[R] sample function with different proportions

[Joshua Wiley]

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.

HTH,

Josh

On Tue, Jul 5, 2011 at 11:21 AM, Ana Kolar <annakolar at 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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-- 
Joshua Wiley
Ph.D. Student, Health Psychology
University of California, Los Angeles
https://joshuawiley.com/