[R] How to personalize the rpart function: t.default(x)

Simone Vantini vantini at mate.polimi.it
Thu Sep 2 00:58:43 CEST 2004

I'm trying to personalize the rpart function by introducing a
list('init','split','eval') in the argument method. But I receive an error
message:"Error in t.default(x): argument is not a matrix".
Can anyone tell me what the argument of this function is or where this
function appears in the rpart function.Thanks Simone Vantini

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