Re: [R] Oblique decision tree using mvpart

2008-09-03 Thread Achim Zeileis
On Wed, 3 Sep 2008, Clusty wrote: First, thanks for your answer. I find the description of mvpart package quite short: "Wrapper function for fitting and plotting rpart models " I agree that this could be improved. Then, I thought that mvpart was the package which seems closest to what I wou

Re: [R] Oblique decision tree using mvpart

2008-09-03 Thread Prof Brian Ripley
On Wed, 3 Sep 2008, Clusty wrote: First, thanks for your answer. I find the description of mvpart package quite short: "Wrapper function for fitting and plotting rpart models " Then, I thought that mvpart was the package which seems closest to what I would like to do (i.e. oblique decision t

Re: [R] Oblique decision tree using mvpart

2008-09-03 Thread Clusty
First, thanks for your answer. I find the description of mvpart package quite short: "Wrapper function for fitting and plotting rpart models " Then, I thought that mvpart was the package which seems closest to what I would like to do (i.e. oblique decision tree also named multivariate decision

Re: [R] Oblique decision tree using mvpart

2008-09-03 Thread Achim Zeileis
On Wed, 3 Sep 2008, Clusty wrote: I want to try oblique decision tree. I have found the mvpart package. In the What gave you the idea that mvpart was an implementation of oblique decision trees? It does not say so anywhere. help file, there is an example of the mvpart function using the sp

[R] Oblique decision tree using mvpart

2008-09-03 Thread Clusty
Hello, I want to try oblique decision tree. I have found the mvpart package. In the help file, there is an example of the mvpart function using the spider data set. However, when trying the example I do not obtain an oblique decision tree with separating rules such as p1+p2<5, but rather simple r