[R] Trees

Torsten Hothorn Torsten.Hothorn at rzmail.uni-erlangen.de
Mon Jan 23 16:51:03 CET 2006


On Mon, 23 Jan 2006, Stephen wrote:

> Hi.,
>
> I would like to conduct a CHAID tree analysis - Chi-square Automatic
> Interaction Detector.
>
> >From what I can make out from MASS, tree, rpart, and a quick search it
> isn't available
> as a package.
>
> Is that correct or have I missed it?

correct, it is not available out-of-the-box.

> Has anyone an available implementation of it?

if you aim at unbiased variable selection you might want to checkout the
`party' package, especially the `ctree' function.

Best,

Torsten

>
> Thanks
>
> Stephen
>
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