[R] how to sort columns in a matrix?

Stefano Calza stecalza at tiscali.it
Wed Jul 9 17:56:33 CEST 2003

On Wed, Jul 09, 2003 at 05:39:31PM +0200, David Andel wrote:


if you want to sort in alphabical order the columns of the matrix you colud do this

aaa <- aaa[,sort(colnames(aaa))]

Is it what you want?



> Hi
> I am struggling in finding a way to sort columns in a matrix. Can anyone help me, please?
> Thanks a lot,
> David
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