matplotlib-users Mailing List for matplotlib

John Hunter wrote:
> http://matplotlib.sourceforge.net
> 	
> What's new in matplotlib 0.42
> 
> EPS output from PS backend
> 
> Just add an eps extension
> 
> PS and EPS save from GTK and WX backends with bugs fixed
> 
[snipped]
Thanks very much. I did an upgrade via CVS and the eps output works fine.
A slight glitch though. I think John has changed the AFMPATH
environmental variable to MATPLOTLIBDATA (which is a more appropriate
name) so people installing matplotlib in non-default places will have to
set it instead.
Regards,
ST
--

Hi John,
What do you think of adding a button to the standara toolbar allowing 
the plotted data to be save in CSV format?
It woul be very convenient when the user wants to take the data to 
another plotting program, and the plot is a good place to save because 
the data is already sorted out. In some types of plots such as the 
histogram, the plot woul allow for saving the actual data that 
represents the histogram (such as class intervals or mid points and 
frequencies) instead of the raw data.
What do you think?
Talking about plots, I am writing a module to calculate Kernel density 
estimates (a kind of continuous histogram) would you be interested in 
adding it to matplotlib?
cheers,
Flavio

John Hunter wrote:
> http://matplotlib.sourceforge.net
> 	
> What's new in matplotlib 0.42
> 
> EPS output from PS backend
> 
> Just add an eps extension
> 
> PS and EPS save from GTK and WX backends with bugs fixed
> 
[snipped]
Thanks very much. I did an upgrade via CVS and the eps output works fine.
A slight glitch though. I think John has changed the AFMPATH 
environmental variable to MATPLOTLIBDATA (which is a more appropriate 
name) so people installing matplotlib in non-default places will have to 
set it instead.
Regards,
ST
--

>>>>> "LUK" == LUK ShunTim <shu...@po...> writes:
 LUK> A slight glitch though. I think John has changed the AFMPATH
 LUK> environmental variable to MATPLOTLIBDATA (which is a more
 LUK> appropriate name) so people installing matplotlib in
 LUK> non-default places will have to set it instead.
ps backend is setup to use both, the idea that you may have some AFM
files independent of matplotlib, and some that ship with matplotlib.
The MATPLOTLIBDATA is indeed for people installing in nonstandard
places. But if AFMPATH is not working for you, I need to know since
this is a bug.
Thanks!
John Hunter

First of all, thanks for matplotlib. 
This is far and away the best python plotting package I have come
across.
I've attached a patch for axes.py that allows 'stacked bar charts' to be
produced using the bar function.
The idea with a stacked bar chart is that you have several series of
data that naturally stack up on top of each other. You can achieve
this effect with a small fix to the bar function. All you have to do is
to specify the offsets along the y-axis for each value being plotted (by
default these offsets would be all zero, equivalent to the existing
function).
See stacked_bar.py for an example of how you might use this.
The patch adds an extra keyword arguement , yoff, to plot.
This allows you to supply a list of offsets for the values to be
plotted.
Using this you can 'stack' up results by using successive calls to bar,
so long as you are careful to get the offsets right.
John