"Carlos J. Gil Bellosta" <c...@datanalytics.com> wrote > >I had a conversation with a guy working in a "business intelligence" >department at a major Spanish bank. They rely on recursive partitioning >methods to rank customers according to certain criteria. > >They use both SAS EM and Salford Systems' CART. I have used package R >part in the past, but I could not provide any kind of feature comparison >or the like as I have no access to any installation of the first two >proprietary products. > >Has anybody experience with them? Is there any public benchmark >available? Is there any very good --although solely technical-- reason >to pay hefty software licences? How would the algorithms implemented in >rpart compare to those in SAS and/or CART? > >Best regards, >
Hi I've used CART and a few different R packages - tree, rpart, rparty. I can't comment on the algorithms - I'm not qualified to judge, and I think the ones in CART are proprietary. One big difference is that the output from CART is beautiful with minimal fuss. Presentation quality, multicolor, multipage tree diagrams with the default settings. Another was speed - I am not sure I was doing everything right in R, but for one problem I had that had about 500 variables, R was quite slow, and CART blitzed through it. Another big difference is the price. I got CART for a reasonable fee, as I was working at a university, but the commercial price is very high (well into the thousands of dollars, if I recall correctly). Peter Peter L. Flom, PhD Statistical Consultant www DOT peterflomconsulting DOT com ______________________________________________ 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.
