Hello, I very general question but probably usefull to others as well:
Is there any prebuild function that reorders a dataframe from: x1 x2 1 100 200 2 101 201 3 102 202 4 103 203 5 104 204 6 105 205 to 1 100 x1 2 101 x1 3 102 x1 4 103 x1 5 104 x1 6 105 x1 7 200 x2 8 201 x2 9 202 x2 10 203 x2 11 204 x2 12 205 x2 I found a way with: names <- rep(c("x1","x2"),c(length(x1),length(x2))) x <-c(x1,x2) data.frame(x,names) but probably there is already another function for doing such things more easily. Thank you Johannes -- ______________________________________________ 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.