Re: [R] rpart - predict terminal nodes for new observations
Hi Uwe: Thanks a lot for your reply. I contemplated the use of the predict() function but realized that it could not return what I needed (i.e., the terminal nodes and not the classes). I went back to the post of Professor Ripley (http://tolstoy.newcastle.edu.au/R/e4/help/08/07/17702.html) and did find a way to get the terminal nodes. I am showing this approach below in case other useRs face a similar problem. Many thanks. Tudor nodes - rpart:::pred.rpart(tree.prune,rpart:::rpart.matrix(es)) where tree.prune is the rpart object and es is the estimation data set. -- View this message in context: http://r.789695.n4.nabble.com/rpart-predict-terminal-nodes-for-new-observations-tp4630104p4630508.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
Re: [R] rpart - predict terminal nodes for new observations
On 15.05.2012 16:30, tudor wrote: Dear useRs: Is there a way I could predict the terminal node associated with a new data entry in an rpart environment? In the example below, if I had a new data entry with an AM of 5, I would like to link it to the terminal node 2. My searches led to http://tolstoy.newcastle.edu.au/R/e4/help/08/07/17702.html but I do not seem to be able to operationalize Professor Ripley's suggestions. Use the predict() function. Uwe Ligges Many thanks. Tudor tree.prune n= 2400 node), split, n, loss, yval, (yprob) * denotes terminal node 1) root 2400 779 0 (0.6754167 0.3245833) 2) AM 6.5 1428 254 0 (0.8221289 0.1778711) * 3) AM=6.5 972 447 1 (0.4598765 0.5401235) 6) P=10.39666 390 86 0 (0.7794872 0.2205128) * 7) P 10.39666 582 143 1 (0.2457045 0.7542955) * -- View this message in context: http://r.789695.n4.nabble.com/rpart-predict-terminal-nodes-for-new-observations-tp4630104.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
[R] rpart - predict terminal nodes for new observations
Dear useRs: Is there a way I could predict the terminal node associated with a new data entry in an rpart environment? In the example below, if I had a new data entry with an AM of 5, I would like to link it to the terminal node 2. My searches led to http://tolstoy.newcastle.edu.au/R/e4/help/08/07/17702.html but I do not seem to be able to operationalize Professor Ripley's suggestions. Many thanks. Tudor tree.prune n= 2400 node), split, n, loss, yval, (yprob) * denotes terminal node 1) root 2400 779 0 (0.6754167 0.3245833) 2) AM 6.5 1428 254 0 (0.8221289 0.1778711) * 3) AM=6.5 972 447 1 (0.4598765 0.5401235) 6) P=10.39666 390 86 0 (0.7794872 0.2205128) * 7) P 10.39666 582 143 1 (0.2457045 0.7542955) * -- View this message in context: http://r.789695.n4.nabble.com/rpart-predict-terminal-nodes-for-new-observations-tp4630104.html Sent from the R help mailing list archive at Nabble.com. __ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.
