Search found 4 matches

by gigibotte
1 year ago
Forum: Syntax
Topic: logical equations & binary variables
Replies: 18
Views: 2895

Re: logical equations & binary variables

Hi, I have one question for you Manassaldi. In my objective function I have this member that is z = [...]-TWC(j)*HS(j). Where HS(j)is a variable. Now, TWC(j) should be a parameter that works like this: TWC(j) = 0 when HS(j) < 1000 and TWC(j) = 3.21 when HS(j) >=1000. Any idea how to implement this i...
by gigibotte
1 year ago
Forum: Syntax
Topic: Objective with if-condition
Replies: 28
Views: 3504

Re: Objective with if-condition

Hi Guys, I run into this thread and i found it useful but it unfortunately it doesn't completely solve my problem. I'm running an optimization problem where I have to minimize my objective function. my objective function is, in a simplified version, the following one: z =e = sum(t, sum(i,production_...
by gigibotte
1 year ago
Forum: Syntax
Topic: If Statement - Uncontrolled Set entered as a costant
Replies: 3
Views: 647

Re: If Statement - Uncontrolled Set entered as a costant

Thanks both Michael and Claudio for both your suggestion and your answers!

I'll try them immediately!

Cheers :D :D
by gigibotte
1 year ago
Forum: Syntax
Topic: If Statement - Uncontrolled Set entered as a costant
Replies: 3
Views: 647

If Statement - Uncontrolled Set entered as a costant

Hi all! I'm currently working on a model that use an excel file, with binary inputs for 8760 hours (1 year.) The file is structured so that in the interested column you have either a 1 or a 0. GAMS is reading correctly the file but the problem occurs later. Practically I need to code this statement ...