linear-programming - 决策变量（或表达式）“x”不允许在 cplex 中出错

Question

我正在构建一个 CPLEX OPL 模型。我发现错误：不允许决策变量（或表达式）“x”。

这里 x 是一个决策变量，如下所示：

dvar boolean x[N][CR];
Constraint:
forall(i in N, j in CR :x[i][j]==1) {


(j%2 == 0) => r[i] == 1;




(j%2 == 1) => r[i] == 0; 




}

我如何正确编写此约束。提前致谢

标签： linear-programmingcplexopl

Answer 1

range N=1..2;
range CR=1..3;

dvar boolean x[N][CR];
dvar boolean r[N];
subject to
{
forall(i in N, j in CR ) {


((j%2 == 0) && (x[i][j]==1)) => (r[i] == 1);




((j%2 == 1) && (x[i][j]==1)) => (r[i] == 0); 




}
}

工作正常