A Pocket Guide to the Language, API's and Library
Margot Tollefson

#R
#Syntax
#API
#S4
#I/O
#RStudio
This handy reference book detailing the intricacies of R covers version 4.x features, including numerous and significant changes to syntax, strings, reference counting, grid units, and more.
Starting with the basic structure of R, the book takes you on a journey through the terminology used in R and the syntax required to make R work. You will find looking up the correct form for an expression quick and easy. Some of the new material includes information on RStudio, S4 syntax, working with character strings, and an example using the Twitter API.
With a copy of the R 4 Quick Syntax Reference in hand, you will find that you are able to use the multitude of functions available in R and are even able to write your own functions to explore and analyze data.
What You Will Learn
Who This Book Is For
Those with programming experience, either new to R, or those with at least some exposure to R but who are new to the latest version.
Table of Contents
Part I: R Basics
Chapter 1: Downloading R and RStudio and Setting Up a File System
Chapter 2: The R Prompt and the RStudio Main Menus and Subwindows
Chapter 3: Assignments and Operators
Part II: Kinds of Objects
Chapter 4: Types and Modes of Objects
Chapter 5: Classes of Objects
Part III: Functions
Chapter 6: Packaged Functions
Chapter 7: Scripts, User-Created Functions, and S4 and Reference Class Methods
Chapter 8: How to Use a Script or Function
Part IV: I/O and Manipulating Objects
Chapter 9: Importing and Creating Data
Chapter 10: Exporting from R
Chapter 11: Descriptive Functions and Manipulating Objects
Part V: Flow Control
Chapter 12: Flow Control
Chapter 13: Examples of Flow Control
Chapter 14: The ifelse( ) and switch( ) Functions
Part VI: Some Common Functions, Packages, and Techniques
Chapter 16: The base, stats, and graphics Packages
Chapter 17: Tricks of the Trade
Margot Tollefson is a self-employed consulting statistician residing in the tiny town of Stratford in the corn and soybean fields of north-central Iowa. She started using the S-Plus language in the early 1990s and was happy to switch to R about ten years ago. Margot enjoys writing her own functions in R - to do plots and simulations, as well as to implement custom modeling and use published statistical methods. She earned her graduate degrees in statistics from Iowa State University in Ames, Iowa.









