中文说明：
已调试好的数据分布的拟合与检验的matlab程序源代码，内容有卡方拟合优度检验、jbtest函数检验、Kolmogorov-Smirnov检验和画频率直方图。
English Description：
The matlab program source code of data distribution fitting and testing has been debugged, including chi square goodness of fit test, jbtest function test, Kolmogorov Smirnov test and drawing frequency histogram