GAMS World Forum

Got it and thanks Michael!

Shih

Thanks Manassaldi for your comments! Shih

Thanks Michael. But I only want to export the file when the solution is optimal. Is there a way of doing it? Thanks. Shih

Hi, I want to write results to an external .csv file, but only in the case where the solution is optimal. These are the commands I used: Solve mymodel min objvar using nlp ; if(mymodel.modelstat eq %modelstat.Optimal% and model.solveStat eq %solveStat.Normal Completion%, execute_unload 'results.gdx'...

I'm currently continuing my work on finding a suitable nonlinear solver as I've discovered that although one of them is effective for certain datasets, it doesn't work for all of them. Thanks Michael for the helpful advice!!!

Dear Experts: I have an extremely nonlinear constraint like following: Ttargetgap(t).. (V25(t)*T25(t)+V35(t)*T35(t)) - Ttarget(t) * (V25(t)+V35(t)) =E= Ttarget_p(t) * (V25(t) + V35(t)) - Ttarget_n(t) * (V25(t) + V35(t)) ; In the constraint, only Ttarget(t) is a given/known parameter. All others are ...

Thanks Fred! It is very helpful!

Hi, I have a similar question about the correct syntax for passing double dash parameter value from command line to the main program. For example, I am executing this command $call gams test_doubledash.gms --month = July I am passing "July" to the main program. In the main program I have: ...