Example 8.33: Merging data sets one-to-many

April 5, 2011 | 0 Comments

It's often necessary to combine data from two data sets for further analysis. Such merging can be one-to-one, many-to-one, and many-to-many. The most common form is the one-to-one match, which we cover in section 1.5.7. Today we look at a one-to-man...
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Programming with R – Processing Football League Data Part I

November 23, 2010 | 0 Comments

In this post we will make use of football results data from the website to demonstrate creating functions in R to automate a series of standard operations that would be required for results data from various leagues and divisions. The first step is to consider what control ... [Read more...]

How to Import MS Excel Data into R

September 26, 2009 | 0 Comments

s Sir Francis Bacon said, “Histories make men wise; poets witty; the mathematics subtile; natural philosophy deep; moral grave; logic and rhetoric able to contend.” And Windows stupid. He should have added the last sentence if he were a Windows user in this age. 1. Avoid Using M$ Excel A lot ...
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