How are they arranged currently? And should they be all one set of levels or different factor sets?
Michael On Tue, May 8, 2012 at 12:32 PM, ya <xinxi...@163.com> wrote: > Hi everyone, > > Is there anyway I can convert more than 400 numeric variables to categorical > variables simultaneously? > > as.factor() is really slow, and only one at a time. > > Thank you very much. > > ya > [[alternative HTML version deleted]] > > ______________________________________________ > 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. ______________________________________________ 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.
