mfrow=c(3,2), oma=c(0,5,0,0), mar=c(0,0,1,0)+0.5)
for(i in 0:5*4) image(volcano+i, zlim=c(90,200), xaxt="n", yaxt="n",
 main=paste("volcano +", i))
smallPlot(plot(1:10), x1=0,x2=0.25, y1=0.5,y2=1, bg="green", mar=1)
smallPlot(plot(1:10), x1=0,x2=0.25, y1=0.5,y2=1, bg="green", mar=1, outer=TRUE)
colPointsLegend(90:200, horizontal=FALSE, x1=0, col=heat.colors(12), outer=TRUE,
 labelpos=5, density=FALSE, title="", cex=2, lines=FALSE)
# Further testing with mfrow and mfcol
par(op)
old_plt <- par("plt")
par(mfcol=c(3,4))
new_plt <- par("plt")
plot(1:10)
plot(1:10)
smallPlot(plot(5:1), bg="lightblue", colwise=TRUE)
points(3, 2, pch="+", cex=2, col=2)
plot(1:10) # canot keep mfcol, only mfrow, if colwise is left FALSE.
smallPlot(plot(5:1), bg="bisque", resetfocus=FALSE )
points(3, 2, pch="+", cex=2, col=2)
plot(1:10) # in smallPlot space
par(plt=old_plt)
plot(1:10) # too large
smallPlot(plot(5:1), bg="palegreen")
points(3, 2, pch="+", cex=2, col=2, xpd=NA) # not drawn with default xpd
par(plt=new_plt)
plot(1:10) # canot keep mfcol, only mfrow, if colwise is left FALSE.
smallPlot(plot(5:1), bg="yellow")
points(3, 2, pch="+", cex=2, col=2) # everything back to normal
par(op)
# if layout is used instead of par(mfrow), it is difficult to add graphs
# after using smallPlot
lay <- matrix(c(1,1,1,1,2,2,3,3,2,2,3,3,4,4,5,5), ncol=4)
layout.show(layout(lay))
layout(lay)
plot(1:10)
plot(1:10)
smallPlot(plot(1:10), mar=c(1,3,1,0), x1=0,x2=0.2, y1=0.2,y2=0.8, bg=4, outer=TRUE)
# plot(1:10) # now in a weird location (par("mfrow") is 4x4 after layout)

draw smoothed lines

Description

draw smoothed lines with an n-level partially transparent haze

Usage

smoothLines(x, y, lwd = 1, col = 1, n = 5, alpha = 0.1, ...)

Arguments

Value

none, draws lines

Author(s)

Berry Boessenkool, berry-b@gmx.de, 2011/2012

See Also

lines , col2rgb , rgb

Examples

x <- 1:5 ; y <- c(0.31, 0.45, 0.84, 0.43, 0.25)
plot(x,y)
smoothLines(x,y)
#png("smoothLines.png")
par(mar=c(2,2,2,0)+.5)
plot(1:100, las=1, type="n", main="usage of smoothLines(x,y, lwd, col, n, alpha ...)")
abline(h=0:10*10, v=0:10*10, col=6); box()
for(i in 0:9) { smoothLines(x=c(0,10,25,35), y=c(i*10, i*10, i*10+12, i*10+7), lwd=i)
 text(25, i*10+5, paste("n=5,lwd=", i, sep="")) }
for(i in 0:9) { smoothLines(x=c(40,50,65,75), y=c(i*10, i*10, i*10+12, i*10+7), n=i)
 text(65, i*10+5, paste("n=",i,",lwd=1", sep="")) }
for(i in 0:9/20) { smoothLines(x=c(80,90,105), y=c(i*200, i*200+12, i*200+12), alpha=i)
 text(90, i*200+10, paste("alpha=", i, sep=""), adj=0) }
text(5,10, "default", adj=c(0.5,-0.2)); text(45,50, "default", adj=c(0.5,-0.2))
#dev.off()

sort dataframes by column

Description

sort a data.frame by column - basically just a wrapper for order

Usage

sortDF(df, col, decreasing = TRUE, quiet = FALSE, ...)

