Asterios Tsiourvas04/02/2023, 2:55 PM
Max (Nixtla)04/03/2023, 7:53 PM
parameter to true? Here is an example
Asterios Tsiourvas04/04/2023, 12:27 AM
fede (nixtla) (they/them)04/04/2023, 10:45 PM
approach breaks when the model’s residuals have low variance, such as when the residuals are close to a constant. Could you check if that’s the case? (You can check this by computing the difference between the actual values and the fitted values of the models and after that computing the variance for each model) The
function computes the variance-covariance matrix of the residuals, which is a challenging problem. This can result in an ill-conditioned matrix that causes the process to break. To address this, you can use alternative approaches like
. These approaches can help to reduce the complexity of the variance-covariance matrix and make it more stable. Hopefully, trying these alternative approaches will help to resolve the issue you’re experiencing.