statsmodels.tsa.vector_ar.var_model.VARProcess.mse¶ VARProcess.mse(steps)[source]¶ Compute theoretical forecast error variance matrices Parameters:¶ steps : int¶Number of steps ahead Notes \[\mathrm{MSE}(h) = \sum_{i=0}^{h-1} \Phi \Sigma_u \Phi^T\] Returns:¶ forc_covs Return type:¶ ndarray (steps x neqs x neqs)