topic Chi-Merge Discretization in Statistical Procedures

Chi-Merge Discretization

CMC — Fri, 07 Oct 2011 13:31:23 GMT

Does anybody have some code to run a Chi-Merge Discretization on a dataset?

Chi-Merge Discretization

SteveDenham — Fri, 07 Oct 2011 18:28:43 GMT

</soapbox on

Any time I get asked to convert well behaved continous data into discrete classes/clusters/dichotomies, I begin to wonder--why isn't the more powerful continuous case good enough? What could be gained by lumping stuff together? I realize that you can't offer someone 0.82457 of a credit card, and I have been doing linear models with class variables since mammoths roamed, so I'm not totally against dichotomizing a response, or categorizing into classes, but I always wonder.

/soapbox off>

Steve Denham

Chi-Merge Discretization

Tenno1 — Fri, 28 Oct 2011 14:46:14 GMT

Contact me at rbettinger@modernanalytics.com and i'll send you a program that i wrote. also, you can read my paper "ChiD - A X^2 Discretization Algorithm" that I presented at WUSS 2011. Here's the link:http://www.wuss.org/proceedings11/