Try this:
x <- sample(0:1, rep = TRUE, 1e6, prob=c(0.4, 0.6))
sample(which(x == 1), 1)
On Mon, Apr 28, 2008 at 1:12 PM, <[EMAIL PROTECTED]> wrote:
>
> I have a vector consisting of zeroes and ones, e.g. 101001.
>
> I would like to pick a random element from this vector equal to one. In
> the
> e
I have a vector consisting of zeroes and ones, e.g. 101001.
I would like to pick a random element from this vector equal to one. In the
example above, that means that only elements 1, 3, or 6 can be chosen.
Is there a simple and fast way to do that? (my vector of zeroes and ones is
very large)
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