就如 David Cox: “There are no routine statistical questions, only questionable statistical routines” 所说, 统计分析应以问题为导向。一般线性回归我们是用来近似估计应变量的均值,当我们的兴趣点不是均值受什么影响,而是应变量的中位数或分位数受什么影响时,采用分位数回归可以估计应变量的中 ...
Emacs for Windows Modified Emacs for Windows Modified is a ready-to-install version of GNU Emacs 23.2 for Windows (released May 8, 2010) with the following additions: ESS 5.11; AUCTeX 11.86; Aspell 0.50.3; English, French, German and Spanish ( new! ) ...
初学者学习 R 语言的文档(教材)阅读顺序可以参考如下: R for Beginners -- Using R -- An Introduction to R 公卫背景的中文书可参考:《应用R软件和Epicalc 程序包分析流行病学数据》 集合资源: http://www.r-project.org/ R 的官方网站 http://cran.r- ...