Try this: > x id n1 n2 n3 n4 n5 n6 1 1 3 4 7 8 10 2 2 2 4 1 2 4 3 10 3 3 7 0 0 0 0 8 4 4 10 1 0 0 2 3 5 5 11 1 0 0 0 5 > delete <- with(x, n2 == 0 & n3 == 0 & n4 == 0 & n5 == 0) > delete [1] FALSE FALSE TRUE FALSE FALSE > x[!delete,] id n1 n2 n3 n4 n5 n6 1 1 3 4 7 8 10 2 2 2 4 1 2 4 3 10 4 4 10 1 0 0 2 3 5 5 11 1 0 0 0 5 >
On Wed, Jan 13, 2010 at 5:15 PM, karena <dr.jz...@gmail.com> wrote: > > I have a file like this: > id n1 n2 n3 n4 n5 n6 > 1 3 4 7 8 10 2 > 2 4 1 2 4 3 10 > 3 7 0 0 0 0 8 > 4 10 1 0 0 2 3 > 5 11 1 0 0 0 5 > > what I want to do is: only if n2=0 and n3=0 and n4=0 and n5=0 then delete > the row. how can I do that? > > thank you, > > karena > -- > View this message in context: > http://n4.nabble.com/a-question-about-deleting-rows-tp1013403p1013403.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<http://www.r-project.org/posting-guide.html> > and provide commented, minimal, self-contained, reproducible code. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? [[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.
