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Importance measure in Rpart or Tree
Shuguang Chen
·
Jul 23, 2001
·
r-help
Hi, all I wonder whether anyone can tell me whether there is an importance measure of variables for classification and regression trees in Rpart or Tree. I know Tree in the SAS Enterprise Miner has importance table where list all...
Missing value in Rpart
Shuguang Chen
·
Aug 2, 2001
·
r-help
Hi, all Our understanding of how classification trees in Rpart treat missing is that if the variable is ordinal(continous), Rpart, by default, imputes a value for missing. How do we do the classification tree and tell Rpart not to...
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