[R] rexp question

From: Spencer Jones <ssj1364_at_gmail.com>
Date: Wed 16 Aug 2006 - 04:14:58 EST

I am using rexp to generate several exponential distributions. I am passing rexp a vector of rates , r. I am wanting to simulate a sample of size 200 for each rate so the code looks like: rexp(n=200*length(r),rate=r) this gives me a vector of the random exponential variables, but they are all disjointed b/c rexp goes through and simulates an exponential variable for each rate and it does that 200 times, is there any way to get it to do it the oppisite way,i.e., 200 times in a row for each rate. I have already tried using a for loop but it is slow.



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