[R] permutation of rows of a matrix

John Fox jfox at mcmaster.ca
Sat Apr 15 15:40:33 CEST 2006

Dear Jose,

M[sample(m, m),] will randomly permute the rows of M. [You probably could
have figured this out via help.search("permutation"), which would have led
you to sample().]


John Fox
Department of Sociology
McMaster University
Hamilton, Ontario
Canada L8S 4M4

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of javargas
> Sent: Saturday, April 15, 2006 7:53 AM
> To: r-help at stat.math.ethz.ch
> Subject: [R] permutation of rows of a matrix
> How can I generate a random permutation between rows of a 
> matrix M (of m rows and n columns)?
> Thanks for your help,
> Jose
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