Arguments

Value

data.frame

Author(s)

Berry Boessenkool, berry-b@gmx.de, June 2015

See Also

sort , order , insertRows , addRows

Examples

sortDF(USArrests[USArrests$Murder>11,], Assault)
sortDF(USArrests[USArrests$Murder>11,], "Assault") # safer within functions
sortDF(USArrests[USArrests$Murder>11,], 3)

Spiral graph of time series

Description

Plot seasonality of (daily) time series along spiral

Usage

spiralDate(
 dates,
 values,
 data,
 drange = NA,
 vrange = NA,
 months = substr(month.abb, 1, 1),
 add = FALSE,
 shift = 0,
 prop = NA,
 zlab = substitute(values),
 format = "%Y",
 nint = 1,
 ...
)

Arguments

Value

invisible data.frame with date, vals, and the plotting coordinates

Author(s)

Berry Boessenkool, berry-b@gmx.de, May 2016

See Also

seasonality , colPoints , as.Date

Examples

# synthetic seasonal Data
set.seed(42)
fakeData <- data.frame(time = as.Date("1985-01-01")+0:5000,
 vals = cumsum(rnorm(5001))+50 )
fakeData$vals <- fakeData$vals + sin(0:5000/366*2*pi)*max(abs(fakeData$vals))
sp <- spiralDate(time,vals, data=fakeData)
tail(sp)
spiralDate(time,vals, data=fakeData, drange=as.Date(c("1980-01-01", "2004-11-15")), lines=TRUE)
par(mfrow=c(1,3), mar=c(3,3,6,1), mgp=c(2,0.6,0), las=1)
colPoints(time,vals,vals, data=fakeData, col=divPal(100), add=FALSE, legend=FALSE,
 lines=TRUE, pch=NA, nint=1, lwd=2)
title(main="classical time series\nworks badly for long time series\nshows trends well")
seasonality(time, vals, fakeData, col=divPal(100), mar=c(3,3,6,1), legend=FALSE, main="", shift=61)
title(main="yearly time series\nday of year over time\nfails for cyclicity over all year")
spiralDate(time,vals, data=fakeData, col=divPal(100), legargs=list(y1=0.7,y2=0.8))
title(main="spiral graph\nshows cyclic values nicely
 trends are harder to detect\nrecent values = more visual weight")
par(mfrow=c(1,1))
# Data with missing values:
fakeData[1300:1500, 2] <- NA
spiralDate(time,vals, data=fakeData, lines=TRUE) # no problem
# Missing data:
fakeData <- na.omit(fakeData)
spiralDate(time,vals, data=fakeData, lines=TRUE) # problematic for lines
spiralDate(time,vals, data=fakeData, pch=3) # but not for points
## Real data:
#library2("waterData")
#data(exampleWaterData)
#spiralDate(dates, val, data=q05054000LT, lines=TRUE, lwd=3)

Animated spiral graph

Description

Animation of (daily) time series along spiral

Usage

spiralDateAnim(
 dates,
 values,
 data,
 steps = 100,
 sleep = 0,
 progbar = TRUE,
 ...
)

Arguments

Author(s)

Berry Boessenkool, berry-b@gmx.de, May 2016

See Also

spiralDate , linLogHist

Examples

set.seed(42)
x <- as.Date("1985-01-01")+0:5000
y <- cumsum(rnorm(5001))+50
y <- y + sin(0:5000/366*2*pi)*max(abs(y))/2
plot(x,y)
spiralDateAnim(x,y, steps=10, sleep=0.01) # 0.05 might be smoother...
## Not run: 
## Rcmd check --as-cran doesn't like to open external devices such as pdf,
## so this example is excluded from running in the checks.
pdf("spiralDateAnimation.pdf")
spiralDateAnim(x,y, main="Example Transition", col=divPal(100), format=" ")
dev.off()
# if you have FFmpeg installed, you can use the animation package like this:
library2(animation)
saveVideo(spiralDateAnim(x,y, steps=300), video.name="spiral_anim.mp4", interval=0.1,
 ffmpeg="C:/Program Files/R/ffmpeg/bin/ffmpeg.exe")
## End(Not run)

Set useful Sumatra PDF Viewer default settings

Description

Set useful Sumatra PDF Viewer default settings. This will only work on windows. Existing files are renamed ("_old_n" appended), not overwritten.
At the given path with "SumatraPDF.exe", it creates "sumatrapdfrestrict.ini" with SavePreferences = 1 and FullscreenAccess = 1.
At the given roampath, it creates "SumatraPDF-settings.txt" with ShowToc = false and DefaultDisplayMode = single page. UiLanguage gets filled in by Sumatra itself upon first opening.

Usage

sumatraInitialize(
 path = sumatraPaths()[1],
 roampath = sumatraPaths()[2],
 openfolder = TRUE
)

Arguments

Value

path, invisibly

Author(s)

Berry Boessenkool, berry-b@gmx.de, May 2020, Nov 2023

See Also

openPDF
https://www.sumatrapdfreader.org/settings/settings.html
https://github.com/sumatrapdfreader/sumatrapdf/blob/master/docs/sumatrapdfrestrict.ini

Examples

# sumatraInitialize() # only run in interactive mode

Get Sumatra PDF Viewer paths

Description

Get Sumatra paths for sumatraInitialize . This will only work on windows.

