I'm not quite sure I understood the second queston but does this work? subset(temp, xx$v2==-9)
subset(temp, xx$v2!= -9) --- On Sun, 11/8/09, Ashta <sewa...@gmail.com> wrote: > From: Ashta <sewa...@gmail.com> > Subject: [R] look up and Missing > To: r-h...@stat.math.ethz.ch > Received: Sunday, November 8, 2009, 10:23 AM > HI R-Users > > Assume that I have a data frame 'temp' with several > variables (v1,v2,v3,v4,v5.). > > v1 v2 v3 v4 v5 > 1 > 2 3 3 6 > 5 2 4 2 > 0 > 2 > -9 5 4 3 > 6 > 2 1 3 4 > > 1, I want to look at the entire row values of when v2 =-9 > like > 2 > -9 5 4 3 > > I wrote > K<- list(if(temp$v2)==-9)) > > I wrote the like this but it gave me which is > not correct. > False false false false false > > 2. I want assign that values as missing > if v2 = -9. (ie., I want > exclude from the analysis > > How do I do it in R? > > Thanks in advance > > ______________________________________________ > 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. > __________________________________________________________________ Yahoo! Canada Toolbar: Search from anywhere on the web, and bookmark your favourite sites. Download it now http://ca.toolbar.yahoo.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.