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Re: [Help-glpk] Assign a param to a set in data section
From: |
Andrew Makhorin |
Subject: |
Re: [Help-glpk] Assign a param to a set in data section |
Date: |
Thu, 30 Nov 2006 02:51:37 +0300 |
> Is it possible to assign a param to a set in the data section?
> By "assign" I mean, deduce the set from the elements whose values are given
> in the param.
> For instance:
>
> Set A;
> set B within A cross A;
> param P{B};
>
> data;
>
> set A:=a1 a2 a3;
>
> param P:= a1 a2 a3 :=
> a1 1 2 .
> a2 . 3 .
> a3 5 . .
> ;
>
> so the question is, is it possible to do something like:
> set B:=P;
> ? (This would define B where there are values in P only.)
See the example maxlow.mod included in the distribution. In the data
section of that example a set (of arcs) is specified along with a
parameter (arc capacities) defined over this set. Probably this is what
you need.