[R] SORT MATRIX

[Gabor Csardi]

M[ order(M[,1]), ]

G.

On Mon, Mar 10, 2008 at 01:56:45PM -0700, ermimi wrote:
> 
> I have a matrix with 2 columns and n row. I need sort the matrix by the first
> column but the second row must be sort in the same order that the first
> column. Somebody know how I can sort this matrix.
> Thanks very much
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-- 
Csardi Gabor <csardi at rmki.kfki.hu>    UNIL DGM