Skip to main content
Stack Overflow
  1. About
  3. For Teams
Filter by
Sorted by
Tagged with
0 votes
0 answers
44 views

I am doing frequency analysis on many sets of snow data, which sometimes have (valid) zero values in the Annual Maxima Series. To help guide the selection of distribution, I am calculating some ...
1 vote
1 answer
125 views

I am trying to estimate quantiles for some snow data using the log pearson type 3 distribution in Python and comparing with R. I do this by reading in the data, log transforming it, fitting Pearson ...
0 votes
0 answers
79 views

I am trying to filter for a frequency of e.g. ~3.1Hz in a time-based signal which contains various frequency components (including the ~3.1Hz). I tried to build a bandpass filter with a lowpass and a ...
1 vote
0 answers
40 views

Context: For university i have to write a programm that calculates the position and value of an runout error for dirlls. Idea: My idea is with fourier transformation i only look at the noise and ...
0 votes
0 answers
137 views

I have a video fragment which I split into frames (pictures). I use them in pairs (1 frame with 2, 2 with 3, etc.) to find shifts on x and y axes (i.e. how much I need to shift 1 frame to make it like ...
0 votes
1 answer
125 views

I have a frequence table for females and males. t1 <- table(PainF$task_duration) t2 <- table(PainM$task_duration) Females 30 40 45 60 65 70 75 78 80 90 95 100 101 120 144 150 180 185 ...
0 votes
1 answer
131 views

I have the following FFT plot: I don't know if this is possible, but I would like to find a transfer function from this FFT plot in MATLAB. This is what I have done so far: np = 2; % number of poles ...
0 votes
0 answers
177 views

LCR Circuit: Problem Description: For my Signals and Systems class, we are supposed to use Python and matplotlib to plot the frequency responses of a variety of different circuits, including an LCR ...
0 votes
0 answers
166 views

My goal is to measure the pitch of my violin with a small computer/microcontroller very accurately (a Raspberry Pi would be too big). I'm aiming for an accuracy of 0.1 Hz; 0.5 Hz could also work. The ...
0 votes
1 answer
49 views

I have a dataframe in R and want to add a column with relative freuqencys to each variable. Here is an example dataframe I am working with: df <- data.frame( Ausprägung = c("Obs1", &...
1 vote
2 answers
744 views

I'm trying to determine if there are significant differences in frequencies of a categorial variable with 8 levels between two groups. In this case, two groups are asked their favorite colors with 8 ...
5 votes
1 answer
630 views

I have translated the algorithm of the Generalized Goertzel technique in Python from the Matlab code that can be found here. I have trouble using it on real data and only on real data: generating a ...
2 votes
0 answers
461 views

I am trying to desing optimal high-pass filter to remove glitches from the signal. At the begining, I tried to apply butterworth high-pass filter on the sinusoidal 5 Hz signal. % Sample rate and time ...
1 vote
1 answer
85 views

Im trying to write a program that will output the occurrence of words starting with each letter of the alphabet. So far I have gotten the code to work and output the right numbers. However the issue ...
1 vote
2 answers
223 views

I have a signal whose expression is shown below: Mathematical expression of the signal What method can I use to fit this signal accurately when A, B, ω, D,E in the signal are all unknown parameters? ...

15 30 50 per page
1
2 3 4 5
...
27

AltStyle によって変換されたページ (->オリジナル) /