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free_x
2011 Mar 06
1
transaction list transformation to use rpart.
...1 1 0 1
cust2 0 0 1 0 1
cust3 0 1 0 0 0
...
However the as.data.frame(a) transforms the matrix into a numeric
data.frame so when I implement the rpart algorithm it automatically returns
a regression classification tree.
calling rpart like
names<-colnames(b)
tree_X.9911 <- rpart(X.9911 ~ .,
data=b[, c(names)],
method="class")
and returns:
1) root 20000 625 0 (0.96875000 0.03125000)
2) X.9342< 0.5 19598 311 0 (0.98413103 0.01586897) *
3) X.9342>=0.5 402 88 1 (0.21890547 0.78109453)
6) X.9984>=0.5 81 7 0 (0.91358025...