R Exploratory Data Analysis: Air Pollution Case Study
对 Air Pollution Case Study 的总结。
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R: Saving, Loading and Removing in-memory Data
Saving R Data
What are Confounding Factors and How do they Affect Studies?
confound 的意思是：
What are the differences among different study designs, and what are the relative advantages of each?
摘自 What are the differences among different study designs, and what are the relative advantages of each?。做目录并排版。 1. Two Classic Types of Studies The two ...
An Example of Experimental Design
Question: Does changing the text on your website improve donations?
Types of Data Science Questions
摘自 Six Types Of Analyses Every Data Scientist Should Know 和 Types of Questions；两者内容基本相同。
R console theme
R console 并没有提供 theme 选项，只有自己配 color。在 “X:[R-folder]\etc\Rconsole” 文件中可以指定 color（在 ## Colours for console and pager(s) 小节）（color 的名称在 “X:[R-folder]\etc\rgb.t...
Octave: fmincg and Anonymous Functions
One-vs-all Classfication 的作业里用到了 fmincg，但是语法有点奇怪：