P. Branco wrote: >> I have used the dudi.mix method from the ade4 package, but when I do the >> $index it shows >> me that R has considered my variables as quantitative.
>> What should I do? You should make sure that they are encoded as ordered factors, which has nothing to do with ade4's dudi.mix(). ## ?ordered Mark. P.Branco wrote: > > Hi, > > I want to do a pca using a set of variables which are ordered. I have used > the dudi.mix method from the ade4 package, but when I do the $index it > shows me that R has considered my variables as quantitative. > > What should I do? > -- View this message in context: http://www.nabble.com/How-to-do-a-PCA-with-ordered-variables--tp25491950p25491969.html Sent from the R help mailing list archive at Nabble.com. ______________________________________________ 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.