R in Action > Introduction to R > Working through an example

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We’ll finish this chapter with an example that ties many of these ideas together. Here’s the task:

1.	Open the general help and look at the “Introduction to R” section.
2.	Install the `vcd` package (a package for visualizing categorical data that we’ll be using in chapter 11).
3.	List the functions and datasets available in this package.
4.	Load the package and read the description of the dataset `Arthritis`.
5.	Print out the `Arthritis` dataset (entering the name of an object will list it).
6.	Run the example that comes with the `Arthritis` dataset. Don’t worry if you don’t understand the results. It basically shows that arthritis patients receiving treatment improved much more than patients receiving a placebo.
7.	Quit.

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Chapter 1. Introduction to R > Working through an example