Try this: rowSums(!is.na(x))
On Tue, Dec 29, 2009 at 11:49 AM, Verena Weber <verenawe...@gmx.de> wrote: > Hi, > > I have a n*m matrix and would like to count the number of elements not equal > to NA in a ROW. > > e.g. > > x 1 2 3 NA 10 > y 2 NA 8 9 NA > > Which function can I use to obtain > "4" for row x and > "3" for row y? > > Could you help me? I found some functions for columns but not for rows... > > Thank you very much! > > ______________________________________________ > 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. > -- Henrique Dallazuanna Curitiba-Paraná-Brasil 25° 25' 40" S 49° 16' 22" O ______________________________________________ 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.
