From: Uwe Schmitt <schmitt@...>
Date: 2005-12-07T01:32:38+09:00
Subject: Re: Shuffling an array, sort_by{rand}'s bias (was Re: need some Ruby

|| 
|| >>>>> "U" == Uwe Schmitt <schmitt@num.uni-sb.de> writes:
|| 
|| U> If you use random as sorting key, the result of a<=>b
|| U> will differ each time you evaluate a<=>b. 
|| U> In my case I attach a random number to each item,
|| U> then I sort my list according to this number and remove
|| U> this 'decoration' afterwards.
|| 
||  run
|| 
||   ri Enum#sort_by
|| 
||  and see what it do.

Thanks. As I told you before I'm new to ruby ;-)

Greetings, Uwe