Usage

sumatraPaths(open = FALSE)

Arguments

Value

paths

Author(s)

Berry Boessenkool, berry-b@gmx.de, Jan 2024

See Also

sumatraInitialize

Examples

if(.Platform$OS.type == "windows") sumatraPaths()

superposition of discharge, unit hydrograph

Description

superposition of precipitation along unit hydrograph (to simulate Q from P)

Usage

superPos(P, UH)

Arguments

Value

Vector of streamflow values

Author(s)

Berry Boessenkool, berry-b@gmx.de, July 2013

See Also

lsc where superPos is used, unitHydrograph

Examples

N <- c(9,5,2,14,1,3) # [mm/hour]
UH <- c(0, 0.1, 0.4, 0.3, 0.1, 0.1) # [1/h]
sum(UH) # sum must be 1
superPos(N, UH)
# If catchment area = 34 km^2 and precipitation is homogenous:
superPos(N/10^3, UH) * 34*10^6 / 3600 # m^3/s # Add baseflow and you're done...
SP <- data.frame(Prec=c(N, 0,0,0,0,0),
 P1=c( UH*N[1], 0,0,0,0,0),
 P2=c(0, UH*N[2], 0,0,0,0),
 P3=c(0,0, UH*N[3], 0,0,0),
 P4=c(0,0,0, UH*N[4], 0,0),
 P5=c(0,0,0,0, UH*N[5], 0),
 P6=c(0,0,0,0,0, UH*N[6] ),
 runoff=superPos(N, UH))
SP # SuperPosition
SPcum <- t( apply(SP[2:7], 1, cumsum) )
plot(N, type="h", col=2:7, lwd=3, xlim=c(1, 10), ylim=c(30,0), lend=1)
par(new=TRUE)
plot(1, type="n", ylim=c(0, 15), xlim=c(1, 10), axes=FALSE, ann=FALSE)
axis(4, las=1)
polygon(x=c(1:11, 11:1), y=c(SPcum[,1], rep(0, 11)), col=2)
for(i in 2:6) polygon(x=c(1:11, 11:1), y=c(SPcum[,i], rev(SPcum[,i-1])), col=i+1)
text(3.5, 1, "Shape of UH")
lines( superPos(N, UH), lwd=3)
plot(UH, type="o", ylim=lim0(0.4), las=1)
lines(UH, type="h" )
# Effect of distribution of Prec:
P_a <- c(1,2,3,4,5,6,7,8)
P_b <- c(4,4,4,4,4,4,4,4,4)
P_c <- c(8,7,6,5,4,3,2,1)
sum(P_a) ; sum(P_b) ; sum(P_c)
UH_1 <- unitHydrograph(n=2, k=2.3, t=1:25)
UH_2 <- unitHydrograph(n=5.5, k=1.8, t=1:25)
par(mfrow=c(2,3), mar=c(2,3,2,1), las=1)
plot(P_a, type="h", col=3, lwd=3, ylim=c(0,8), main="Precipitation a")
plot(P_b, type="h", col=4, lwd=3, ylim=c(0,8), main="Precipitation b")
plot(P_c, type="h", col=5, lwd=3, ylim=c(0,8), main="Precipitation c")
#
plot(UH_1, type="l", main="unit hydrograph", ylab="",xlab="Zeit")
lines(UH_2, col=2)
text(c(7,14), c(0.12, 0.07), c("UH_1","UH_2"), col=1:2)
abline(h=0)
#
plot( superPos(P=P_a, UH=UH_1), col=3, ylim=c(0,5), type="l",
 main="Discharge", ylab="Q [m^3/s]")
lines(superPos(P=P_b, UH=UH_1), col=4)
lines(superPos(P=P_c, UH=UH_1), col=5)
legend("topright", c("P a","P b", "P c"), title="with UH_1", col=3:5, lty=1)
#
plot( superPos(P=P_a, UH=UH_2), col=3, ylim=c(0,5), type="l",
 main="Discharge", ylab="Q [m^3/s]")
lines(superPos(P=P_b, UH=UH_2), col=4)
lines(superPos(P=P_c, UH=UH_2), col=5)
legend("topright", c("P a","P b", "P c"), title="with UH_2", col=3:5, lty=1)

Table with values with value-dependent colored backgrounds in pdf

Description

Table with numbers and corresponding color in the background of each cell. (heatmap)

Usage

tableColVal(
 mat,
 main = deparse(substitute(mat)),
 nameswidth = 0.3,
 namesheight = 0.1,
 palette = seqPal(100),
 Range = range(mat, finite = TRUE),
 digits = 0,
 na.rm = TRUE,
 ...,
 roundargs = NULL,
 classargs = NULL,
 cellargs = NULL,
 colargs = NULL,
 rowargs = NULL,
 mainargs = NULL
)

Arguments

Details

Create tables with corresponding color in the background of each cell. (heatmap)

Value

List of locations in plot.

