Hi! IÂ´m doing a MINLP model to minimize water punmping systems, and i

use 2 loopÂ´s in it.

The problem comes when i try tu use GDX utilities to write the several

solutions to a xls file,

because it only write the last solution.

Can someone help?

ThankÂ´s

\

If you are only getting one solution, it is most likely due to the

placement of your statement in (or outside) of your loops. Perhaps

post a copy of your code, then we might solve it together.

I had a similar problem once, and it turned out that it wasn’t so much

the loop that was causing the problem, but rather that I was always

overwriting my data, which meant I was always stuck with the last

solution. In this case I advise to include a counter in your loop, and

generate new sheets each time, ensuring that your solutions are on

different worksheets (or you can do it with workfiles too).

Regards

Chris

On 1 Feb., 13:26, nieBidon wrote:

Hi! IÂ´m doing a MINLP model to minimize water punmping systems, and i

use 2 loopÂ´s in it.

The problem comes when i try tu use GDX utilities to write the several

solutions to a xls file,

because it only write the last solution.

Can someone help?

ThankÂ´s

\