Thanks, problem solved. On Thu, Jun 7, 2012 at 1:58 PM, Daisy Englert Duursma <daisy.duur...@gmail.com> wrote: > Hello and thanks for helping. > > #some data > L3 <- LETTERS[1:3] > dat1 <- data.frame(cbind(x=1, y=rep(1:3,2), fac=sample(L3, 6, replace=TRUE))) > > > #When x==1 and y==1 I want to replace the 1 values with NA > > #I can select the rows I want: > dat2<-subset(dat1,x==1 & y==1) > #replace the 1 with NA > dat2$x<-rep(NA,nrow(dat2) > dat2$y<-rep(NA,nrow(dat2) > > #select the other rows and rbind everything back together > #This is where I get stuck > > #The end dataframe will look something like: > > x y fac > NA NA B > NA NA A > 1 2 C > 1 3 C > 1 2 C > 1 3 A > > #Is there a better way to do this where I do not need to subset > perhaps using lapply? > > > Thanks, > Daisy > > -- > Daisy Englert Duursma > Department of Biological Sciences > Room E8C156 > Macquarie University, North Ryde, NSW 2109 > Australia > > Tel +61 2 9850 9256
-- Daisy Englert Duursma Department of Biological Sciences Room E8C156 Macquarie University, North Ryde, NSW 2109 Australia Tel +61 2 9850 9256 ______________________________________________ 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.
