一些有关粗糙集的MATLAB源程序，基于等价关系的粒化与近似的数据分析方法-Some rough set of MATLAB source code Data analysis method of granulation and approximation based on equivalence relation

从MATLAB中产生数据，数据分成训练集和测试集，并对数据进行分类训练。(Data is generated from MATLAB, the data is divided into training sets and test sets, and data is classified and trained.)