statsmodels.tsa.vector_ar.var_model.VARProcess.orth_ma_rep¶

VARProcess.orth_ma_rep(maxn=10, P=None)[source]¶

Compute orthogonalized MA coefficient matrices using P matrix such that ${\mathrm{\Sigma }}_u=P{P}^{\prime }$. P defaults to the Cholesky decomposition of ${\mathrm{\Sigma }}_u$

Parameters:¶

maxnint

Number of coefficient matrices to compute

Pndarray (k x k), optional

Matrix such that Sigma_u = PP’, defaults to Cholesky descomp

Returns:¶

coefsndarray (maxn x k x k)