On Sun, 3 Aug 2003, David Parkhurst wrote: > The help page for randomForest shows na.action=na.fail as a parameter, and > does not describe other possibilities for na.action. > > I have a regression problem, with about 1000 rows in my data frame, and with > an NA in occasional predictor variables, in about 5% of rows. I would like > to have all rows included in the analysis, to the extent possible. (That > seems to be possible in rpart, for example.) Is it possible to specify that > rows with a few NA's should be included in the randomForest analysis? If > so, how?
What do you want the tree procedure to do with NAs? Hint: rpart and tree have two different approaches. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [EMAIL PROTECTED] mailing list https://www.stat.math.ethz.ch/mailman/listinfo/r-help
