What you want is: book$r<-ifelse(is.na(book$r), 10,book$x+20)
On Fri, Oct 9, 2009 at 5:46 AM, premmad <mtechp...@gmail.com> wrote: > > I have one column > x > 97 > 94 > 91 > 90 > NA > NA > NA > NA > I tried > book$r<-ifelse(book$x!=NA,book$x+20,10) > I expect to get the result as follows > 107 > 104 > 91 > 90 > 10 > 10 > 10 > 10 > But what i was getting is empty column of variable r.How to solve this > > -- > View this message in context: > http://www.nabble.com/Handling-missing-data-tp25539335p25818365.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. > -- Jim Holtman Cincinnati, OH +1 513 646 9390 What is the problem that you are trying to solve? ______________________________________________ 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.