matrix error the objective variable has vanished from the model

[Jjana3]

Hi,

I have had a (somewhat) functional program and just by small adjustments (decreasing the amount of inputs) I started getting exit code = 3. The only comment that comes with it is "matrix error the objective variable has vanished from the model". I can't find anything about what it could be caused by. Do you have thoughts on that? Could you share them, please?

I am attaching my code just in case it could help finding out whats wrong. It is a simple DEA model using expected return and cvar. Thanks for any help!

[Fred]

Hi,

Your objective variable theta occurs only once with coefficient pcvar=0. Hence, theta disappears with the current value of pcvar, so GAMS does not know what to optimize. If GAMS would generate this model, the solver could make theta very very negative (model would be unbounded).

I hope this helps!

Fred

[Jjana3]

Thank you! I didn't notice this is happening

[kamal]

Hi
I have this problem in my functional program.
please guide me.
please help me

code.docx

(33.35 KiB) Downloaded 222 times

[kamal]

Hi
I have this problem in my functional program.
Please guide me.
Scincerely kamal

code.docx

(33.35 KiB) Downloaded 224 times

code.docx

(33.35 KiB) Downloaded 224 times

[dirkse]

Kamal,

You'll probably get a better response if you start a new thread instead of using an unrelated thread from a year ago.

-Steve

[kamal]

Hi
How can I post?
Please guide me
Sincerely kamal

[kamal]

Hi
How can I post?
Please guide me
Sincerely kamal

[Renger]

There is a button "new topic" in every board ("syntax", "solvers", etc.) .
Cheers
Renger