Author(s)

Berry Boessenkool, berry-b@gmx.de, Nov 2012 + Nov 2016

See Also

pdf , heatmap , sortDF

Examples

Bsp <- matrix(c(21,23,26,27, 18,24,25,28, 14,17,23,23, 16,19,21,25), ncol=4, byrow=TRUE)
colnames(Bsp) <- paste0("Measure", LETTERS[1:4])
rownames(Bsp) <- paste("prod", 8:11, sep="_")
Bsp
( tableColVal(Bsp) )
tableColVal(Bsp, nameswidth=0.1) # relative to plot width
tableColVal(Bsp, namesheight=0.5, srt=45)
tableColVal(Bsp, namesheight=0.5, colargs=c(srt=45))
tableColVal(Bsp, cellargs=list(cex=2), col="red")
tableColVal(Bsp, Range=c(10,40))
tableColVal(Bsp, Range=c(20,40))
tableColVal(Bsp, palette=heat.colors(12))
tableColVal(Bsp, palette=c(2,4,7), main="more\nstuff")
Bsp2 <- matrix(rexp(30), ncol=6, byrow=TRUE)
( tableColVal(Bsp2) )
tableColVal(Bsp2, digits=4)
colPointsLegend(Bsp2, horizontal=FALSE, x1=0.05, x2=0.15, y1=0.1, y2=0.8, title="")
## Not run: 
## Rcmd check --as-cran doesn't like to open external devices such as pdf,
## so this example is excluded from running in the checks.
pdf("TableColVal.pdf", height=5); tableColVal(Bsp); dev.off()
openFile("TableColVal.pdf")
unlink("TableColVal.pdf")
## End(Not run)

Test examples in a package

Description

Test all examples in a package

Usage

testExamples(
 path = packagePath("."),
 commentDontrun = FALSE,
 selection = NULL,
 logfolder = "ExampleTestLogs",
 elogfile = "errors.txt",
 wlogfile = "warnings.txt",
 tlogfile = "times.txt",
 plotfile = "plots.pdf",
 tellcurrentfile = TRUE,
 telldocument = TRUE,
 ...
)

Arguments

Value

Logical indicating successful tests

Author(s)

Berry Boessenkool, berry-b@gmx.de, Mar 2019

See Also

The evaluate package

Examples

# testExamples(selection=1:10)

Write text to plot with halo underneath

Description

Write text to plot. A field the size of each label is drawn beneath it, so the text can be read easily even if there are many points in the plot. Fields can be rectangular, elliptic or rectangular with rounded edges.

Usage

textField(
 x,
 y,
 labels = seq_along(x),
 fill = "white",
 border = NA,
 expression = NA,
 margin = 0.3,
 field = "rounded",
 nv = 500,
 rounding = 0.25,
 rrarg = NULL,
 lty = par("lty"),
 lwd = par("lwd"),
 cex = par("cex"),
 xpd = par("xpd"),
 adj = par("adj"),
 pos = NULL,
 offset = 0.5,
 quiet = TRUE,
 ...
)

Arguments

Details

Specifying pos and offset will currently change the position of the text, but not of the field.
srt is not supported yet.
lend, ljoin and lmitre can not be specified for rect, to keep argument number low.
density (crosshatch etc.) is not supported, as this would distract from the text. # Search Engine Keywords: R Text visible on top R labeling with color underneath R Creating text with a halo R Text with shadow

Value

None

Author(s)

Berry Boessenkool, berry-b@gmx.de, April 2013 + March 2014

References

with inspiration taken from ordilabel in package vegan and thanks to Jari Oksanen for his comments

See Also

text , roundedRect ; shadowtext in the archived TeachingDemos package, see https://blog.revolutionanalytics.com/2009/05/make-text-stand-out-with-outlines.html, and https://stackoverflow.com/questions/25631216.
s.label in package ade4, which is not so versatile and doesn't work with logarithmic axes

