pysteps.utils.spectral.std

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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 – The standard deviation.

Return type:

float

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