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Python LP.getObjectiveValue方法代码示例

本文整理汇总了Python中pylpsolve.LP.getObjectiveValue方法的典型用法代码示例。如果您正苦于以下问题:Python LP.getObjectiveValue方法的具体用法?Python LP.getObjectiveValue怎么用?Python LP.getObjectiveValue使用的例子?那么恭喜您, 这里精选的方法代码示例或许可以为您提供帮助。您也可以进一步了解该方法所在pylpsolve.LP的用法示例。


在下文中一共展示了LP.getObjectiveValue方法的3个代码示例,这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞,您的评价将有助于系统推荐出更棒的Python代码示例。

示例1: checkLBUBMix

# 需要导入模块: from pylpsolve import LP [as 别名]
# 或者: from pylpsolve.LP import getObjectiveValue [as 别名]
    def checkLBUBMix(self, opts, lb, ub):

        # these are indices to bound
        lbindices = (0,3)

        ubindices = {}
        ubindices["t"] = (3,6)
        ubindices["n"] = "a"
        ubindices["N"] = "a"
        ubindices["l"] = [3,4,5]
        ubindices["a"] = ar([3,4,5],dtype=uint)
        ubindices["f"] = ar([3,4,5],dtype=float64)

        ubvalues = {}
        ubvalues["s"] = ub
        ubvalues["l"] = [ub, ub, ub]
        ubvalues["a"] = ar([ub, ub, ub])

        lbvalues = {}
        lbvalues["s"] = lb
        lbvalues["l"] = [lb, lb, lb]
        lbvalues["a"] = ar([lb, lb, lb])

        lp = LP()

        lp.setLowerBound(lbindices, lbvalues[opts[1]])

        if opts[0] == "N":
            lp.getIndexBlock(ubindices["N"], 3)

        lp.setUpperBound(ubindices[opts[0]], ubvalues[opts[1]])

        lp.setObjective([1,1,1,-1,-1,-1])


        for num_times in range(2):  # make sure it's same anser second time
            lp.solve()

            self.assertAlmostEqual(lp.getObjectiveValue(), lb*3 - ub*3)

            v = lp.getSolution()

            self.assert_(len(v) == 6)
            self.assertAlmostEqual(v[0], lb)
            self.assertAlmostEqual(v[1], lb)
            self.assertAlmostEqual(v[2], lb)

            self.assertAlmostEqual(v[3], ub)
            self.assertAlmostEqual(v[4], ub)
            self.assertAlmostEqual(v[5], ub)
开发者ID:preo,项目名称:pylpsolve,代码行数:52,代码来源:test_bounds.py

示例2: checkUB

# 需要导入模块: from pylpsolve import LP [as 别名]
# 或者: from pylpsolve.LP import getObjectiveValue [as 别名]
    def checkUB(self, opts, ub):

        # these are indices to bound
        indices = {}
        indices["t"] = (0,3)
        indices["N"] = "a"
        indices["l"] = [0,1,2]
        indices["a"] = ar([0,1,2],dtype=uint)
        indices["f"] = ar([0,1,2],dtype=float64)

        ubvalues = {}
        ubvalues["s"] = ub
        ubvalues["l"] = [ub, ub, ub]
        ubvalues["a"] = ar([ub, ub, ub])

        lp = LP()

        if opts[0] == "N":
            lp.getIndexBlock(indices["N"], 3)

        lp.setObjective([1,1,1,1,1,1])
        lp.addConstraint( ((3,6), [[1,0,0],[0,1,0],[0,0,1]]), "<=", 10)
        lp.setMaximize()

        lp.setLowerBound(indices[opts[0]], None)
        lp.setUpperBound(indices[opts[0]], ubvalues[opts[1]])

        for num_times in range(2):  # make sure it's same anser second time
            lp.solve()

            self.assertAlmostEqual(lp.getObjectiveValue(), ub*3 + 10 * 3)

            v = lp.getSolution()

            self.assert_(len(v) == 6)
            self.assertAlmostEqual(v[0], ub)
            self.assertAlmostEqual(v[1], ub)
            self.assertAlmostEqual(v[2], ub)

            self.assertAlmostEqual(v[3], 10)
            self.assertAlmostEqual(v[4], 10)
            self.assertAlmostEqual(v[5], 10)
开发者ID:preo,项目名称:pylpsolve,代码行数:44,代码来源:test_bounds.py

示例3: checkLB

# 需要导入模块: from pylpsolve import LP [as 别名]
# 或者: from pylpsolve.LP import getObjectiveValue [as 别名]
    def checkLB(self, opts, lb):

        # these are indices to bound
        indices = {}
        indices["t"] = (0,3)
        indices["N"] = "a"
        indices["l"] = [0,1,2]
        indices["a"] = ar([0,1,2],dtype=uint)
        indices["f"] = ar([0,1,2],dtype=float64)

        lbvalues = {}
        lbvalues["s"] = lb
        lbvalues["l"] = [lb, lb, lb]
        lbvalues["a"] = ar([lb, lb, lb])

        lp = LP()

        if opts[0] == "N":
            lp.getIndexBlock(indices["N"], 3)

        lp.setObjective([1,1,1,1,1,1])

        lp.setLowerBound(indices[opts[0]], lbvalues[opts[1]])

        for num_times in range(2):  # make sure it's same anser second time
            lp.solve()

            self.assertAlmostEqual(lp.getObjectiveValue(), lb*3)

            v = lp.getSolution()

            self.assert_(len(v) == 6)
            self.assertAlmostEqual(v[0], lb)
            self.assertAlmostEqual(v[1], lb)
            self.assertAlmostEqual(v[2], lb)

            self.assertAlmostEqual(v[3], 0)
            self.assertAlmostEqual(v[4], 0)
            self.assertAlmostEqual(v[5], 0)
开发者ID:preo,项目名称:pylpsolve,代码行数:41,代码来源:test_bounds.py


注:本文中的pylpsolve.LP.getObjectiveValue方法示例由纯净天空整理自Github/MSDocs等开源代码及文档管理平台,相关代码片段筛选自各路编程大神贡献的开源项目,源码版权归原作者所有,传播和使用请参考对应项目的License;未经允许,请勿转载。