Re: [R] selecting from a series of integers with pre-determined probabilities

?sample efficient enough?> system.time(z <- sample(1:5, 50, TRUE, prob=c(.05,.05,.05,.05,.8))) user system elapsed 0.120.020.14 > table(z) z 1 2 3 4 5 24800 24771 25039 25022 400368 > On Sat, Sep 20, 2008 at 3:43 PM, John Sorkin <[EMAIL PROTECTED]>

[R] selecting from a series of integers with pre-determined probabilities

R 2.6 Windows XP I need to select from the integers 1,2,3,4,5 with some pre-determined probability, e.g. probability of selecting 5 80%, probability of selecting 1 or 2 or 3 or 4 20%. Any suggestions for how I might accomplish this? I need to do it very efficiently as I will be doing it 500,0