Model Calibration Using Optimization Program

GAMS
1

Hi,

I am modeling a system where that has incomplete or unreliable input
data. Fortunately, the results (trade flows) are well documented. So,
I want to use the observations in the real world to calibrate my input
parameters. I’ve heard that I can use an optimization program that
calls my GAMS model over and over to vary the input parameters until
the results match the observed real world results.

I’ve heard I can write a program in C of Fortran, but I really have no
idea how to go about doing this. Could someone direct me to a page
that might explain this or explain how other programs can call a GAMS
model.

Thanks for the help.

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2

There is a vba macro in excel that calls a gams model.
You could change the data in your xls file and call the gams model
with those vba-macros multiple times.

http://lvps87-230-34-193.dedicated.hosteurope.de/mccarl/mccarlhtml/index.html?examining_the_macros.htm

On 15 Jan., 00:53, michael m wrote:

Hi,

I am modeling a system where that has incomplete or unreliable input
data. Fortunately, the results (trade flows) are well documented. So,
I want to use the observations in the real world to calibrate my input
parameters. I’ve heard that I can use an optimization program that
calls my GAMS model over and over to vary the input parameters until
the results match the observed real world results.

I’ve heard I can write a program in C of Fortran, but I really have no
idea how to go about doing this. Could someone direct me to a page
that might explain this or explain how other programs can call a GAMS
model.

Thanks for the help.

\