Re: Using HashBags
Hi,
Don't know if there is a better way, but assuming you don't have control
over the data, you can do this:
my Bag $docents = @rows.map(*.pairup).Bag;
On 2018-04-07 10:10:52 GMT, mimosinnet wrote:
> Hi all,
>
> I do not seem to be able to get this done with the Bag or BagHash
> type:
>
> ---
> dd @rows;
>
>> Output: Array @rows = [["JF", 1], ["JF", 2], ["MM", 2], ["MPu", 2],
>> ["MM", 2], ["FE", 2], ["FV", 2], ["MPu", 2], ["JP", 2], ["JP", 2],
>> ["FV", 2], ["FV", 2], ["JF", 2], ["MM", 2], ["MPu", 2], ["MM", 2],
>> ["FE", 2], ["FV", 2], ["MPu", 2], ["JP", 2], ["JP", 2], ["JF", 4]]
>
> my %docents;
> for @rows -> @row {
> %docents{ @row[0] } += @row[1];
> }
>
> dd %docents;
>
>> Output: Hash %docents = {:FE(4), :FV(8), :JF(9), :JP(8), :MM(8),
>> :MPu(8)}
>
> ---
>
> As I understand it, this would better be achieved with the Bag or
> BagHash type. What would be the easy way?
>
> Thanks!
Re: Using HashBags
Hi,
I'm not sure that I've understood what you need.
If you get that array of arrays from a another process @rows and you wish
to convert it into a Bag you can do this:
my @rows = [["JF", 1], ["JF", 2], ["MM", 2], ["MPu", 2], ["MM", 2], ["FE",
2], ["FV", 2], ["MPu", 2], ["JP", 2], ["JP", 2], ["FV", 2], ["FV", 2],
["JF", 2], ["MM", 2], ["MPu", 2], ["MM", 2], ["FE", 2], ["FV", 2], ["MPu",
2], ["JP", 2], ["JP", 2], ["JF", 4]];
my Bag $docents = bag @rows.map: -> @row {@row[0] xx @row[1]};
dd $docents;
# Bag $docents = ("JP"=>8,"FV"=>8,"FE"=>4,"MPu"=>8,"MM"=>8,"JF"=>9).Bag
Otherwise you can start collecting those pairs into a Bag from the start,
but we would need more details then.
HTH
On Sat, Apr 7, 2018 at 12:10 PM, mimosinnet wrote:
> Hi all,
>
> I do not seem to be able to get this done with the Bag or BagHash type:
>
> ---
> dd @rows;
>
> Output: Array @rows = [["JF", 1], ["JF", 2], ["MM", 2], ["MPu", 2], ["MM",
>> 2], ["FE", 2], ["FV", 2], ["MPu", 2], ["JP", 2], ["JP", 2], ["FV", 2],
>> ["FV", 2], ["JF", 2], ["MM", 2], ["MPu", 2], ["MM", 2], ["FE", 2], ["FV",
>> 2], ["MPu", 2], ["JP", 2], ["JP", 2], ["JF", 4]]
>>
>
> my %docents;
> for @rows -> @row {
> %docents{ @row[0] } += @row[1];
> }
>
> dd %docents;
>
> Output: Hash %docents = {:FE(4), :FV(8), :JF(9), :JP(8), :MM(8), :MPu(8)}
>>
>
> ---
>
> As I understand it, this would better be achieved with the Bag or BagHash
> type. What would be the easy way?
>
> Thanks!
> --
> (≧∇≦) Mimosinnet (Linux User: #463211)
>
--
Fernando Santagata
Using HashBags
Hi all,
I do not seem to be able to get this done with the Bag or BagHash
type:
---
dd @rows;
Output:
Array @rows = [["JF", 1], ["JF", 2], ["MM", 2], ["MPu", 2], ["MM", 2],
["FE", 2], ["FV", 2], ["MPu", 2], ["JP", 2], ["JP", 2], ["FV", 2],
["FV", 2], ["JF", 2], ["MM", 2], ["MPu", 2], ["MM", 2], ["FE", 2],
["FV", 2], ["MPu", 2], ["JP", 2], ["JP", 2], ["JF", 4]]
my %docents;
for @rows -> @row {
%docents{ @row[0] } += @row[1];
}
dd %docents;
Output:
Hash %docents = {:FE(4), :FV(8), :JF(9), :JP(8), :MM(8), :MPu(8)}
---
As I understand it, this would better be achieved with the Bag or
BagHash type. What would be the easy way?
Thanks!
--
(≧∇≦) Mimosinnet (Linux User: #463211)
