Frank E Harrell Jr a �crit :
walmir-rodrigues wrote:
Dear Fellows,
How can I do to proced a step wise regression in R, if it�s possible ?
Thanks,
Walmir
Here is an easy approach that will yield results only slightly less
valid than one actually using the response variable:
x <- data.frame(x1,x2,x3,x4,..., other potential predictors)
x[,sample(ncol(x))]
:-) -Frank
competing for the "fortune" award ?... ;-)
Renaud
--
Dr Renaud Lancelot, v�t�rinaire
C/0 Ambassade de France - SCAC
BP 834 Antananarivo 101 - Madagascar
e-mail: [EMAIL PROTECTED]
tel.: +261 32 40 165 53 (cell)
+261 20 22 665 36 ext. 225 (work)
+261 20 22 494 37 (home)
______________________________________________
[email protected] mailing list
https://stat.ethz.ch/mailman/listinfo/r-help
PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
