I just figured out a way to do this:
rep.vec <- function(X,n) return(t(array(rep(X,n),c(length(X),n))))
Then, apply(MyMatrix, 2, rep.vec,2)
Is there a better way ? Is there an internal function to repeat a vector or
matrix ?
Thanks a lot.
----- Original Message -----
From: Tong Wang <[EMAIL PROTECTED]>
Date: Friday, September 29, 2006 11:23 pm
Subject: How to repeat vectors ?
To: [email protected]
> Hi,
> If I have a matrix , say a11 a12
> a21 a22
> Is there a routine to get: a11 a12
> a11 a12
> a21 a22
> a21 a22
>
> Thanks a lot for any help.
>
> best
>
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