Taking frequency of a signal portrayed as a 1D-array

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Yargo Duran Pacheco
回答： Star Strider 2015-4-28
I have a signal portrayed as a 1D-array(2500002 elements) and I want to take its frequency and I have no idea how.
Thanks in advance!
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Star Strider
Star Strider 2015-4-28
The fft function will do what you want.
Pay special attention to the code between the top two figures in the documentation.

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