Search found 4 matches
- 6 years ago
- Forum: Modeling
- Topic: Modeling abs value
- Replies: 1
- Views: 2846
Re: Modeling abs value
In my opinion, you must change abs part with a dummy decision variables like lambda(i,j) or etc. After defining this non negative decision you must replace abs part of objective with this decision variable. Please do not forget to add below constraints to reflect abs effect to the model: cons(i,j).....
- 6 years ago
- Forum: Modeling
- Topic: Stochastic Optimization Model NonOpt Problem
- Replies: 0
- Views: 2266
Stochastic Optimization Model NonOpt Problem
Dear All,
I have problem with my model. When i solve the model, there is an nonoptimality caused by random variable in the model. How can i correct the problem? My model is at the attachment.
Thanks in advance,
Regards,
I have problem with my model. When i solve the model, there is an nonoptimality caused by random variable in the model. How can i correct the problem? My model is at the attachment.
Thanks in advance,
Regards,
JAMS
Hi,
I can try to solve a SP model with JAMS structure. However GAMS gives this error "JAMS cannot solve SP models". How can I handle this problem? I don't want to solve my model via DE solver.
Thanks in advance,
Nazmi
I can try to solve a SP model with JAMS structure. However GAMS gives this error "JAMS cannot solve SP models". How can I handle this problem? I don't want to solve my model via DE solver.
Thanks in advance,
Nazmi
- 7 years ago
- Forum: Modeling
- Topic: Stochastic Modelling with 2 Random Variables
- Replies: 1
- Views: 3330
Stochastic Modelling with 2 Random Variables
Hello Dear GAMS World Forum Members, I wrote a stochastic programming code with 2 random variables. There is no problem in here and now problem version. However, there is a huge problem in Expected Value (EV) problem. I tried different solutions to solve the issue, but I am not capable of solving. A...