statsmodels.tsa.varma_process.VarmaPoly.vstack

VarmaPoly.vstack(a=None, name='ar')

Stack lagpolynomial vertically in 2d array

Parameters:

andarray, optional

Lag polynomial array to stack. If None, uses self.ar or self.ma, selected by name.

name{“ar”, “ma”}, optional

Which instance lag polynomial to use when a is None.

Returns:

ndarray

The lag polynomial stacked vertically into a 2d array.