How about this: p0 <- 1:4
matrix( c( rep( c(p0, rep(0, 4)) , times=3) , p0) , 7, 4) Of course, it would take some effort to generalize it to different lengths for p0. -Don -- Don MacQueen Lawrence Livermore National Laboratory 7000 East Ave., L-627 Livermore, CA 94550 925-423-1062 On 3/6/17, 8:18 AM, "R-help on behalf of Peter Thuresson" <r-help-boun...@r-project.org on behalf of peter.thures...@umea.se> wrote: Hello, Is there a function in R which can transform, let say a vector: c(1:4) to a matrix where the vector is repeated but "projected" +1 one step down for every (new) column. I want the output below from the vector above, like this: p<-c(1,2,3,4,0,0,0,0,1,2,3,4,0,0,0,0,1,2,3,4,0,0,0,0,1,2,3,4) matrix(p,7,4) best regards / Peter [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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. ______________________________________________ R-help@r-project.org mailing list -- To UNSUBSCRIBE and more, see 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.