hy,
this is my first attempt to model an electricity auction market with
GAMS.
it’s complete so far, but at the end i’m dealing with the problem that
i want to maximize the profit-function for every single supplier. it
looks like this “profit(supp)” and i got the error message “dimension
different”. the GAMS user guide told me that the objective function
has to be free in sign AND of domains… which i did no know when i
started to write the model.
is there any simple way like a loop to optimize one hundred profit
functions?
or do i have to write the equations, the solve statement and the
output statements a hundres times?
thanks a lot
steven
\
Dear Steven,
a while ago I had a similar case, where I wanted to loop my program a
few times.
The answer from Michael in this post helped me a great deal:
http://groups.google.de/group/gamsworld/browse_thread/thread/209463fb7be1166c/
Also the following answer is also a good alternative method using
loops directly, though I preferred the first one since I can control
the values there.
Kind Regards
Christian
On 15 Sep., 11:29, eve&rave Münster e.V. wrote:
hy,
this is my first attempt to model an electricity auction market with
GAMS.
it’s complete so far, but at the end i’m dealing with the problem that
i want to maximize the profit-function for every single supplier. it
looks like this “profit(supp)” and i got the error message “dimension
different”. the GAMS user guide told me that the objective function
has to be free in sign AND of domains… which i did no know when i
started to write the model.
is there any simple way like a loop to optimize one hundred profit
functions?
or do i have to write the equations, the solve statement and the
output statements a hundres times?
thanks a lot
steven
\