*R*

I've trained two knn models, knn1 and knn2. I want to plot a graph of cross-validation RMSE vs neighbors for each but on the SAME plot, not two seperate plots.

Current code:

set.seed(1337) knn1 = train(....)

set.seed(1337) knn2 = train(....)

What I'm doing currently is:

plot(knn1, main = 'KNN 1') plot(knn2, main = 'KNN 2')

This plots them but separetely. How can I plot it so its on the same graph?