1. RE: Ordinal data - Regression Trees & Proportional Odds
(Liaw, Andy)
AFAIK there's no implementation (or description) of tree algorithm that handles ordinal response.
Regression trees with an ordinal response variable can be computed with SPSS Answer Tree 3.0. Andreas Christmann ----------------------------------------------------------------------------- Andreas Christmann University of Dortmund Department of Statistics 44221 Dortmund Germany ----- Phone: +231 / 755 3180 Email: christmann at statistik.uni-dortmund.de WWW: http://www.statistik.uni-dortmund.de/de/content/einrichtungen/lehrstuehle/datenanalyse.html