On 21 Jan 2014, at 15:58 , Jeff Newmiller <jdnew...@dcn.davis.ca.us> wrote:
> You are mis-using factors. Would you pretend that women do not exist just > because your sample happens to include only men? > > If you really need to ignore those other levels, convert your factor to > character and summarize those values. Actually, just factor(fff) will do. Or droplevels(fff). -- Peter Dalgaard, Professor Center for Statistics, Copenhagen Business School Solbjerg Plads 3, 2000 Frederiksberg, Denmark Phone: (+45)38153501 Email: pd....@cbs.dk Priv: pda...@gmail.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.
