statsmodels.sandbox.tsa.fftarma.ArmaFft.padarr¶

ArmaFft.padarr(arr, maxlag, atend=True)[source]¶

pad 1d array with zeros at end to have length maxlag function that is a method, no self used

Parameters:¶

arrarray_like, 1d

array that will be padded with zeros

maxlagint

length of array after padding

atendbool

If True (default), then the zeros are added to the end, otherwise to the front of the array

Returns:¶

arrpndarray

zero-padded array

Notes

This is mainly written to extend coefficient arrays for the lag-polynomials. It returns a copy.