One more version: somewhere in the middle of the explicitness scale, matrix(rep(y, times = length(x)), nrow=length(y))
On Wed, Oct 5, 2011 at 12:17 PM, R. Michael Weylandt <michael.weyla...@gmail.com> wrote: > matrix(rep(y, each=length(x)), nrow=length(y), byrow=TRUE) > or less explicitly > matrix(y, nrow=length(y),ncol=length(x)) > Michael > > On Wed, Oct 5, 2011 at 12:11 PM, <fernando.cabr...@nordea.com> wrote: >> Hi guys >> >> I have vectors x <- c(1,2,3,4) and y <- c(4,3,9) and would like to generate >> a matrix which has 3 rows (length(y)) and 4 columns (length(x)), and each >> row is the corresponding y element repeated length(x) times. >> >> 4,4,4,4 >> 3,3,3,3 >> 9,9,9,9 >> >> Thanks. >> >> Fernando Álvarez >> >> ______________________________________________ >> 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. >> > ______________________________________________ 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.