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Comparing two regression slopes by means of an ANCOVA

One way to learn is to imitate. Monkey see monkey do. After copying some skills, adapt and modify, and hopefully gain mastery.

Link teaches how to compare two regression slopes by ANCOVA

mathbabe

Exploring and venting about quantitative issues

The Stone and the Shell

Using large digital libraries to advance literary history

Hi. I'm Hilary Mason.

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Introduction to Data Science, Columbia University

Blog to document and reflect on Columbia Data Science Class

statMethods blog

A Quick-R Companion

the Tarzan

[R] + applied economics.

4D Pie Charts

Scientific computing, data viz and general geekery, with examples in R and MATLAB.