[R] Help on Random forest [Broadcast]
Liaw, Andy
andy_liaw at merck.com
Wed Oct 11 14:53:37 CEST 2006
Do provide a reproducible example, as the Posting Guide suggests.
Try:
library(randomForest)
example(predict.randomForest)
iris.pred <- predict(iris.rf, iris[ind == 2,], nodes=TRUE)
str(iris.pred)
attr(iris.pred, "nodes")
Andy
From: Rupendra
>
> Hello all,
>
> I am trying to explore random forest in R. What I want to do
> is get the node number in which the case falls in the tree of
> random forest. For that I am calling the predict method as:
>
> learn.pred <- predict (learn.rf,
> newdata=learn.data.x,norm.votes= TRUE,predict.all = TRUE,
> nodes= TRUE,type="response")
>
> Studying the manual of random forest, I suppose that
> learn,pred$nodes should contain the node numbers, but there
> is no attributes called nodes in learn.pred object.
>
>
>
> I am not much experienced with R. Please help me to resolve
> this issue.
>
>
>
> Thanks in advance,
>
> Rupendra
>
>
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