pysteps.utils.spectral.std

pysteps.utils.spectral.std(X, shape, use_full_fft=False)

Compute the standard deviation of a two-dimensional array in the spectral domain.

Parameters:

X : array_like

A complex array representing the Fourier transform of a two-dimensional array.

shape : tuple

A two-element tuple specifying the shape of the original input array in the spatial domain.

use_full_fft : bool

If True, X represents the full FFT of the original array. Otherwise, it is assumed to contain only the symmetric part, i.e. in the format returned by numpy.fft.rfft2.

Returns:

out : float

The standard deviation.