Handy programs to visualize NIRS data (3): plotFFT

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Sometimes you wish to know the spectrum of a time series. plotFFT is a handy function for this purpose.

plotFFT
plotFFT

You instantly know the power of the signal at each frequency.

Here is an example on how to use this function:

figure; plotFFT(randn(1,1000));

Source code:
plotFFT


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