Training and Validation R2s in Lasso/Elastic net
Dear all, I use k-fold cross-validation in combination with penalized regression models (lasso, elastic net) and want to examine the (averaged) R2 values of the training/validation sets to check for overfitting and explained variance. I already searched around with the many options, but I can not find that. Is there a way to show this? It would be great, if that could be shown in the overview tabl...