Nicole Seitz wrote:
>
> hi there!
Hello,
> I've got a problem with a complex data structure and hope you can help me.
>
> I know that I can't have a hash whose values are arrays. So I tried to
> build a hash of references to arrays.
>
> I guess I've made some mistakes .
>
> This is what my hash looks like:
>
> %myHash = ();
> # lots of code here
> $myHash{"245"} = [[$len245oa,$pos,$tag245oa]];
^^ ^^
This is a Hash of Arrays of Arrays. In other words, that is equivalent
to:
$myHash{245}[0][0] = $len245oa;
$myHash{245}[0][1] = $pos;
$myHash{245}[0][2] = $tag245oa;
> #some code here
>
> $myHash{"856"} = [[$len856_41,$pos,$tag856_41]];
^^ ^^
Same here.
> #some code here
> #now I have to add a new element(which is also an array) to the outer
> anonymous array
> #Is the following correct?
> $myHash{"856"}[1] = [$len856_42,$pos,$tag856_42];
>
> #Then I'd like to iterate over the array of sorted hash keys(no problem)
>
> @sortedKeys = sort keys %myHash;
^^^^
Are you _sure_ you need to sort the keys?
> foreach $key (@sortedKeys) {
> # now I have to change the value of each second element of the inner
> arrays($myHash{$key} [$index][1] ???)
> #Unfortunately, I don't know how to do this. I guess, first, I need
> another loop.But then how to access the second element and overwrite it???
foreach my $key ( sort keys %myHash ) {
# now I have to change the value of each second element of the
inner
foreach my $item ( @{$myHash{$key}} ) {
$item->[1] = 'something';
}
}
John
--
use Perl;
program
fulfillment
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