Hello,
If this is a constraint (for proc optmodel) I need:
Constraint Example:Sum{<v,'123','ABC'> in v_l_m}X[v]*M[v,'123','ABC'];
.. but the subscript '123' does not exist for all M[v,l,m]'s. (It's not missing, the entry itself has been left out.)
How can I avoid the 'invalid array subscript error'?
Thanks&kind regards
You could intersect with the index set of M (suppose it is called MSET):
Constraint Example: sum{<v,'123','ABC'> in v_l_m inter MSET}X[v]*M[v,'123','ABC'];
You could intersect with the index set of M (suppose it is called MSET):
Constraint Example: sum{<v,'123','ABC'> in v_l_m inter MSET}X[v]*M[v,'123','ABC'];
Thanks, your answer is of course right. But I think I will have a follow-up question. (The "helpful answer option is gone, I believe.)
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