MATLAB: How do i separate data

neural networkneuroscienceseparate 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.

Best Answer

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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MATLAB: Changing frequency of input data

resample()

timeseries object also has resample() method. see

web(fullfile(docroot, 'matlab/ref/timeseries.resample.html'))

tsin = timeseries([1.1 2.9 3.7 4.0 3.0]',1:5);
tsout = resample(tsin,[1 1.5 3.5 4.5 4.9]);
tsindata = tsin.Data

MATLAB: What are “frequency bins”

frequency bins are intervals between samples in frequency domain. For example, if your sample rate is 100 Hz and your FFT size is 100, then you have 100 points between [0 100) Hz. Therefore, you divide the entire 100 Hz range into 100 intervals, like 0-1 Hz, 1-2 Hz, and so on. Each such small interval, say 0-1 Hz, is a frequency bin.

HTH

Best Answer

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MATLAB: Changing frequency of input data

MATLAB: What are “frequency bins”

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