一点非常基础的时间序列练习，包括练习题和解答，不一定是最优的方法。
A very basic time series exercise, including exercises and solutions, is not necessarily the optimal method. (2021-03-07, R language, 545KB, 下载0次)
采用R语言编程，解决纵向数据线性混效应模型中的参数估计、等问题
R language is used to solve the problems of parameter estimation and so on in the linear mixed effect model of longitudinal data (2020-05-13, R language, 28KB, 下载0次)
多元统计课后习题的编程，都是自己在R Studio中写的，功能是评价一个公司销售员工的销售能力，培养有潜力的好员工。
Programming of multivariate statistical exercises after class (2018-01-14, R language, 208KB, 下载1次)