[R] Specify feature weights in model prediction (CARET)

[Max Kuhn]

> Using the 'CARET' package, is it possible to specify weights for features
> used in model prediction?

For what model?

> And for the 'knn' implementation, is there a way
> to choose a distance metric (i.e. Mahalanobis distance)?
>

No, sorry.

Max