How to do fft of a csv file to plot amplitude spectrum
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I have a csv files with 2 columns. 1st column has time and second column has the value (These are the outut values of a VCO that is not constant) . Around 2006 rows are there in total. I want to plot the amplitude spectrum of these values. For that I have to do the FFT of these values. What is the code for doing this?
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