[R] Dice simulation: Getting rep to re-evaluate sample()?
Richard M. Heiberger
rmh at temple.edu
Mon Oct 8 20:16:35 CEST 2007
rep(
sum(sample(1:6,100,replace=T)),
times=10)
Read carefully what you wrote. You asked R to sum a single sample, then
make
ten copies of the sum.
You need to take ten samples, then sum each. apply() would be helpful.
-----Original Message-----
I'm trying to get R to simulate the sum of the values on 10 fair dice
(yes, it's related to a homework problem, but is not the problem
itself). I tried to do this:
> rep(sum(sample(1:6,100,replace=T)), times=10)
[1] 341 341 341 341 341 341 341 341 341 341
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