Is there a way to order data and subset it at the same time??
I want to sort all the members of group A by their values in column 3. (I'll then do the same for each subsequent group.) This could be done in a loop building up another vector, but I like to avoid loops in R. ------------------------------------- a <- temp[temp$group=="A",] a <- a[order(a[,3]),] temp[temp$group=="A",] <- a ------------------------------------------ Iid like to do this in a single step for each group. However, I can't figure out how to order and subset at the same time. This *does not work* but should illustrate what I'm trying to do temp[temp$group=="A",] <- temp[ temp$group=="A" & order(temp[temp$group=="A",3]) , ] Suggestions? -- Noah Silverman UCLA Department of Statistics 8208 Math Sciences Building Los Angeles, CA 90095 ______________________________________________ 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.
