R For Dummies, 2 by Vries, Andrie de -- Read -- Imperial Library of Trantor

Index

Cover Title Page Table of Contents Introduction

About This Book Changes in the Second Edition Conventions Used in This Book What You’re Not to Read Foolish Assumptions How This Book Is Organized Icons Used in This Book Beyond the Book Where to Go from Here

Part I: Getting Started with R Programming

Chapter 1: Introducing R: The Big Picture

Recognizing the Benefits of Using R Looking At Some of the Unique Features of R

Chapter 2: Exploring R

Working with a Code Editor Starting Your First R Session Sourcing a Script Navigating the Environment

Chapter 3: The Fundamentals of R

Using the Full Power of Functions Keeping Your Code Readable Getting from Base R to More

Part II: Getting Down to Work in R

Chapter 4: Getting Started with Arithmetic

Working with Numbers, Infinity, and Missing Values Organizing Data in Vectors Getting Values in and out of Vectors Working with Logical Vectors Powering Up Your Math

Chapter 5: Getting Started with Reading and Writing

Using Character Vectors for Text Data Manipulating Text Factoring in Factors

Chapter 6: Going on a Date with R

Working with Dates Presenting Dates in Different Formats Adding Time Information to Dates Formatting Dates and Times Performing Operations on Dates and Times

Chapter 7: Working in More Dimensions

Adding a Second Dimension Using the Indices Naming Matrix Rows and Columns Calculating with Matrices Adding More Dimensions Combining Different Types of Values in a Data Frame Manipulating Values in a Data Frame Combining Different Objects in a List

Part III: Coding in R

Chapter 8: Putting the Fun in Functions

Moving from Scripts to Functions Using Arguments the Smart Way Coping with Scoping Dispatching to a Method

Chapter 9: Controlling the Logical Flow

Making Choices with if Statements Doing Something Else with an if. . .else Statement Vectorizing Choices Making Multiple Choices Looping Through Values Looping without Loops: Meeting the Apply Family

Chapter 10: Debugging Your Code

Knowing What to Look For Reading Errors and Warnings Going Bug Hunting Generating Your Own Messages Recognizing the Mistakes You’re Sure to Make

Chapter 11: Getting Help

Finding Information in the R Help Files Searching the Web for Help with R Getting Involved in the R Community Making a Minimal Reproducible Example

Part IV: Making the Data Talk

Chapter 12: Getting Data into and out of R

Getting Data into R Getting Your Data out of R Working with Files and Folders

Chapter 13: Manipulating and Processing Data

Deciding on the Most Appropriate Data Structure Creating Subsets of Your Data Adding Calculated Fields to Data Combining and Merging Data Sets Sorting and Ordering Data Traversing Your Data with the Apply Functions Getting to Know the Formula Interface Whipping Your Data into Shape

Chapter 14: Summarizing Data

Starting with the Right Data Describing Continuous Variables Describing Categories Describing Distributions Describing Multiple Variables Working with Tables

Chapter 15: Testing Differences and Relations

Taking a Closer Look at Distributions Comparing Two Samples Testing Counts and Proportions Working with Models

Part V: Working with Graphics

Chapter 16: Using Base Graphics

Creating Different Types of Plots Controlling Plot Options and Arguments Saving Graphics to Image Files

Chapter 17: Creating Faceted Graphics with Lattice

Creating a Lattice Plot Changing Plot Options Plotting Different Types Plotting Data in Groups Printing and Saving a Lattice Plot

Chapter 18: Looking At ggplot2 Graphics

Installing and Loading ggplot2 Looking At Layers Using Geoms and Stats Sussing Stats Adding Facets, Scales, and Options Getting More Information

Part VI: The Part of Tens

Chapter 19: Ten Things You Can Do in R That You Would’ve Done in Microsoft Excel

Adding Row and Column Totals Formatting Numbers Sorting Data Making Choices with If Calculating Conditional Totals Transposing Columns or Rows Finding Unique or Duplicated Values Working with Lookup Tables Working with Pivot Tables Using the Goal Seek and Solver

Chapter 20: Ten Tips on Working with Packages

Poking Around the Nooks and Crannies of CRAN Finding Interesting Packages Installing Packages Loading Packages Reading the Package Manual and Vignette Updating Packages Forging Ahead with R-Forge Getting packages from github Conducting Installations from BioConductor Reading the R Manual

Appendix A: Installing R and RStudio

Installing and Configuring R Installing and Configuring RStudio

Appendix B: The rfordummies Package

Using rfordummies

About the Authors Cheat Sheet Connect with Dummies End User License Agreement

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