statsmodels.tsa.vector_ar.var_model.VARResults.forecast_cov¶

VARResults.forecast_cov(steps=1, method='mse')[ソース]¶

Compute forecast covariance matrices for desired number of steps

Parameters:¶

stepsint

Returns:¶

covsndarray (steps x k x k)

Notes

\[\Sigma_{\hat y}(h) = \Sigma_y(h) + \Omega(h) / T\]

Ref: Lütkepohl pp. 96-97