Thanks, yes, understand that PARTY offers a lot lot more than CHAID.
mmm, allow me to rephrase it.
If I am looking for something similar to CART (to grow tree and prune back)
and CHAID (using sig test to stop the tree), I can use RPART and PARTY
respectively?
And are there any more other R packages that offer improved CART/CHAID
technqiues?
Thanks.
----
Chua Siang Li
Consultant - Operations Research
Acceval Pte Ltd
Tel: 6297 8740
Email: siang.li.chua at acceval-intl.com
Website: www.acceval-intl.com
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--------- Original Message --------
From: "Prof Brian Ripley" <ripley at stats.ox.ac.uk>
To: "Chua Siang Li" <siang.li.chua at acceval-intl.com>
Cc: r-help at r-project.org
Subject: Re: [R] CART and CHAID
Date: 07/21/08 15:17
On Mon, 21 Jul 2008, Chua Siang Li wrote:
> Can I say that RPART is a modified algo of CART and PARTY a modified of
> CHAID?
Not truthfully. CART is a trademark of commercial software. rpart (sic)
is similar but not 'modified' from anything -- it is an independent
implementation of the ideas in Breiman, Friedman, Olshen and Stone (with
some extra ideas by Terry Therneau and others).
party (sic) is very much more general than CHAID.
> Thanks.
> ----
> Chua Siang Li
> Consultant - Operations Research
> Acceval Pte Ltd
> Tel: 6297 8740
> Email: [1]siang.li.chua at acceval-intl.com
> Website: [2]www.acceval-intl.com
--
Brian D. Ripley, [3]ripley at stats.ox.ac.uk
Professor of Applied Statistics, [4]http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
References
1. mailto:siang.li.chua at acceval-intl.com
2. http://www.acceval-intl.com/
3. mailto:ripley at stats.ox.ac.uk
4. http://www.stats.ox.ac.uk/~ripley/