GAMS World Forum

Hi
Just use a loop

loop(s,

solve mymodel using nlp maximizing OBJ;

results("OBJ",s) = OBJ.L;

);

display results;

Cheers
Renger

Show your objektive function...

Hi Urise This is not correct for several reasons and it is not clear to me what you want to achieve. Even if you would model it like this: set m /1*4/, n(m) /1*3/; notequalm(m,n) .. ord(m) - ord(n) =g= 1; nothing happens in the rest of your model. If you would have another equation eq1(m).. a(m) + b...

Hi Kenhoe

GAMS points you to the place where the error appears and you should only check the first error because the other errors are usually caused by the first error.

It is not K (emissions(K)), but

equations
emissions(k);

emissions(k)..
....

Cheers
Renger

Hi In your equation you have: EMISSION(J,K)$(ord(K) GT 1).. sum(J,f(J,K))=l=PDATA(K,'N'); Note, however, that your equation is defined over J and K and then you try to use J again for summing. THis won't work (how will GAMS keep track of which j to use for the equation itself and the sum?). The equa...

Hi Gams points you to the line 326: tx_o(i) = tax("tx_o",i)/(o0(i)) ; It therefore looks like you have a o0(i) that is for one or more i zero. I added the following code to find the zero values o0(i) = o0(i) + EPS; display i, o0; (I added EPS, as GAMS doesn't report 0. EPS is a very small value). An...

Hi
You should be more specific (at least post an example of a model), so people can help you.
Cheers
Renger

Hi Max

If you want to fix the starting point, you just write If you want to give it a starting point for the solver (GAMS assumes 0 if you don't do that):
Cheers
Renger

Hi You can add files: see below the window where you write your question. There is an "Attachment"-Tab. Furthermore, if you do post code, put it between code tags (the </> symbol will insert those tags on top of the writing window), so the format is saved. Cheers Renger PS. The administrator is usua...

Hi
Please read the rules for this forum (app.php/rules).
If someone would be able to give the correct answer to this question, he is probably clairvoyant.
Cheers
Renger