Message-ID: <GOENJEALPPDFMBOMCKOJGENCCAAA.jean-noel.candau@avignon.inra.fr>
Date: 2004-02-09T10:24:39Z
From: Jean-Noel
Subject: Recursive partitioning with multicollinear variables
Dear all,
I would like to perform a regression tree analysis on a dataset with
multicollinear variables (as climate variables often are). The questions
that I am asking are:
1- Is there any particular statistical problem in using multicollinear
variables in a regression tree?
2- Multicollinear variables should appear as alternate splits. Would it be
more accurate to present these alternate splits in the results of the
analysis or apply a variable selection or reduction procedure before the
regression tree?
Thank you in advance,
Jean-Noel Candau
INRA - Unit? de Recherches Foresti?res M?diterran?ennes
Avenue A. Vivaldi
84000 AVIGNON
Tel: (33) 4 90 13 59 22
Fax: (33) 4 90 13 59 59