Hui Han <[EMAIL PROTECTED]> writes: > Thinking that the following suggestions by Matt may be helpful to others, > I am fowarding his notes to R-list.
<Did you ask for permission? You really should.> > On Wed, Mar 31, 2004 at 08:57:13AM -0800, Austin, Matt wrote: > > Use na.action=na.omit in your function call to delete those rows, but this > > can give you problems if you want to use follow-up methods such as the > > partial.plot(). This is what I usually do: > > > > naRows <- apply(data2, 1, function(x) any(is.na(x))) > > > > sum(!(naRows)) > > > > data2.noNAs <- data2[!naRows,] > > > > chg.rf <- randomForest(ch13 ~ .,data=data2.noNAs, importance=TRUE, > > keep.forest=TRUE) Actually, data2.noNAs <- na.omit(data2) will do the trick and !naRows is the same as complete.cases(data2). -- O__ ---- Peter Dalgaard Blegdamsvej 3 c/ /'_ --- Dept. of Biostatistics 2200 Cph. N (*) \(*) -- University of Copenhagen Denmark Ph: (+45) 35327918 ~~~~~~~~~~ - ([EMAIL PROTECTED]) FAX: (+45) 35327907 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
