Try something like this:

m <- matrix(1:20, ncol = 5)
cbind(m[, 1:3], matrix(1:16, ncol = 4), m[,4:ncol(m)])

On Tue, Jun 24, 2008 at 8:02 AM, Daren Tan <daren76@hotmail.com> wrote:

>
> Instead of prepend or append new columns to a matrix, how to insert them to
> a matrix ? For example, I would like to insert 3 new columns after the 5th
> column of matrix m.
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O

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