how to write a code that will calculate the Fourier Transform of a signal

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I need help writting a code that can open and read a given file, that can calculate the fourier transform of a signal. The code also needs to be able to plot that FT and put only the positive values of the frequency. Any idea of how I could start this?
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Jan
Jan 2021년 4월 13일
Start with "open and read a file". It depends on the file format, how this must be done. So please explain, what kind of file you mean.
For the Fourier transformation simply call fft().

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Abhishek Gupta
Abhishek Gupta 2021년 4월 16일
Hi,
Referring to the following documentation link, which might help you in achieving the task: -

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