[...]... P2P forums at p2p.wrox.com The forums are a web-based system for you to post messages relating to Wrox books and related technologies and interact with other readers and technology users The forums offer a subscription feature to e-mail you topics of interest of your choosing when new posts are made to the forums Wrox authors, editors, other industry experts, and your fellow readers are present on these... books eRRata We make every effort to ensure that there are no errors in the text or in the code However, no one is perfect, and mistakes do occur If you find an error in one of our books, like a spelling mistake or faulty piece of code, we would be very grateful for your feedback By sending in errata you may save another reader hours of frustration and at the same time you will be helping us provide... require some of additional steps to make R work properly For Vista or later you need to alter the properties of the R program so that it runs with Administrator privileges To do so, follow these steps: 1 2 3 4 Click the Windows button (this used to be labeled Start) Select Programs Choose the R folder Right-click the R program icon to see an options menu (see Figure 1-6) Figure 1-6 5 Select Properties... Installing R from CRAN The Comprehensive R Archive Network (CRAN) is a network of websites that host the R program and that mirror the original R website The benefit of having this network of websites is improved download speeds For all intents and purposes, CRAN is the R website and holds downloads (including old versions of software) and documentation (e.g manuals, FAQs) When you perform searches for R- related... is first and foremost a programming language Many routines have been written for R by people all over the world and made freely available from the R project website as “packages.” However, the basic installation (for Linux, Windows or Mac) contains a powerful set of tools for most purposes Because R is a computer language, it functions slightly differently from most of the programs that users are familiar... leaRn in thiS chapteR: ➤➤ Discovering what R is ➤➤ How to get the R program ➤➤ How to install R on your computer ➤➤ How to start running the R program ➤➤ How to use the help system and find help from other sources ➤➤ How to get additional libraries of commands R is more than just a program that does statistics It is a sophisticated computer language and environment for statistical computing and graphics... R is available from the R- Project for Statistical Computing website (www .r- project.org), and following is some of its introductory material: R is an open-source (GPL) statistical environment modeled after S and S-Plus The S language was developed in the late 1980s at AT&T labs The R project was started by Robert Gentleman and Ross Ihaka (hence the name, R) of the Statistics Department of the University... widespread audience It is currently maintained by the R core-development team, a hard-working, international team of volunteer developers The R project webpage is the main site for information on R At this site are directions for obtaining the software, accompanying packages, and other sources of documentation 2 ❘ chapteR 1 IntroducIng r: What It Is and hoW to get It R is a powerful statistical program... R (for example, how to dissect results) The later parts of the chapter deal with graphical aspects of regression, such as how to add lines of best fit and confidence intervals xxiii introduction Chapter 11: More About Graphs—This chapter builds on the earlier chapter on graphics (Chapter 7) and also from the previous chapter on regression It shows you how to produce more customized graphs from your... your needs This book covers most recent versions of R The R program does change from time to time as new versions are released However, most of the commands you will need to know have not changed, and even older (in computer terms) versions will work quite happily How This Book Is Structured The book has a general progressive character, and later chapters tend to build on skills you learned earlier Therefore . Answers to Exercises 433 INDEX 461 BEGINNING R THE STATISTICAL PROGRAMMING LANGUAGE BEGINNING R THE STATISTICAL PROGRAMMING LANGUAGE Mark Gardener Beginning R: The Statistical Programming Language Published. For more information about Wiley products, visit www.wiley.com. Library of Congress Control Number: 2012937909 Trademarks: Wiley, the Wiley logo, Wrox, the Wrox logo, Programmer to Programmer,. or the publisher endorses the information the organization or Web site may provide or recommendations it may make. Further, readers should be aware that Internet Web sites listed in this work