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]]