How to specify minbucket in caret train for?

Question

For CART model, caret seems to only provide tunning of complexity parameter. Is there way to tune other parameters such as minbucket?

Answer 1

传递给分类或回归例程的参数包含在dots参数中。

如果要包含minbucket，control内应包含参数train。

例如：

library("caret")

train(Kyphosis ~ Age + Number + Start, data = kyphosis, 
      method = "rpart",
      tuneGrid = data.frame(cp = c(0.01, 0.05)),
      control = rpart.control(minsplit = 10, minbucket = 5))

如果你想调整minbucket，你必须手动完成。