Solved

cycle do

  • 26 September 2019
  • 5 replies
  • 131 views

Dear all,
I want to create a cycle for-do and I want to have the values of the results for each considered point.
How can I write this in aimms?

For now I wrote this

for e| (epsilon_e(e))>epsilonl and (epsilon_e(e))
CO2_ec:=epsilon_e(e);
solve Min_Total_Costs;
Total_Costs_e(e):=Total_Costs;
endfor;

with e the index of a set epsilon_e, while Total_Costs_e(e) a variable.
I want to know the value of Total_Costs_e for each e. What is missing in the code?
Thanks
Best
GL
icon

Best answer by Chris Kuip 27 September 2019, 07:52

The set that is the range of index e can be declared as follows (where p_NumberOfPoints controls the set size):

code:
  Parameter p_NumberOfPoints {
InitialData: 3;
}
Set s_Events {
SubsetOf: Integers;
Index: e;
Definition: ElementRange(1,p_NumberOfPoints);
}
View original

5 replies

Userlevel 3
* Perhaps a typo: at the end of the first line (starting with for) I would expect the word "do".
* Looking at your code, I expect the following identifiers to be declared as parameters:
  • epsilonl
  • epsilon_e
  • CO2_ec
  • Total_Costs_e
* And I expect Total_Costs to be declared as a variable and this variable is solved in the mathematical program Min_Total_Costs.

Also note that if epsilonl is strictly positive (as its name suggests) then the "and (epsilon_e(e))" part of the condition on the for loop is superfluous.
Dear @Chris Kuip ,
thanks for your response. I tried and it still is not working. How can I define the set for index e and these parameters?
Thanks.
Dear @Chris Kuip
how can define the number of points for the defined range epsilon?
Thanks
Userlevel 3
The set that is the range of index e can be declared as follows (where p_NumberOfPoints controls the set size):
code:
  Parameter p_NumberOfPoints {
InitialData: 3;
}
Set s_Events {
SubsetOf: Integers;
Index: e;
Definition: ElementRange(1,p_NumberOfPoints);
}
dear @Chris Kuip
thanks, it seems that I obtained some results for each considered point.
Many tanks.
Best
GL

Reply


Didn't find what you were looking for? Try searching on our documentation pages:

AIMMS Developer & PRO | AIMMS How-To | AIMMS SC Navigator