Hi Judith,

Also you can try

NSIM=20  # Number of samples
res=apply(matrix(rep(rep(LETTERS[1:2],12),NSIM),ncol=NSIM),2,sample)
res

I hope this helps.


Jorge Iván Vélez



On 2/5/08, Daniel Dunn <daniel@dunncapital.com> wrote:
>
> sample(rep(LETTERS[1:2],12), 24, replace=F)
>
> -----Original Message-----
> From: r-help-bounces@r-project.org [mailto:r-help-bounces@r-project.org]
> On
> Behalf Of Judith Flores
> Sent: Tuesday, February 05, 2008 1:52 PM
> To: RHelp
> Subject: [R] Sampling
>
> Hi there,
>
>   I want to generate different samples using the followindg code:
>
>
> g<-sample(LETTERS[1:2], 24, replace=T)
>
>   How can I specify that I need 12 "A"s and 12 "B"s?
>
> Thank you,
>
> Judith
>
>
>
>
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