Beefy Boxes and Bandwidth Generously Provided by pair Networks
Just another Perl shrine

Re: Using += in array context

by jeroenes (Priest)
on Jun 05, 2001 at 18:18 UTC ( #85818=note: print w/replies, xml ) Need Help??

in reply to Using += in array context

At first, I was tempted to overload +=, but than I realised that was not going to work, as hashes don't have any garanteed order.

So you really have to stick with the code you already have. Hmm. You always can write a sub, which names the function out loud:

sub add_hash_slice{ my $slice = shift or return undef; my $hash1 = shift or return undef; my $hash2 = shift or return $hash1; $hash1->{$key} += $hash2->{$key} for my $key( @$slice ); return $hash1; } #call add_hash_slice( \@fields, \%totals, \%delta);
Alternativeley, if you have only values in the 'table', you can load it into PDL.
use PDL; my $a = pdl $AoA; $total1=sum($a->(':,0'));
Hope this helps

"We are not alone"(FZ)

Log In?

What's my password?
Create A New User
Node Status?
node history
Node Type: note [id://85818]
and all is quiet...

How do I use this? | Other CB clients
Other Users?
Others drinking their drinks and smoking their pipes about the Monastery: (5)
As of 2018-03-17 06:21 GMT
Find Nodes?
    Voting Booth?
    When I think of a mole I think of:

    Results (223 votes). Check out past polls.