How do i separate data?

Hello everyone I attached data file. I want to separate data at interval of 20. How do this? Fs=20000 Data is time series.

6 个评论

Interval of 20 what? Seconds? Rows?
Adam Danz
Adam Danz 2021-1-7
编辑:Adam Danz 2021-1-7
What's the sampling frequency and what's Fs? If Fs=20000 is Hz, that answers my questions.
Yes, fs=20000Hz is sampling frequency
That means there are 20000 samples per second. If you want every 20 seconds, that's the same as every 20*fs samples which is what my answer does.
Ok, thanks. I ran the code but I didn't get a result

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Adam Danz
Adam Danz 2021-1-7
编辑:Adam Danz 2021-1-7
Assuming fs is the sampling frequency in Hz,
load('06-11_36.mat')
resampleInteval = 20; % seconds
dataResampled = data(1 : fs*resampleInteval : end);
Alternatively, see resample() which offers additional interpolation methods.

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