Convert real data to frequency domain

Hello all,

I have depth data from a Kinect V2 (attached) and am trying to convert it to the frequency domain. The sampling rate of acquisition is 30 Hz.

Thank you in advance!

[Walter Roberson]

fft(final_answer_ROI_1)

See the first example in the fft() documentation for information on how to construct the frequency vector.

[Anthony Foti]

Thank you Walter, I was missing the frequency vector which was making my frequency plot insignificant.