Neither. Unless I misjudge, you really really need to do your homework and read some basic R documentation -- e.g. An Intro to R, which ships with R (and also the Posting Guide) -- before posting here further.
-- Bert Bert Gunter Genentech Nonclinical Biostatistics (650) 467-7374 "Data is not information. Information is not knowledge. And knowledge is certainly not wisdom." Clifford Stoll On Tue, Sep 23, 2014 at 8:10 AM, carol white <wht_...@yahoo.com> wrote: > Hi, > If I want to divide the column of a matrix by the sum of the column, should I > loop over the columns or can I use apply family? > > > Regards, > > Carol > [[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.
