Re: [R] comparing random forests and classification trees

2009-09-17 Thread Frank E Harrell Jr
The validate.rpart function in the rms package will handle the rpart part of this. It makes sure that the tree is re-built from scratch for each re-sample. It estimates MSE and Somers' Dxy (twice (ROC area -.5)). Frank jamesmcc wrote: Greetings tree and forest coders- I'm interested in com

Re: [R] comparing random forests and classification trees

2009-09-17 Thread jamesmcc
nice paper overall and contained many interesting approaches and points. Thanks in advance, James -- View this message in context: http://www.nabble.com/-R--comparing-random-forests-and-classification-trees-tp8682315p25491934.html Sent from the R help mailing list archive at Nabble.com. _