中文说明：粗糙集属性约简，有各种函数，通过调用实现，程序是matlab源代码其详细描述了基于信息熵的算法实现，代码有非常详细的注释。
English Description：
Rough set attribute reduction, has a variety of functions, by calling the implementation program is MATLAB source code and its detailed description of the algorithm based on information entropy, the code had very detailed notes.