[R] can I rotate a matrix

[Henrique Dallazuanna]

Try this:

t(mat[3:1,])

On Thu, Mar 18, 2010 at 4:10 PM, dc896148 <cyr.derek at gmail.com> wrote:
>
> useR's,
> I want to be able to rotate a matrix 90 degrees, clockwise.  For example,
>> mat
>     [,1] [,2] [,3]
> [,1]   1    2     1
> [,2]   3    2     6
> [,3]   4    5     3
>
> I want to rotate it, so that it looks like this...
>     [,1] [,2] [,3]
> [,1]   4    3     1
> [,2]   5    2     2
> [,3]   3    6     1
>
> Does anyone know a quick and straightforward way to do this?
>
> Thanks in advance.
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-- 
Henrique Dallazuanna
Curitiba-Paraná-Brasil
25° 25' 40" S 49° 16' 22" O