Margot Tollefson - R 4 Quick Syntax Reference: A Pocket Guide to the Language, APIs and Library

This Apress imprint is published by the registered company APress Media, LLC part of Springer Nature.

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In this third edition of R Quick Syntax Reference, there is more of an emphasis on RStudio and the conveniences that RStudio provides. The book continues to cover how to download and update R and RStudio, how to work with both programs, the types (and modes) and classes of R objects and expressions, using the S4 object system (at the introductory level), working with and creating scripts and functions, and importing from and exporting to external files. Also, working with objects that have dimensions, working with character objects, controlling the flow of a function or group of expressions, running some useful functions (in more and less detail), and working with some trickier parts of R.

This edition focuses on object and expression types rather than modes. The coverage of the S4 object system remains the same as in the second edition, but the Reference Class object system now has a couple of sections. In Chapter , has been expanded to cover most of the importing and exporting functions that are in the default packages loaded by R.

In Chapter , the last example has been substantially changed (but still codes the same process). The other examples in the chapter remain the same, although some argument names have been changed.

A few more functions are presented in Chapters , the functions are organized by subject matter more than in the first two editions.

Chapter .

My purpose in writing and revising this book has been to provide a useful reference for using the versatile R language. I feel the book achieves the purpose of the book. I hope the reader does too.

All source code associated with this book can be accessed at http://github.com/apress/r4-quick-syntax-reference .

First, I would like to acknowledge the R Core Team at the R Foundation for Statistical Computing, Vienna, Austria. The team provides for the help pages in R, without which this book would not have been possible. The technical editor, Matt Wiley, gave many good suggestions and corrections, for which I would like to thank him. I would also like to acknowledge the editors, Mark Powers, Nirmal Selvaraj, and Steve Anglin, at Apress for their help. And, per usual, I would like to thank my husband, Clay Conard, for his patience as I spent days writing and for his support.