GAMS World Forum

Hi,

Does anyone know how to retrieve data from a merged gdx file? For example the merged one has the name merged.gdx and it has 2 files a and b ; whereas a has a parameter called SKY, then how should I call it.

-Jubeyer

Hi, Is it possible to model a sequential optimization problem in GAMS. For example, I have one optimization problem, some of its solution needs to be plugged in to another optimization problem as parameters. Can it be done on a single script? If you can refer me to some sample examples that will be ...

In case if this comes to useful for anyone, I have figured out that GAMS bilevel solver JAMS does not support a problem which has both integer variable in leader and follower. It only supports problem where integers are only in leader.

Hi, I am pretty new to GAMS. I am having difficulty in creating a proper .opt file for bilevel program. Currently it has *********** KeepObj MargTol=1e-6 ObjVarName=objvar EMPInfoFile emp.info filename Scalar_MG.gms ************** the above statements but when I execute my code it says that " E...

Hi, I would like to know the answers of the following questions regarding bilevel program syntax since I am not certain after going through the documentation: a. Should I only place the optimizing variables (excluding the optimizing variables of the follower) present in the objective function of the...

Hi, I have declared two similar equations in GAMS over two similar indices. Q_SU_GENLIMITLOW_TRAJECTORY1(MIN_GEN_GEN,INTERVAL)$(ORD(INTERVAL) LE CARD(INTERVAL) - SHUTDOWN_PERIOD(MIN_GEN_GEN) AND (ORD(INTERVAL) GE STARTUP_PERIOD(MIN_GEN_GEN)-INTERVALS_STARTED_AGO(MIN_GEN_GEN))).. GEN_SCHEDULE(MIN_GEN...

Hi,

Is there any way to retrieve the LP file from a GAMS model? If yes, then how can that be done?

Regards,
Jubeyer

Since, calling that from command line results in a error saying "Integer expected for option "limRow" saw "?".

Sorry, I am pretty new in GAMS. Am I supposed to add that limrow=? in the .opt file and see the effect in .lst file or is it something otherwise?

Hi,

I have some equations in my .gms file but after executing it, I don't see them on the .lst files. I guess it means those equations does not get executed at all. What could be the possible reasons for that and how can I make sure that those equations got executed?

Regards,
Jubeyer