Il giorno mercoledì 6 febbraio 2019 14:29:07 UTC+1, Pierpaolo Tofani ha
scritto:
>
> Hi
> I am trying a functional solution for a recurrent problem.
> I must balance 2 vectors :
>
> I must pass from A1 to A2 with following priority: assign aval qty first
> for records with the same :cat , then to needs in early :day.
> Thanking in advance for any kind of help.
> PS
> :day in format AAAMMDD
>
> (def A1
> {:avail [
> {:day 20190101 :qty 10 :mkey "AAABB" :cat "CO1"}
> {:day 20190101 :qty 20 :mkey "OS100" :cat "CO1"}
> {:day 20190102 :qty 50 :mkey "OS200" :cat " "}
> {:day 20190103 :qty 50 :mkey "OS300" :cat " "}
> {:day 20190104 :qty 40 :mkey "OS400" :cat " "}
> ]
> :needs [
> {:day 20190107 :qty -100 :mkey "OS200" :cat " "}
> {:day 20190108 :qty -50 :mkey "OS300" :cat " "}
> {:day 20190109 :qty -100 :mkey "OS400" :cat " "}
> {:day 20190217 :qty -100 :mkey "OS100" :cat "CO1"}
> ]
> }
> )
>
> after
>
> (def A2
> {:avail [
> {:day 20190101 :qty 0 :mkey "AAABB" :cat "CO1"}
> {:day 20190101 :qty 0 :mkey "OS100" :cat "CO1"}
> {:day 20190102 :qty 0 :mkey "OS200" :cat " "}
> {:day 20190103 :qty 0 :mkey "OS300" :cat " "}
> {:day 20190104 :qty 0 :mkey "OS400" :cat " "}
> ]
> :needs [
> {:day 20190107 :qty 0 :mkey "OS200" :cat " "}
> {:day 20190108 :qty -10 :mkey "OS300" :cat " "}
> {:day 20190109 :qty -100 :mkey "OS400" :cat " "}
> {:day 20190217 :qty -70 :mkey "OS100" :cat "CO1"}
> ]
> }
> )
> The question was answered on
>
https://stackoverflow.com/questions/54556709/functional-way-for-balancing-two-vectors-in-clojure
Thanks
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