Examples

# TextFields with mixed field shapes ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
set.seed(13); plot(cumsum(rnorm(100)), type="l", main="berryFunctions::textField")
for(i in 2:7) lines(cumsum(rnorm(100)), col=i)
textField(40, 4, "default")
textField(40, 0, "some options", col=2, fill=4, margin=c(-0.4, 0.9), font=2)
# Ellipsis (looks better in vector graphics like pdf):
textField(80, 2, "field='ellipse'", field="ell", mar=c(0.5, 2.3), border=5)
# Rectangular field with edges rounded:
textField(60,-3, "field='Rounded'", field="rounded", fill="orange", cex=1.7)
# Field type can be abbreviated (partial matching), margin may need adjustment:
textField(90, 5, "short", field="ell", fill=7, border=4, mar=-0.4)
# Rounded can also vectorized:
textField(30, c(2,0,-2,-4,-6), paste("rounding =",seq(0,0.6,len=5)), field="round",
 fill=(2:6), mar=1, rounding=seq(0,0.6,len=5), border=1)
# turn off warning about recycling:
textField(80, c(-5,-6.5), c("Ja", "Nein"), field="round", fill=6:8, quiet=TRUE)
set.seed(007); plot(rnorm(1e4)) ; abline(v=0:5*2e3, col=8)
# Default settings:
textField(5000, 0, "Here's some good text")
# right-adjusted text (the field box still extends 'margin' stringwidths em):
textField(2000, -1, "Some more (smores!)", cex=1.5, adj=0, col=2)
# Field color, no extra margin beyond baseline (excluding descenders):
textField(2000, -2, "more yet", col=2, fill="blue", margin=0)
# margin can be one number for both x and y direction ... :
textField(1000, 2, "Up we go", fill=7, margin=1.4)
# ... or two (x and y different), even negative:
textField(5000, 2, "to the right", col=2, fill=4, margin=c(-0.4, 0.9))
# Fonts can be set as well:
textField(5000, 1, "And boldly down in bold font", font=2, border=3)
# Text can expand outsinde of the plot region (figure) into the margins:
textField(11000, -2, "Hi, I'm a long block of text", adj=1, fill="red")
textField(11000, -3, "You're not outside the plot!", adj=1, xpd=TRUE, fill="red")
# And most parameters can be vectorized, while x/y are recycled:
textField(3000, c(-3, -3.7), c("0", "good"), border=c("red",3), lty=1:2)
# textField even works on logarithmic axes:
mylabel <- c("This","is (g)","the","ever-\n great","Sparta")
plot(10^runif(5000, -1,2), log="y", col=8)
textField(1000, c(100,20,4,2,0.5), mylabel, fill=2, mar=0, expression=FALSE)
textField(2500, c(100,20,4,2,0.5), mylabel, fill=4, mar=0, expression=TRUE)
textField(4000, c(100,20,4,2,0.5), mylabel, fill=3, mar=0)
textField(c(1,2.5,4)*1000, 0.2, paste("expression=\n", c("FALSE","TRUE","NA")))
# In most devices, vertical adjustment is slightly off when the character string
# contains no descenders. The default is for centered text: adj = c(0.5, NA).
# For drawing the field, adj[2] is in this case set to 0.5.
# Text positioning is different for NA than for 0.5, see details of ?text
# I'm working on it through expression, which does not work with newlines yet

Label date axis

Description

Labels date axes at sensible intervals in the time domain of weeks to decades.

Usage

timeAxis(
 side = 1,
 timeAxis = NA,
 origin = "1970-01-01",
 startyear = NULL,
 stopyear = NULL,
 n = 5,
 npm = NULL,
 npy = NA,
 format = "%d.%m.\n%Y",
 yformat = "%Y",
 labels = format.Date(d, format),
 ym = FALSE,
 mcex = 0.6,
 mmgp = c(3, 0, 0),
 midyear = FALSE,
 midmonth = FALSE,
 midargs = NULL,
 mgp = c(3, 1.5, 0),
 cex.axis = 1,
 tick = TRUE,
 tcl = par("tcl"),
 las = 1,
 ...
)

Arguments

Value

The dates that were labeled

Author(s)

Berry Boessenkool, berry-b@gmx.de, Feb 2015, update labels and midyear Dec 2015

See Also

monthLabs for the numbercrunching itself, axis.Date with defaults that are less nice.

Examples

set.seed(007) # for reproducibility
Date1 <- as.Date("2013-09-25")+sort(sample(0:150, 30))
plot(Date1, cumsum(rnorm(30)), type="l", xaxt="n", ann=FALSE)
timeAxis(side=1)
timeAxis(1, npm=2, cex.axis=0.5, col.axis="red") # fix number of labels per month
DateYM <- as.Date("2013-04-25")+0:500
plot(DateYM, cumsum(rnorm(501)), type="l", xaxt="n", ann=FALSE)
monthAxis() # see more examples there - it largely replaces timeAxis!!!
plot(Date1, cumsum(rnorm(30)), type="l", xaxt="n", ann=FALSE)
timeAxis(labels=FALSE, col.ticks=2)
timeAxis(1, format=" ") # equivalent to axis(labels=FALSE)
timeAxis(1)
d <- timeAxis(1, labels=letters[1:24], mgp=c(3,2.5,0))
d # d covers the full year, thus is longer than n=5
Date2 <- as.Date("2011-07-13")+sort(sample(0:1400, 50))
plot(Date2, cumsum(rnorm(50)), type="l", xaxt="n", ann=FALSE)
timeAxis(npy=12, format=" ") # fix number of labels per year
timeAxis(tcl=-0.8, lwd.ticks=2, format="%Y/%m", mgp=c(3,1,0))
timeAxis(format="", mgp=c(3,2,0)) # International Date format YYYY-mm-dd
plot(Date2, cumsum(rnorm(50)), type="l", xaxt="n", ann=FALSE)
timeAxis(midyear=TRUE)
abline(v=monthLabs(npm=1), col=8)
Date3 <- as.Date("2011-07-13")+sort(sample(0:1200, 50))
plot(Date3, cumsum(rnorm(50)), type="l", xaxt="n", ann=FALSE)
timeAxis(1, n=4, font=2)
timeAxis(1, col.axis=3) # too many labels with default n=5
monthAxis(side=3) # again: use monthAxis, it is usually nicer!
# mid-year labels:
plot(Date3, cumsum(rnorm(50)), type="l", xaxt="n", ann=FALSE)
timeAxis(midyear=TRUE, midargs=list(tcl=-1.2))
# mid-month labels:
plot(Date1, cumsum(rnorm(30)), type="l", xaxt="n", ann=FALSE)
timeAxis(midmonth=TRUE)
# Time axis instead of date axis:
plot(as.POSIXct(Sys.time()+c(0,10)*24*3600), 1:2, xaxt="n")
timeAxis(n=3)
timeAxis()

