方差比检验代码，可以用来进行有效市场假说的检验，另外是一部分-Variance ratio test code can be used for the test of the efficient market hypothesis, the other is part of the

第5章 参数估计与假设检验（此程序是用matlab编写的，此代码已经通过本人测试）-Chapter 5 Parameter estimation and hypothesis testing (this procedure is used matlab, this code has passed my test)

分布函数的假设检验，K-S检验，计算K-S检验临界值Dn,a-Hypothesis testing, distribution function of K-S test, K-S test and Dn calculation of the critical value, a