[R] rpart vs. randomForest

Liaw, Andy andy_liaw at merck.com
Tue Apr 15 16:26:21 CEST 2003

I just saw in the prelimenary program for JSM '03, there will be (at least)
5 talks on random forest (one from our group), two of which will address the
issue of tuning mtry, judging form the abstracts.

If I may do a bit of advertising: I was asked to organized a roundtable
luncheon at the JSM on multiple trees.  I'd welcome anyone interested in
this area to come.


> -----Original Message-----
> From: Wiener, Matthew [mailto:matthew_wiener at merck.com]
> Sent: Tuesday, April 15, 2003 10:00 AM
> To: r-help at stat.math.ethz.ch
> Subject: RE: [R] rpart vs. randomForest
> I can echo that in data I've worked with (separate from the 
> data Andy Liaw
> has worked with), fiddling with mtry doesn't make a whole lot 
> of difference.
> To the extent it makes any difference at all, the default 
> value tends to be
> near the optimum.
> Matt Wiener
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