Timer alarm

Description

Beeps in a given interval and gives a progress bar in the console

Usage

timer(interval = 20, n = 15, write = FALSE)

Arguments

Details

defaults to practice useR lightning talks: 15 slides, each shown 20 secs, change automatically

Value

none

Author(s)

Berry Boessenkool, berry-b@gmx.de, June 2015

References

https://user2015.math.aau.dk/lightning_talks

See Also

alarm , Sys.sleep , txtProgressBar

Examples

## Not run: ## Skip time consuming checks on CRAN
timer(interval=0.5, n=3)
timer(interval=0.2, n=8, write=TRUE) # a slight deviation occurs for a large n
# timer() # to practice lightning talks at useR! conferences
## End(Not run)

messages with call trace

Description

message, warning or stop with a call trace prepended

Usage

tmessage(..., skip = 0)
twarning(..., skip = 0, call. = FALSE, noBreaks. = TRUE)
tstop(..., skip = 0, call. = FALSE)

Arguments

Value

NULL, as per message, warning or stop

See Also

traceCall for the generation of the trace

Examples

lower <- function(a, s) {tmessage("some stuff with ", a+10, skip=s); a}
upper <- function(b, skip=0) lower(b+5, skip)
upper(3) # upper -> lower: some stuff with 18
upper(3, skip=1) # no "lower" in trace
upper(3, skip=-1) # upper -> lower -> tmessage: some stuff with 18
tmessage("Some message", " to be displayed")
lower <- function(a, s) {twarning("some stuff with ", a+10, skip=s); a}
upper(7)
oop <- options(warn=1)
upper(7) # Warning: upper -> lower: some [] no line break :)
options(oop) ; rm(oop)
lower <- function(a, s) {tstop("some stuff with ", a+10, skip=s); a}
try( upper(7) ) # Error : try -> upper -> lower: some stuff with 22

call stack of a function

Description

trace the call stack e.g. for error checking and format output for do.call levels

Usage

traceCall(
 skip = 0,
 prefix = "\nCall stack: ",
 suffix = "\n",
 vigremove = TRUE,
 shiremove = TRUE,
 mesremove = TRUE
)

Arguments

Value

Character string with the call stack

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sep 2016 + March 2017

See Also

tmessage , tryStack , checkFile for example usage

Examples

lower <- function(a, s) {warning(traceCall(s, mesremove=FALSE), "stupid berry warning: ", a+10); a}
upper <- function(b, skip=0) lower(b+5, skip)
upper(3)
# Since 2022年05月04日, use tmessage / twarning / tstop instead!
upper(3, skip=1) # traceCall skips last level (R3: warning, R4.1: .makeMessage, R4.2: lapply)
upper(3, skip=6) # now the stack is empty
d <- tryStack(upper("four"), silent=TRUE)
inherits(d, "try-error")
cat(d)
lower <- function(a,...) {warning(traceCall(1, prefix="in ", suffix=": "),
 "How to use traceCall in functions ", call.=FALSE); a}
upper(3)

truncate message parts

Description

truncate long vectors for messages

Usage

truncMessage(
 x,
 ntrunc = 3,
 prefix = "s",
 midfix = " ",
 altnix = "'",
 sep = ", "
)

Arguments

Value

Character string

Author(s)

Berry Boessenkool, berry-b@gmx.de, Nov 2016

See Also

message

Examples

truncMessage("hi")
message("listing name", truncMessage( "hi" ), ".")
message("listing name", truncMessage(paste0("hi",1:10)), ".")
truncMessage(paste0("hi",1:10), ntrunc=1)
truncMessage(paste0("hi",1:10), ntrunc=2, prefix="", midfix="")
truncMessage(paste0("hi",1:10), ntrunc=8, prefix="files _ ")

try an expression, returning the error stack

Description

As in try , the result of an expression if it works. If it fails, execution is not halted, but an invisible try-error class object is returned and (unless silent=TRUE) a message catted to the console.
Unlike try , tryStack also returns the calling stack to trace errors and warnings and ease debugging.

