[R] na.action in randomForest
ligges at statistik.uni-dortmund.de
Mon Aug 4 10:23:28 CEST 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?
I don't know the design of randomForest, but if the authors have
implemented na.action as in other functions, you can specify your own
function here (typical one uses na.fail or na.omit).
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