Design of MATLAB Simulation Tool Box for Rough Set Data Analysis System

The two kernel concepts,indiscernibility relation and relative positive region, are focused on.An algorithm is proposed to analyze the rough set data analysis system,according to the mutual dependency between different kinds of knowledge.The numbers of reduced attributes are compared to pick out a reduction result involving the minimum number of attributes.Taking the advantage of MATLAB in dealing with set functions,the program realizations of many algorithms are given to solve relative core,upper approximation,lower approximation,equivalence relation,relative significance level,relative reduction of attributes,relative reduction of domain and minimal decision rules,thus designing the MATLAB simulation tool.By way of graphical user interface(GUI),the favorable main interface of man-machine interaction system is designed.An example resulting from running is given,which shows the practical significance to the applications of rough set theory.