|Date:||Wed, 30 Jul 2008 10:24:57 -0400|
From: ""Chris Charley""
From: "Bobby" Newsgroups: perl.beginners Subject: rand() Hi all,How do I use the rand function to print out more than one random number for an array? In the example script below i have an array @nums with a list of numbers; how do i print out more than one random numbers from that list (@nums)? Thanks.You can use 'shuffle' from List::Util. #!/usr/bin/perl use strict; use warnings; use List::Util qw/ shuffle /; my $max = 3; my @nums = ("10000","10002","10004","10005","10006","140000","1500000"); my @winner = (shuffle @nums)[0 .. $max - 1]; print "@winner";'shuffle' does what its name says - shuffles the list items. You will get no duplicates.Chris
Just to clarify a possible misunderstanding. There will be no duplicates only if there are no duplicates in the original array. 'shuffle' doesn't filter out duplicates - it just shuffles the list.
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