Hi Kate, Things that can reasonably be combined will appear in the combined randomForest object. Those that cannot are set to NULL. I believe variable importance is kept, and possibly (pseudo) r-squared as well.
Best, Andy > -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Kate Behrman > Sent: Tuesday, September 09, 2008 1:53 PM > To: [email protected] > Subject: [R] randomForest > > I am combining many different random forest objects run on > the same data set > using the combine ( ) function. After combining the forests I > am not sure > whether the variable importance, local importance, and rsq > predictors are > recalculated for the new random forest object or are calculated > individually for each tree ensemble? Is it possible to > calculate these > predictors for the new random forest object after calling the combine > function? Any help would be greatly apprecaited. Thanks, Kate > > [[alternative HTML version deleted]] > > ______________________________________________ > [email protected] mailing list > https://stat.ethz.ch/mailman/listinfo/r-help > PLEASE do read the posting guide > http://www.R-project.org/posting-guide.html > and provide commented, minimal, self-contained, reproducible code. > Notice: This e-mail message, together with any attachme...{{dropped:12}} ______________________________________________ [email protected] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
