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
- maxlag
int 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:
- arrp
ndarray zero-padded array
- arrp
Notes
This is mainly written to extend coefficient arrays for the lag-polynomials. It returns a copy.