Periodogram

Periodogram[list] plots the squared magnitude of the discrete Fourier transform (power spectrum) of list.

• Periodogram[list, n] plots the mean of power spectra of non-overlapping partitions of length n.
• Periodogram[list, n, d] uses partitions with offset d.
• Periodogram[list, n, d, wfun] applies a smoothing window wfun to each partition.
• Periodogram[list, n, d, wfun, m] pads partitions with zeros to length m prior to the computation of the transform.
• Periodogram[{list1, list2, ...}, n, d, wfun, m] plots power spectra of several lists.
• Periodogram[audio, ...] plots the power spectrum of audio.
• Periodogram[video, ...] plots the power spectrum of the first audio track in video.
• Periodogram[{input1, input2, ...}, ...] plots the power spectra of all inputi.

Examples

Periodogram[Table[Sin[2 Pi 0.1 n], {n, 100}]]

Periodogram[RandomReal[1, 256], 64]

Please visit the official Wolfram Language Reference for more details.