Search for corresponding node in a regression tree using rpart

Question

I\'m pretty new to R and I\'m stuck with a pretty dumb problem.

I\'m calibrating a regression tree using the rpart package in order to do some class

Answer 1

You can use the partykit package:

fit <- rpart(Kyphosis ~ Age + Number + Start, data = kyphosis)

library("partykit")
fit.party <- as.party(fit)
predict(fit.party, newdata = kyphosis[1:4, ], type = "node")

For your example just set

predict(as.party(tree), newdata = validationData, type = "node")