oh boy, what a mistake. Ok, I will try that and look up what it means afterward. Thank you.
MUHC-Research wrote: > > Hi, > > Try > > /rowSums(M==0)/ > > This should work just fine. > > Cheers, > > Luc > > onyourmark wrote: >> Hi. I have an n x m matrix M some of who's entries are zeros. I want to >> know >> how many zeros there are in each row -perhaps stored in a 1 x n vector >> which lists the number of zeros for each row of M. >> >> Before I had a vector V and I was able to get the number of zeros in V by >> doing length(V[ V==0]) but when I try something similar for M, like M[ >> M==0] >> it creates a vector not a matrix and so this does not work. Does anyone >> have >> a solution to this? >> >> Thank you. >> > > ______________________________________________ > 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. > > -- View this message in context: http://www.nabble.com/number-of-zeros-in-a-matrix--row-by-row-tp22893147p22909577.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.
