粗糙集理论的matlab实现代码，计算上、下近似集以及核属性和约简结果-Implementation of rough set theory matlab code to calculate the upper and lower approximation sets and the results of the nuclear properties and some simple

,在MATLAB环境下对 学生自主学习成绩决策表进行了求解,分析了该决策表的上近似集、下近似集、不可分辨关系、约简、核集、属性依赖度的概念,从而 在原始数据的基础上得出了条件属性与决策属性间的关系。 -The knowledge theory based on rough set can help to simplify the knowledge proceeded from originaldata. In the paper it intro- duces the roug