I am not sure what you are trying to do in terms of the algorithm but there are a few problems with your code.

Firstly, you do push(my @chroma, $genea); and push(my @chromb, $geneb); inside the scope of the while ($ranpop) { ... } loop. That means that each time around the loop you create new lexically scoped arrays to push data onto and by the time you get to the return they are out of scope so inaccessible.

Secondly, I'm not sure what you are doing with the

my $center = 1;
...
while ($center--)
{
...
return ... ;
}

[download]

That loop is meaningless as it stands because it is going to terminate early with the return and would only run the once anyway. If your $center is more than 1 it will still do the same thing as the return will always leave the subroutine. Perhaps the return should me moved to after the loop.

Thirdly, if you want to return more than one array (or hashes for that matter) from a subroutine you must return them by reference because from the caller's point of view, the three arrays you return come back as one big list. Do it something like this.

sub makeArrays
{
    my @arrA = ( 1 .. 6 );
    my @arrB = qw{ fred joe bill pete };
    my @arrC = ( 1, 3, q{abc}, 8 );
    return \@arrA, \@arrB, \@arrC;
}

my ( $refToArrA, $refToArrB, $refToArrC ) = makeArrays();

my @newArrA = @$refToArrA;
my $elemTwoOfArrB = $refToArrB->[2];

[download]

I hope this is of use.

Cheers,

JohnGG

In reply to Re^3: Hash of Hash Redux by johngg
in thread Hash of Hash Redux by BioNrd

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