I would suggest looking at the documentation found in Technical Report #61 in our department series. http://mayoresearch.mayo.edu/mayo/research/biostat/ The formulas for priors, losses, etc in Gini splitting are such that I can't deduce them myself from the source code (and I wrote it), but need to have the document.
Terry T. ______________________________________________ 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.