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





--

PO SU
mail: desolato...@163.com 
Majored in Statistics from SJTU

At 2014-11-12 11:55:08, "Bharat Bargujar" <bharatbargu...@gmail.com> wrote:
 


HI,
 
Try this:
 
results <- predict(rp,b,type = "vector")
 
Regards,
Bharat
 


On 12 November 2014 09:17, PO SU <rhelpmaill...@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: desolato...@163.com

Majored in Statistics from SJTU

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