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You are right, thanks a lot Manassaldi

Thanks a lot Renger :) , but the error continues: "Uncontrolled set entered as constant" I had change: alias(j,jj); eq_margen_1(j) .. (sum(p,is(j,p))+ sum(i,(th(j,i)*Y(i,j))) - sum(k,dm(j,k))) =G= (sum(jj,(sum(p,is(jj,p))+ sum(i,(th(jj,i)*Y(i,jj))) - sum(k,dm(jj,k)))))*V_NEG*(dm(jj,k)/(sum...

Hello,

I have this error of CPLEX:
CPLEX error 1217 : No solution exists.
Problem is integer infeasible

I ´ve tried to find about it but I didn´t get it. I am using MIP to solve and I don´t understad why is not feasible for MIP.

Thanks a lot.

Hi! I want to write this expression but I know that is no possible because I sum j and for all j. I think It would have 2 indexes like j ,j´ but I don’t know how to do it gams. Please, Can you help me with this? I find something with alias but I dont know how to use. GAMS: alias(j,jb) eq(j) .. (sum(...

Thanks a lot Renger !
Sorry for this

Hello,

Could you help me with this?

For this sentence:
eq_dias15 .. Y(i,j) =G= (15 - 15*(1-X(i,j)));

I have the error 149.

I want to do this equation:
Y_ji≥15-15⋅(1-X_(ij ) ) ∀ⅈ,j

Thanks