So, for now, I'm solving the model based on the end value of the set being 30. However, I'd like to also solve the model for different final values of the set t, so that I also solve it for the set t /0*29/, /0*28/, /0*27/, all the way to /0*2/.

QUESTION: Is it possible to change this final value of the set without having to do so manually (at the start of my code), but instead doing it so that the model solves it automatically for new end values of the set (for example in a loop or while)?

I'll share the main parts of my code below (I don't think it's necessary, but I could also provide the full code if it makes it clearer).

Code: Select all

```
Sets
t time period /0*30/
t0(t) Period t=0
ts(t) Simulation periods
ts2(t) Simulation periods except t=1
tn(t) Last period
;
t0(t) = yes$(ord(t) eq 1) ;
ts(t) = yes$(ord(t) gt 1) ;
ts2(t) = yes$(ord(t) gt 1 and ord(t) lt card(t)) ;
tn(t) = yes$(ord(t) eq card(t)) ;
Scalars
Parameters
Positive Variables
p(t) Price
d(t) Demand
CumD Cumulative demand
m_in(t) Inflow
m_out(t) Outflow
M(t) Size
C(t) Cancellation
;
Equations
EQ1(t) Inflow
EQ2(t) Outflow
EQ3(t) Cancellation
EQ4(t) Size
EQ5(t) Market balance
EQ6(t) Price over time
EQ7(t) Demand
EQ7SUM Cumulative demand
;
EQ1(t)$(ts(t)).. ;
EQ2(t)$(ts(t)).. ;
EQ3(t)$(ord(t) gt 2).. ;
EQ4(t)$(ts(t)).. ;
EQ5(t)$(ts(t)).. ;
EQ6(t)$(ts2(t)).. ;
EQ7(t)$(ts(t)).. ;
EQ7SUM.. ;
Model MSR_YES /EQ1.m_in, EQ2.m_out, EQ3.C, EQ4.M, EQ5.p, EQ6.B, EQ7.d, EQ7SUM.CumD / ;
Solve MSR_YES using mcp;
```

Code: Select all

```
SumD(t) store the value of CumD for each new loop/solution
loop(t$(ord(t) gt 1),
solve MSR_YES using mcp;
SumD(t) = CumD.l;
);
```