statsmodels.sandbox.tsa.fftarma.ArmaFft.fftar¶

ArmaFft.fftar(n=None)[source]¶

Fourier transform of AR polynomial, zero-padded at end to n

Parameters:¶

n : int¶

length of array after zero-padding

Returns:¶

fftar – fft of zero-padded ar polynomial

Return type:¶

ndarray