How do i separate data?

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Fatima Bm
Fatima Bm 2021-1-7
评论： Fatima Bm 2021-1-8
Hello everyone I attached data file. I want to separate data at interval of 20. How do this? Fs=20000 Data is time series.
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Adam Danz
Adam Danz 2021-1-7
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.
Fatima Bm
Fatima Bm 2021-1-8
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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