Usage

tryStack(
 expr,
 silent = FALSE,
 warn = TRUE,
 short = TRUE,
 file = "",
 removetry = TRUE,
 skip = NULL
)

Arguments

Value

Value of expr if evaluated successfully. If not, an invisible object of class "try-error" as in try with the stack in object[2]. For nested tryStack calls, object[3], object[4] etc. will contain "– empty error stack –"

Author(s)

Berry Boessenkool, berry-b@gmx.de, Nov 2016

See Also

try , traceCall , https://web.archive.org/web/20200813031649/https://r.789695.n4.nabble.com/Stack-trace-td4021537.html, https://stackoverflow.com/questions/15282471/get-stack-trace-on-trycatched-error-in-r, https://stackoverflow.com/questions/1975110/printing-stack-trace-and-continuing-after-error-occurs-in-r, https://stackoverflow.com/questions/16879821/save-traceback-on-error-using-trycatch

Examples

# Functions -----
lower <- function(a) {message("fake message, a = ", a); a+10}
middle <- function(b) {plot(b, main=b) ; warning("fake warning, b = ", b); lower(b) }
upper <- function(c) {cat("printing c:", c, "\n") ; middle(c)}
d <- upper(42)
d
rm(d)
# Classical error management with try -----
is.error( d <- upper("42"), TRUE, TRUE) # error, no d creation
traceback() # calling stack, but only in interactive mode
d <- try(upper("42"), silent=TRUE) # d created
cat(d) # with error message, but no traceback
inherits(d, "try-error") # use for coding
# way cooler with tryStack -----
d <- tryStack(upper("42") ) # like try, but with traceback, even for warnings
cat(d)
d <- tryStack(upper("42"), silent=TRUE, warn=0) # don't trace warnings
d <- tryStack(upper("42"), short=FALSE)
tryStack(upper(42)) # returns normal output, but warnings are easier to debug
# Note: you can also set options(showWarnCalls=TRUE)
stopifnot(inherits(d, "try-error"))
stopifnot(tryStack(upper(42))==52)
## Not run: ## file writing not wanted by CRAN checks
d <- tryStack(upper("42"), silent=TRUE, file="log.txt")
openFile("log.txt")
unlink("log.txt")
## End(Not run)
op <- options(warn=2)
d <- try(upper("42") )
cat(d)
d <- tryStack(upper("42") )
d <- tryStack(upper("42"), warn=FALSE)
cat(d)
options(op) ; rm(op)
# Nested calls -----
f <- function(k) tryStack(upper(k), silent=TRUE)
d <- f(42) ; cat("-----\n", d, "\n-----\n") ; rm(d)
d <- f("42") ; cat("-----\n", d, "\n-----\n") ; rm(d)
d <- tryStack(f(4) ) ; cat("-----\n", d, "\n-----\n") ; rm(d)
# warnings in nested calls are printed twice, unless warn=0
d <- tryStack(f(4), warn=0) # could also be set within 'f'
d <- tryStack(f("4")) ; cat("-----\n", d, "\n-----\n")
d[1:3] ; rm(d)
# empty stack at begin - because of tryStack in f, no real error happened in f
# Other tests -----
cat( tryStack(upper("42")) )
f <- function(k) tryStack(stop("oh oh"))
d <- f(42) ; cat("-----\n", d, "\n-----\n") ; rm(d) # level 4 not helpful, but OK
# stuff with base::try
f <- function(k) try(upper(k), silent=TRUE)
d <- f(42) ; cat("-----\n", d, "\n-----\n") ; rm(d)
d <- f("42") ; cat("-----\n", d, "\n-----\n") ; rm(d) # regular try output
f2 <- function(k) tryStack(f(k), warn=0, silent=TRUE)
d <- f2(42) ; cat("-----\n", d, "\n-----\n") ; rm(d)
d <- f2("42") ; cat("-----\n", d, "\n-----\n") ; rm(d) # try -> no error.
# -> Use tryCatch and you can nest those calls. note that d gets longer.

Unit Hydrograph

Description

Calculate continuous unit hydrograph with given n and k (in the framework of the linear storage cascade)

Usage

unitHydrograph(n, k, t, force = FALSE)

Arguments

Value

Vector with the unit hydrograph along t

Note

The sum under the UH should always be 1 (if t is long enough). This needs yet to be checked...

