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Frequency Domain Signal using FFT command

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Amie-lea Sambrook
Amie-lea Sambrook on 18 Feb 2014
Closed: MATLAB Answer Bot on 20 Aug 2021
I am trying to recreate an image similar to the following:
I have a signal and I have been using the FFT command to try and create this type of graph, I am just checking that I am actually using the correct command?
My aim is to plot the harmonics of my signal (so at points 1, 2, 3, 4...) showing the magnitude of the harmonic.
Any help would be greatly appreciated

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