Google "random forests" see Leo Brieman's site, Wikipedia, & esp link at bottom of wikipedia page to Andy & Matt's article in RNews
I did a DMA/AC webinar in January. Slides are at: http://www.porzak.com/JimArchive/JimPorzak_RFwithR_DMAAC_Jan07_webinar.pdf On 4/23/07, Ron Michael <[EMAIL PROTECTED]> wrote: > Dear all R gurus, > > I am really sorry if my query embraces anyone. Can anyone give me some > introductory papers or suggestions about what Random Forest is? > > Thanks and regards, > > ----- Original Message ---- > From: Weiwei Shi <[EMAIL PROTECTED]> > To: Ruben Feldman <[EMAIL PROTECTED]> > Cc: r-help@stat.math.ethz.ch > Sent: Monday, April 23, 2007 8:56:29 PM > Subject: Re: [R] Random Forest > > Hi, Ruben: > > fit$confusion > > if you provide your test data, then you can also access the confusion > matrix of test data by > > fit$test$confusion > > there are details of how to use randomForest by reading: > ?randomForest > > HTH, > > Weiwei > > On 4/22/07, Ruben Feldman <[EMAIL PROTECTED]> wrote: > > Hi, > > > > I am trying to print out my confusion matrix after having created my random > > forest. > > I have put in this command: > > fit<-randomForest(MMS_ENABLED_HANDSET~.,data=dat,ntree=500,mtry=14, > > na.action=na.omit,confusion=TRUE) > > but I can't get it to give me the confusion matrix, anyone know how this > > works? > > > > Thansk! > > > > Ruben > > > > [[alternative HTML version deleted]] > > > > ______________________________________________ > > R-help@stat.math.ethz.ch 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. > > > > > -- > Weiwei Shi, Ph.D > Research Scientist > GeneGO, Inc. > > "Did you always know?" > "No, I did not. But I believed..." > ---Matrix III > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > > > > > > > > [[alternative HTML version deleted]] > > ______________________________________________ > R-help@stat.math.ethz.ch 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. > -- HTH, Jim Porzak San Francisco, CA http://www.linkedin.com/in/jimporzak ______________________________________________ R-help@stat.math.ethz.ch 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.