Re: [S] splitting in CART on other than residual sum of squares

Suzanne Cashman (scashman@empnet.com)
Wed, 6 May 1998 14:24:38 -0700


In response to my request to find functionality for splitting decisions in
CART on statistics other than least squares, several people wrote back
suggesting that I explore rpart (referenced below). Thank you to:
Kenton D. Juhlin juhlin.kd@pg.com
Beth Atkinson atkinson@mayo.edu
Professor Brian D. Ripley ripley@stats.ox.ac.uk
In addition, Professor Brian D. Ripley (ripley@stats.ox.ac.uk/~ripley/)
replied that he has written a clone of tree. In both cases the programmer
would need to write C code to alter the split criterion, and have the
ability to compile and link the code.

Rpart can be found at:

Unix:
http://www.stats.ox.ac.uk/pub/S/rpart.sh.gz
Windows
http://www.stats.ox.ac.uk/pub/SWin/RPart.zip
http://www.stats.ox.ac.uk/pub/SWin/RPartdoc.zip

http://lib.stat.cmu.edu/DOS/S/SWin.

Thanks!
Suzanne Cashman

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