说明：  MATLAB粗糙集属性约简库（内含实例，原创） 函数M文件： TargetOptFcn.m ------------ 遗传算法的目标函数 PositiveRegion.m --------- 计算正域 LowerApproximation.m ------ 计算下近似 IsSub.m ------------------- 判断集合A是否是集合B的子集 EquivalentClassSet.m ----- 基于R分类的所有等价类的集合，即U/R EleEquivalentSet.m ------- 计算包含某元素的一个分类 DependencyDegree.m -------- 计算依赖度
(MATLAB rough set attribute reduction library (including examples, original) The function M file: TargetOptFcn.m---------------- The objective function of genetic algorithm PositiveRegion.m-------------- Computing positive region LowerApproximation.m---------- Calculation of approximation IsSub.m----------------------- Judgment if set A is a subset of the set B EquivalentClassSet.m---------- A collection of all the equivalence classes based on R classification, U/R EleEquivalentSet.m------------ Calculation contains an assortment of an element DependencyDegree.m------------ Dependence computation)