Design and Algorithms Realization of Rough Set Simulation Tool Box

The basic conception and trait of data analysis system based on rough set(RS) method are briefly described. Two important concepts of indiscernibility relation and relative positive region are mainly focused on. By using the dependant degree of knowledge, the algorithm of RS data analysis system is submitted. By comparing the numbers of reduced attributes, the result of minimal attributes reduction is selected. Program realization of many algorithms of solving relative core, upper (lower) approximation, equivalence relation, relatively significant degree, relatively attributes reduction, relatively value reduction, minimal decision rules is obtained. The MATLAB programs of above fields are given. MATLAB simulation tool box is designed. By imposing graphical user interface GUI method, the favorable man-machine alternation system main interface is devised. GUI programming method is particularly introduced by using a button example.