The Fisher-Yates shuffle is easy to code up: 
# randomly permutate @array in place
sub fisher_yates_shuffle
{
    my $array = shift;
    my $i = @$array;
    while ( --$i )
    {
        my $j = int rand( $i+1 );
        @$array[$i,$j] = @$array[$j,$i];
    }
}

fisher_yates_shuffle( \@array );    # permutes @array in place

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In reply to Re: How do I shuffle an array? by vroom
in thread How do I shuffle an array? by vroom

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