[Chicago-talk] Combine like hash elements

imran javaid imranjj at gmail.com
Mon Nov 23 08:46:41 PST 2015


I am guessing there is a typo in the sample input data. In the third entry,
isn't the key and ID value supposed to be the same? Is it supposed to be 11
or 13? If it is the way it is or if it really is 13, then you need to
arbitrate which key and/or ID the resulting hash will have.

{
'11' => {'AMOUNT' => '20.00','ID' => '11','NAME' => 'Lincoln Park'},
'12' => {'AMOUNT' => '38.00','ID' => '12','NAME' => 'Bucktown'},
'13' => {'AMOUNT' => '41.00','ID' => '12','NAME' => 'Lincoln Park'}
}


On Mon, Nov 23, 2015 at 10:38 AM, Andy Lester <andy at petdance.com> wrote:

> {
>
>> '11' => {'AMOUNT' => '20.00','ID' => '11','NAME' => 'Lincoln Park'},
>> '12' => {'AMOUNT' => '38.00','ID' => '12','NAME' => 'Bucktown'},
>> '13' => {'AMOUNT' => '41.00','ID' => '12','NAME' => 'Lincoln Park'}
>> }
>>
>> Can anyone tell me how I can combine them by 'NAME' so that I would have:
>>
>> {
>> '11' => {'AMOUNT' => '61.00','ID' => '11','NAME' => 'Lincoln Park'},
>> '12' => {'AMOUNT' => '38.00','ID' => '12','NAME' => 'Bucktown'},
>> }
>>
>
> On Nov 23, 2015, at 10:36 AM, richard at rushlogistics.com wrote:
>
> Did not include it because it did not come close but if you must see it
> here it is:
>
>
>  %$w_ref = sort { %$w_ref{$a} <=> %$w_ref{$b} } keys %$w_ref;
>
>
> What that’s doing is sorting.  There’s no combining going on.  You’re
> going to need to write something that goes through your hash values and
> finds the ones that have the same name and add the AMOUNTs together.
>
>
> --
> Andy Lester => www.petdance.com
>
>
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