Fellow monks,

I have an array in the following format:

my @dataArray = (\@inputValue1,\@outputValue1,\@inputValue2,\@outputVa
+lue2..)

[download]

to the tune of 1700 pairs of input/output pairs (read in from a file). Unfortunately, these data are ordered in the file, whereas I want them random. This code:

# Subroutine to jumble the data
sub jumble
{
        for (1..50)
        {
                my $endpoint = int(rand(scalar @dataArray -1));
                if ($endpoint % 2){$endpoint++}
                my (@tempArray) = (@dataArray[$endpoint..(scalar @data
+Array-1)]);
                push @tempArray,(@dataArray[0..$endpoint-1]);
                @dataArray = @tempArray;
        }
}

[download]

does the job of randomizing them well enough, but is there a better way?

TIA.

Update: In case I haven't made it clear, \@inputValue1 and \@outputValue1 need to remain adjacent, but I'm randomising the order so that input/output pair 1 is not necessarily adjacent to input/output pair 2.

--------------------------------------------------------------

g0n, backpropagated monk

In reply to Randomising the order of an array by g0n

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