tsa.stattools.periodogram()

statsmodels.tsa.stattools.periodogram

statsmodels.tsa.stattools.periodogram(X) [source]

Returns the periodogram for the natural frequency of X

Parameters:	X : array-like Array for which the periodogram is desired.
Returns:	pgram : array 1./len(X) * np.abs(np.fft.fft(X))**2

References

Brockwell and Davis.