Suggestions for speeding up Random Forests

Question

I\'m doing some work with the randomForest package and while it works well, it can be time-consuming. Any one have any suggestions for speeding things up? I\'

Answer 1

There are two 'out of the box' options that address this problem. First, the caret package contains a method 'parRF' that handles this elegantly. I commonly use this with 16 cores to great effect. The randomShrubbery package also takes advantages of multiple cores for RF on Revolution R.