Search found 3 matches
- 7 months ago
- Forum: Syntax
- Topic: problem in using ord
- Replies: 1
- Views: 7206
problem in using ord
i tried to save i th term of a parameter in a scalar but gams says Uncontrolled set entered as constant. can anybody help me? here is my code sets i /1*3/ j/1*3/; scalar counter /1/ a /0/ b /0/; parameters dinf(i) /1*3 0/ ; a= dinf(i)$(ord(i) = counter); display a
- 7 months ago
- Forum: Modeling
- Topic: define new equation in each loop iteration
- Replies: 3
- Views: 11706
Re: define new equation in each loop iteration
Look at a TSP example (https://www.gams.com/latest/gamslib_ml/libhtml/gamslib_tsp1.html) in the GAMS model library where a sub-tour elimination constraint gets added in every iteration. You will need to overestimate the number of iterations (cc) and use a loop though. Good luck. -Michael This code ...
- 7 months ago
- Forum: Modeling
- Topic: define new equation in each loop iteration
- Replies: 3
- Views: 11706
define new equation in each loop iteration
Hi
I have a model that should add new constrain to last constrains in each loop iteration. also the number of loop iterations is unknown so it's a while loop. how can i handle it in GAMS?
I have a model that should add new constrain to last constrains in each loop iteration. also the number of loop iterations is unknown so it's a while loop. how can i handle it in GAMS?