Re: [R] Regression trees with an ordinal response variable

2007-02-03 Thread Torsten Hothorn
On Fri, 2 Feb 2007, Henric Nilsson (Public) wrote: > Torsten, consider the following: > >> ### ordinal regression >> mammoct <- ctree(ME ~ ., data = mammoexp) > Warning message: > no admissible split found >> ### estimated class probabilities >> treeresponse(mammoct, newdata = mammoexp[1:5, ]) >

Re: [R] Regression trees with an ordinal response variable

2007-02-02 Thread Torsten Hothorn
On Fri, 2 Feb 2007, Henric Nilsson (Public) wrote: > Den Fr, 2007-02-02, 06:03 skrev Stacey Buckelew: >> Hi, >> >> I am working on a regression tree in Rpart that uses a continuous response >> variable that is ordered. I read a previous response by Pfr. Ripley to a >> inquiry regarding the abili

Re: [R] Regression trees with an ordinal response variable

2007-02-02 Thread Henric Nilsson (Public)
Den Fr, 2007-02-02, 06:03 skrev Stacey Buckelew: > Hi, > > I am working on a regression tree in Rpart that uses a continuous response > variable that is ordered. I read a previous response by Pfr. Ripley to a > inquiry regarding the ability of rpart to handle ordinal responses in > 2003. At that

[R] Regression trees with an ordinal response variable

2007-02-01 Thread Stacey Buckelew
Hi, I am working on a regression tree in Rpart that uses a continuous response variable that is ordered. I read a previous response by Pfr. Ripley to a inquiry regarding the ability of rpart to handle ordinal responses in 2003. At that time rpart was unable to implement an algorithm to handle or