I am working on a GAMS MILP model. In my model, I have a variable that takes both positive and negative values. However, my model objective is to minimize the sum of variable that takes only non-negative values. Please guide me on how to do that in GAMS MILP. Thanks in advance.
Variable X (can take both positive and negative values)
Objective… *(To minimize).
Answer =e= Sum(X); *where X has only non-negative values.
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Hi,
You can try this:
Y are variables which can be positive or negative. X are positive variables defined as:
X =g= Y ;
Answer =e= Sum(X) ;
Since the objective is to minimize ‘Answer’, if Y is positive, X will take the value of Y, else if Y is negative, X will take the value of 0.
Cheers,
Dylan
在 2015å¹´5月29日星期五 UTC+8下åˆ10:14:30,CuriousHuman写é“:
I am working on a GAMS MILP model. In my model, I have a variable that takes both positive and negative values. However, my model objective is to minimize the sum of variable that takes only non-negative values. Please guide me on how to do that in GAMS MILP. Thanks in advance.
Variable X (can take both positive and negative values)
Objective… *(To minimize).
Answer =e= Sum(X); *where X has only non-negative values.
–
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