GAMS World Forum

Ok, this is useful. Thank you for your help.

Hello, I have defined a set as follows: set li /li4/; Afterwards, all the equations and parameters are defined over the set li. There is a large number of equations and parameters. Initially, I need to run the model using li4 only. Based on the output results, I need to rerun the model while redefin...

Does anyone have any simple example of distributionally robust optimization (DRO) in GAMS software? After searching the web, it seems that no one has implemented a distributionally robust optimization model in any subject in GAMS before!!!

hello I need to record the relative gap in a parameter in order to write it in an excel file. In the lst file, I get the relative gap as 0.0018, for example. Since I run large number of models, I need to record the relative gap for each model in an excel file automatically at the end of running each...

Dear Renger

Thank you for help. This solution doesn't work with gams 24.5.3. It gives me error 140: unknown symbol and points to val.k; however, when I have tried
k.val instead of val.k, it worked. Thank you.

Regards
Wael

Hi I need to implement the following Once I load a scalar value (say value for x) from an excel file, I need to use this value to create a sequence set as follows Set i sequence given by the user /1*x/ This gives me an error, so how can I create a variable set, where the user will provide the length...