LPsolveAPI中的或非约束 [英] Either-Or constraints in LPsolveAPI

问题描述

我目前正在R中的LPsolveAPI中编写MIP.该程序本身很简单，但是我无法找到一种写或非约束的方法，而不能直接调用新的二进制变量或二进制值在lhs上. LPsolveAPI是否不支持此功能，或者我是否缺少明显的功能?

I'm currently writing a MIP in LPsolveAPI in R. The program itself is straightforward, but I can't find a way to write an either-or constraint without being able to directly call a new binary variable or the binary values on the lhs. Does LPsolveAPI not support this or am I missing something obvious?

推荐答案

使用新的二进制变量是在lp_solve中建模或"或约束"的标准方法. ( LpSolveAPI 基于

The use of new binary variables is the standard way to model either-or-constraints in lp_solve. (LpSolveAPI is based on the lp_solve solver.). So you are not missing anything obvious.

也就是说，根据您的限制，可能会帮助您的一件事是使用SOS(特殊顺序集).在lp_Solve中查看对SOS的引用.

That said, one thing that might help you, depending on your constraints is the use of SOS (Special Ordered Sets). Check out the reference to SOS in lp_Solve.

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