Hi all,

I am trying to predict a target variable that takes values 0 or 1 using the rpart command. In my initial dataset I have few positive observations of the target variable; therefore I have oversampled the rare event by a multiple of 6 (i.e. from 762 to 4572).

However, in my results, I end up with a number of positives in one of the terminal nodes that is not divisible by 6. As I have the same observation repeated 6 times, shouldn't all of them follow the same branch of the tree and go to the same terminal node?

Thanks for your help,

Vicente
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