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how to use the rpart model to predict new data frame?

OK , i tried predict(rp,b) but showed me a result which i can't understand, now it's the argument ?type="vector" worked.





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PO SU
mail: desolator88 at 163.com 
Majored in Statistics from SJTU
At 2014-11-12 11:55:08, "Bharat Bargujar" <bharatbargujar at gmail.com> wrote:
HI,
?
Try this:
?
results <- predict(rp,b,type = "vector")
?
Regards,
Bharat
?
On 12 November 2014 09:17, PO SU <rhelpmaillist at 163.com> wrote:
Dear expeRts,

? ? Now i have a ?train ?dataset a ?and ?test dataset b , i ?using the following codes:

rp<-rpart(y~.,data=a,method="class")

plot(rp)

text(rp)

but how can i use the trained model to predict b?

TKS.













--



PO SU

mail: desolator88 at 163.com

Majored in Statistics from SJTU

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