[R] gbm function

From: azam jaafari <azamjaafari_at_yahoo.com>
Date: Wed, 23 Jun 2010 00:05:06 -0700 (PDT)


I have questions about gbm package.  It seems we have to devide data to two part (training set and test set) for first.

1- trainig set for running of gbm function 2- test set for gbm.perf   

is it rigth?
I have 123 sample that I devided 100 for trainig and 23 for test.

So, parameter of cv.folds in gbm function is for what?

Thanks alot

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