[R] Populate a matrix

[R. Michael Weylandt]

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.cabrera at 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
>
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