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: [EMAIL PROTECTED] Website: www.acceval-intl.com This message and any attachments (the "message") are intended for the designated recipient only and may contain information that is confidential and privileged. If you are not the intended recipient, please notify the sender and delete all its contents. Any use , reliance on, reference to, review , disclosure or copying of the message and the information it contains is prohibited.
--------- Original Message -------- From: "Prof Brian Ripley" <[EMAIL PROTECTED]> To: "Chua Siang Li" <[EMAIL PROTECTED]> Cc: r-help@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: [EMAIL PROTECTED] > Website: [2]www.acceval-intl.com -- Brian D. Ripley, [EMAIL PROTECTED] 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:[EMAIL PROTECTED] 2. http://www.acceval-intl.com/ 3. mailto:[EMAIL PROTECTED] 4. http://www.stats.ox.ac.uk/~ripley/ ______________________________________________ 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.
