book

R For Dummies

Name: R For Dummies
ISBN: 9781119963134

by Joris Meys, Andrie de Vries

July 2012

Beginner

408 pages

9h 17m

English

For Dummies

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Cover
Table of Contents
Title Page
Introduction
Part I: R You Ready?
Chapter 1: Introducing R: The Big Picture
Recognizing the Benefits of Using RLooking At Some of the Unique Features of R
Chapter 2: Exploring R
Working with a Code EditorStarting Your First R SessionSourcing a ScriptNavigating the Workspace
Chapter 3: The Fundamentals of R
Using the Full Power of FunctionsKeeping Your Code ReadableGetting 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 ValuesOrganizing Data in VectorsGetting Values in and out of VectorsWorking with Logical VectorsPowering Up Your Math with Vector Functions

Chapter 5: Getting Started with Reading and Writing
Using Character Vectors for Text DataManipulating TextFactoring in Factors
Chapter 6: Going on a Date with R
Working with DatesPresenting Dates in Different FormatsAdding Time Information to DatesFormatting Dates and TimesPerforming Operations on Dates and Times
Chapter 7: Working in More Dimensions
Adding a Second DimensionUsing the IndicesNaming Matrix Rows and ColumnsCalculating with MatricesAdding More DimensionsCombining Different Types of Values in a Data FrameManipulating Values in a Data FrameCombining Different Objects in a List
Part III: Coding in R
Chapter 8: Putting the Fun in Functions
Moving from Scripts to FunctionsUsing Arguments the Smart WayCoping with ScopingDispatching to a Method
Chapter 9: Controlling the Logical Flow
Making Choices with if StatementsDoing Something Else with an if...else StatementVectorizing ChoicesMaking Multiple ChoicesLooping Through ValuesLooping without Loops: Meeting the Apply Family
Chapter 10: Debugging Your Code
Knowing What to Look ForReading Errors and WarningsGoing Bug HuntingGenerating Your Own MessagesRecognizing the Mistakes You’re Sure to Make
Chapter 11: Getting Help
Finding Information in the R Help FilesSearching the Web for Help with RGetting Involved in the R CommunityMaking a Minimal Reproducible Example
Part IV: Making the Data Talk
Chapter 12: Getting Data into and out of R
Getting Data into RGetting Your Data out of RWorking with Files and Folders
Chapter 13: Manipulating and Processing Data
Deciding on the Most Appropriate Data StructureCreating Subsets of Your DataAdding Calculated Fields to DataCombining and Merging Data SetsSorting and Ordering DataTraversing Your Data with the Apply FunctionsGetting to Know the Formula InterfaceWhipping Your Data into Shape
Chapter 14: Summarizing Data
Starting with the Right DataDescribing Continuous VariablesDescribing CategoriesDescribing DistributionsDescribing Multiple VariablesWorking with Tables
Chapter 15: Testing Differences and Relations
Taking a Closer Look at DistributionsComparing Two SamplesTesting Counts and ProportionsWorking with Models
Part V: Working with Graphics
Chapter 16: Using Base Graphics
Creating Different Types of PlotsControlling Plot Options and ArgumentsSaving Graphics to Image Files
Chapter 17: Creating Faceted Graphics with Lattice
Creating a Lattice PlotChanging Plot OptionsPlotting Different TypesPlotting Data in GroupsPrinting and Saving a Lattice Plot
Chapter 18: Looking At ggplot2 Graphics
Installing and Loading ggplot2Looking At LayersUsing Geoms and StatsSussing StatsAdding Facets, Scales, and OptionsGetting 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 TotalsFormatting NumbersSorting DataMaking Choices with IfCalculating Conditional TotalsTransposing Columns or RowsFinding Unique or Duplicated ValuesWorking with Lookup TablesWorking with Pivot TablesUsing the Goal Seek and Solver
Chapter 20: Ten Tips on Working with Packages
Poking Around the Nooks and Crannies of CRANFinding Interesting PackagesInstalling PackagesLoading PackagesReading the Package Manual and VignetteUpdating PackagesUnloading PackagesForging Ahead with R-ForgeConducting Installations from BioConductorReading the R Manual
Appendix: Installing R and RStudio
Installing and Configuring RInstalling and Configuring RStudio
Cheat Sheet

Content preview from R For Dummies

Part I

R You Ready?

9781119963134-pp0101.eps

In this part . . .

From financial headquarters to the dark cellars of small universities, people use R for data manipulation and statistical analysis. With R, you can extract stock prices and predict profits, discover beginning diseases in small blood samples, analyze the behavior of customers, or describe how the gray wolf recolonized European forests.

In this part, you discover the power hidden behind the 18th letter of the alphabet.

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R For Dummies

by Joris Meys, Andrie de Vries

Become an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
and much more.