Re sample/down sample csv from 501 to 101 nodes in Matlab

Question

I have ground reaction force csv files which are 501x11 / 11x501 double

Female_GRF = csvread('Female_Fz.csv'); Male_GRF = csvread('Male_Fz.csv');

Female_GRF = Female_GRF'; Male_GRF = Male_GRF';

Please can anyone direct me how I can resample or downsample these from 501 nodes to 101x11 / 11x101?

Any help is appreciated.

Thank you

Welcome to SO! You're asking us to write code for you but haven't showed any effort on your behalf, which is off-topic. Instead, show us your attempt to solve the problem, and ask a specific question about the problem you're having. In addition it sounds like you're asking for recommendations for code or a tutorial, which is again off topic. See "[ask]" and its linked pages. — the Tin Man, Jan 28 '22 at 18:47

score 0 · Answer 1 · answered Jan 18 '22 at 20:42

Matlab has a builtin downsampling method:

>> Female_GRF = downsample(Female_GRF,5);

replaces Female_GRF with the downsampled version.

On the other hand, if by "downsample", you mean keep every 5th entry, then that's easier: the command

>> Female_GRF = Female_GRF(1:5:end);

replaces the variable Female_GRF with a "downsampled" version.

1 Answers1