,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

水蒸汽特性表，可以在matlab中运行计算水蒸汽的参数属性，对于热动专业的学生及其有利。-Characteristics of water vapor form, you can run matlab parameters of water vapor properties calculating, for the Thermal and favorable majors.

遗传算法处理粗糙集分析题中的属性约简。同时能根据实际空气数据生成决策表。-The genetic algorithm of rough set attribute reduction problem in analysis. At the same time, according to the actual air data to generate the decision table.