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Hey guys, sorry for the spaming lately, but as I said I'm quite a beginner and thus there are a lot of question, which I can't answer just with the documentary. I'm now using binary variables in my model. But I got a problem with the execution, which I don't understand. This is the important code: i...

Thank you very much for your fast answer!
It was really helpful.

Thanks a lot for your help. I see, that my declaration didn't really make sense. I corrected it. Anyway unfortunately this doesn't solve my problem. Now I get "error 52 Endogenous $-control operations not allowed" as an error, which is basically the same. I found this threat in the archive...

Hi guys, I got another question about logical conditions for equations. As I saw in the documentation it is illegal to use if-else operations for the definition of equations. That's why I wanted to use the $ operator to put logical conditions into account. This is the important code: sets i time ste...

Thank you for your fast reply!
Your explanation helped me a lot.

Hey guys, I'm a beginner, when it comes to GAMS. I have a question about a variable. I'm right now trying to model a model of a thermal energy storage. For this I need to use ordered sets to calculate the temperature with respect to the temperature of the time step before. For this I implemented the...