Dear Mhrnaz Mohtasham,

I suggest you to see links and attached files on topic.

https://www.udemy.com/powersystemopt/?couponCode=GAMSPSO2019

http://agecon2.tamu.edu/people/faculty/mccarl-bruce/mccspr/newa1.pdf

http://web.uvic.ca/~kooten/Training/Training02.pdf

http://cepac.cheme.cmu.edu/pasi2011/library/maravelias/Tutorial.pdf

Best regards

Mohamed-Mourad Lafifi

Thanks for your reply

unfortunately, I couldn't find my problem because my objective functions are interdependent and must be solved together.

According to your explanation you can use a multi objective optimization model to cover your problem.

Dear Mehrnaz,

Can you please provide more explanation about your problem and the objective function you are dealing with. Even if you're having a multi-objective optimisation problem as Osman Pala suggested, you should be able to define and solve it within GAMS.

So, please provide us with more info.

Best, Majed

Majed Khadem

Dear Dr.Khadem

I found and solved the problem, I really appreciate your response.

yours sincerely, Mehrnaz.

Osman Pala

Thank you for your reply.

Mehrnaz Mohtasham

I am currently facing the same problem as you once did. I do not know how to define and solve objective function with an index. Can you help me out?

Looking forward to hear from you.

Thanks in advance.