> german_model <- rpart(formula = v21 ~., data = german, method = "class")
Error in rpart(formula = v21 ~ ., data = german, method = "class") :
could not find function "rpart"
已经安装了rpart了但是还是hui有这个问题,请教该怎么弄
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[问答] could not find function rpart 怎么解决 |
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