add

代码说明：

  几个随机分布序列的MATLAB程序，有加入0，1均匀分布的，有加入－1，0，1对称分布的等等，还有加入高斯分布和Pearson分布(Sequence of several randomly distributed MATLAB procedures, were added to 0,1 uniformly distributed, there to join-1,0,1 symmetric distribution, etc., as well as adding Gaussian distribution and the Pearson distribution)