Hi Rachel,

Here is a suggestion:

index <- sample(100)
mysample <- gly[index, ]
mysample

See ?sample for more information.

HTH,
Jorge


On Fri, Nov 13, 2009 at 5:20 PM, Hayes, Rachel M <> wrote:

> Hi All,
>
>
>
> I want to take a simple random sample from a large dataset, gly, but I'm
> getting an error message.  Any help?
>
>
>
> dim(gly)
>
> [1] 112371     37
>
> > s1 <- sample(gly,100)
>
> Error in `[.data.frame`(x, .Internal(sample(length(x), size, replace,  :
>
>
>  cannot take a sample larger than the population when 'replace = FALSE'
>
>
>
> Thanks,
>
>
>
> Rachel
>
>
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>
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