R: Getting and Cleaning Data

August 2, 2014 35 minute read

What are Confounding Factors and How do they Affect Studies?

August 1, 2014 2 minute read

confound 的意思是：

What are the differences among different study designs, and what are the relative advantages of each?

July 31, 2014 11 minute read

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

July 31, 2014 less than 1 minute read

Question: Does changing the text on your website improve donations?

Types of Data Science Questions

July 29, 2014 2 minute read

摘自 Six Types Of Analyses Every Data Scientist Should Know 和 Types of Questions；两者内容基本相同。