On 05/07/2011 2:25 PM, Joshua Wiley wrote:
Hi Ana,
Look at the documentation for ?sample, specifically, the "prob"
argument. In your case this should work:
sample(c(0,1), 100, replace = TRUE, prob = c(.3, .7))
note that you may not have *exactly* 70% 1 and 30%, in any given sample.
And if you want exact counts, you can use sample to permute a vector.
For example:
sample(rep(0:1, c(30, 70)))
Duncan Murdoch
HTH,
Josh
On Tue, Jul 5, 2011 at 11:21 AM, Ana Kolar<annako...@yahoo.com> wrote:
> Hi there,
>
> I guess this is an easy one, but still:
>
> I would like to randomly sample 0s and 1s but in a way that I end up having
for example 70% of 1s and the rest of 0s and not 50:50 as this function does:
sample(c(0,1), 100, replace = TRUE)
>
> Any recommendations?
>
>
> Many thanks!
>
> Ana
> [[alternative HTML version deleted]]
>
>
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