Author(s)

Berry Boessenkool, berry-b@gmx.de, July 2013

See Also

lsc on how to estimate n and k for a given discharge dataset. deconvolution.uh in the package hydromad, https://hydromad.github.io/

Examples

Time <- 0:100
plot(Time, unitHydrograph(n=2, k=3, t=Time), type="l", las=1,
 main="Unit Hydrograph - linear storage cascade")
lines(Time, unitHydrograph(n=2, k=8, t=Time), col=2)
lines(Time, unitHydrograph(n=5.5,k=8, t=Time), col=4)
text(c(12, 20, 50), c(0.1, 0.04, 0.025), c("n=2, k=3","n=2, k=8","n=5.5, k=8"),
 col=c(1,2,4), adj=0)
# try several parameters (e.g. in Monte Carlo Simulation to estimate
 # sensitivity of model towards slight differences/uncertainty in parameters):
nreps <- 1e3 # 5e4 eg on faster computers
n <- rnorm(nreps, mean=2, sd=0.8); n <- n[n>0]
k <- rnorm(nreps, mean=8, sd=1.1); k <- k[k>0]
UH <- sapply(1:nreps, function(i) unitHydrograph(n=n[i], k=k[i], t=Time))
UHquant <- apply(UH, 1, quantile, probs=0:10/10, na.rm=TRUE)
if(interactive()) View(UHquant)
plot(Time, unitHydrograph(n=2, k=8, t=Time), type="l", ylim=c(0, 0.06), las=1)
# uncertainty intervals as semi-transparent bands:
for(i in 1:5)
 polygon(x=c(Time, rev(Time)), y=c(UHquant[i,], rev(UHquant[12-i,])),
 col=rgb(0,0,1, alpha=0.3), lty=0)
lines(Time, UHquant[6,], col=4)
lines(Time, unitHydrograph(n=2, k=8, t=Time))
# Label a few bands for clarity:
points(rep(24,3), UHquant[c(2,5,9),25], pch="+")
for(i in 1:3) text(25, UHquant[c(2,5,9)[i],25],
 paste("Q", c(10,40,80)[i], sep=""), adj=-0.1, cex=0.7)
# And explain what they mean:
Explain <- "Q80: 80% of the 50000 simulations are smaller than this value"
legend("topright", bty="n", legend=Explain)
# Some n and k values are cut off at the left, that explains the shift from the
# median of simulations relative to the n2k8 line.

write table with different defaults

Description

calls write.table with (personally) useful default values for the arguments. if open=TRUE, tries to open the file in the default txt viewer.

Usage

write.tab(
 x,
 file = NULL,
 sep = "\t",
 name_rn = NULL,
 row.names = FALSE,
 col.names = !is.null(colnames(x)),
 quote = FALSE,
 fileEncoding = "UTF-8",
 open = TRUE,
 ...
)

Arguments

Value

full filename

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sep 2021

See Also

write.tab

Examples

# Don't run on CRAN test machines:
## Not run: 
write.tab(iris)
write.tab(iris, "otherfile.txt")
write.tab(freeny)
write.tab(freeny, name_rn="Time")
unlink("iris.txt")
unlink("otherfile.txt")
unlink("freeny.txt")
## End(Not run)

annual plot

Description

Visualize seasonality of time series

Usage

yearPlot(
 dates,
 values,
 data,
 ylim = NULL,
 shift = 0,
 janline = TRUE,
 add = FALSE,
 months = substr(month.abb, 1, 1),
 xlab = "",
 ylab = "",
 zlab = "",
 ...
)

Arguments

Value

invisible list with coordinates

Author(s)

Berry Boessenkool, berry-b@gmx.de, Sept 2019

See Also

seasonality , colPoints ,

Examples

qfile <- system.file("extdata/discharge39072.csv", package="berryFunctions")
Q <- read.table(qfile, skip=19, header=TRUE, sep=",", fill=TRUE)[,1:2]
Q$data <- as.Date(Q$data)
yearPlot(data, last, data=Q)
yearPlot(as.Date(c("2011-06-07","2009-03-25")), 1:2, add=TRUE, pch=3, col=1, legend=FALSE)
yearPlot(data, last, data=Q, shift=61)
yearPlot(data, last, data=Q, ylim=c(2015,2001))

Nonrandom year with sample

Description

Nerdy way to wish someone a happy new year by using sample

Usage

yearSample(year)

Arguments

Details

Nerdy way to wish someone a happy new year, eg:
Have a great
set.seed(1244); sample(0:9,4,T)

Value

cat s command into the console that can be copypasted to anyone's R script.

Author(s)

Berry Boessenkool, berry-b@gmx.de, April 2014

See Also

nameSample to impress with "randomly" finding a name, set.seed , sample , letters

Examples

yearSample(2016)
# Have a nerdy
set.seed(12353); sample(0:9, 4, replace=TRUE)