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error in random forest

Nagu 
Hi,

I get the following error when I try to predict the probabilities of a
test sample:

Error in predict.randomForest(fit.EBA.OM.rf.50, x.OM, type = "prob") :
  New factor levels not present in the training data

I have about 630 predictor variables in the dataset x.OM (25 factor
variables and the remaining are continuous variables). Any ideas on
how to trace it?

Thank you,
Nagu

Thread (2 messages)

Nagu error in random forest Mar 7 David Katz error in random forest Mar 8