From: Kyle Schmitt <kyleaschmitt@...>
Date: 2007-08-31T01:32:36+09:00
Subject: Re: Need help randomly selecting unique values from an array

You could port this code over from C...
http://xkcd.com/221/


OK ok seriously though.
rand(foo.length) will randomly pick any one of them, but you want to
ignore index zero so
rand(foo.length -1 ) + 1 should do the trick.

This is a slightly... stupid way of doing it, but considering the size
of the data, it's a choice of what's more stupid, generating random
numbers until you get two that aren't the same, or something like
this..

number1 = foo[rand(foo.length-1)+1]
foo2=foo-[number1]
number2 = foo2[rand(foo2.length-1)+1]