R Packages - Helion

ebook

Autor: Hadley Wickham
ISBN: 978-14-919-1054-2
stron: 202, Format: ebook
Data wydania: 2015-03-26
Księgarnia: Helion

Cena książki: 126,65 zł (poprzednio: 147,27 zł)
Oszczędzasz: 14% (-20,62 zł)

Osoby, które kupiły tę książkę, wybierały także »

Turn your R code into packages that others can easily download and use. This practical book shows you how to bundle reusable R functions, sample data, and documentation together by applying author Hadley Wickham’s package development philosophy. In the process, you’ll work with devtools, roxygen, and testthat, a set of R packages that automate common development tasks. Devtools encapsulates best practices that Hadley has learned from years of working with this programming language.

Ideal for developers, data scientists, and programmers with various backgrounds, this book starts you with the basics and shows you how to improve your package writing over time. You’ll learn to focus on what you want your package to do, rather than think about package structure.

Learn about the most useful components of an R package, including vignettes and unit tests
Automate anything you can, taking advantage of the years of development experience embodied in devtools
Get tips on good style, such as organizing functions into files
Streamline your development process with devtools
Learn the best way to submit your package to the Comprehensive R Archive Network (CRAN)
Learn from a well-respected member of the R community who created 30 R packages, including ggplot2, dplyr, and tidyr

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Spis treści

R Packages eBook -- spis treści

Preface
- In This Book
- Conventions Used in This Book
- Using Code Examples
- Safari Books Online
- How to Contact Us
- Acknowledgments
I. Getting Started
1. Introduction
- Philosophy
- Getting Started
- Conventions
- Colophon
2. Package Structure
- Naming Your Package
  - Requirements for a Name
  - Strategies for Creating a Name
- Creating a Package
- RStudio Projects
  - What Is an RStudio Project File?
- What Is a Package?
  - Source Packages
  - Bundled Packages
  - Binary Packages
  - Installed Packages
  - In-Memory Packages
- What Is a Library?
II. Package Components
3. R Code
- R Code Workflow
- Organizing Your Functions
- Code Style
  - Object Names
  - Spacing
  - Curly Braces
  - Line Length
  - Indentation
  - Assignment
  - Commenting Guidelines
- Top-Level Code
  - Loading Code
  - The R Landscape
  - When You Do Need Side Effects
  - S4 Classes, Generics, and Methods
- CRAN Notes
4. Package Metadata
- Dependencies: What Does Your Package Need?
  - Versioning
  - Other Dependencies
- Title and Description: What Does Your Package Do?
- Author: Who Are You?
  - On CRAN
- License: Who Can Use Your Package?
  - On CRAN
- Version
- Other Components
5. Object Documentation
- The Documentation Workflow
- Alternative Documentation Workflow
- Roxygen Comments
- Documenting Functions
- Documenting Datasets
- Documenting Packages
- Documenting Classes, Generics, and Methods
  - S3
  - S4
  - RC
- Special Characters
- Do Repeat Yourself
  - Inheriting Parameters from Other Functions
  - Documenting Multiple Functions in the Same File
- Text Formatting Reference Sheet
  - Character Formatting
  - Links
  - Lists
  - Mathematics
  - Tables
6. Vignettes: Long-Form Documentation
- Vignette Workflow
- Metadata
- Markdown
  - Sections
  - Lists
  - Inline Formatting
  - Tables
  - Code
- Knitr
  - Options
- Development Cycle
- Advice for Writing Vignettes
  - Organization
- CRAN Notes
- Where to Go Next
7. Testing
- Test Workflow
- Test Structure
  - Expectations
- Writing Tests
  - What to Test
  - Skipping a Test
  - Building Your Own Testing Tools
- Test Files
- CRAN Notes
8. Namespace
- Motivation
- Search Path
- The NAMESPACE
- Workflow
- Exports
  - S3
  - S4
  - RC
  - Data
- Imports
  - R Functions
  - S3
  - S4
  - Compiled Functions
9. External Data
- Exported Data
  - Documenting Datasets
- Internal Data
- Raw Data
- Other Data
- CRAN Notes
10. Compiled Code
- C++
  - Workflow
  - Documentation
  - Exporting C++ Code
  - Importing C++ Code
  - Best Practices
- C
  - Getting Started with .Call()
  - Getting Started with .C()
  - Workflow
  - Exporting C Code
  - Importing C Code
  - Best Practices
- Debugging Compiled Code
- Makefiles
- Other Languages
- Licensing
- Development Workflow
- CRAN Issues
11. Installed Files
- Package Citation
- Other Languages
12. Other Components
- Demos
III. Best Practices
13. Git and GitHub
- RStudio, Git, and GitHub
- Initial Setup
- Creating a Local Git Repository
- Seeing Whats Changed
- Recording Changes
- Best Practices for Commits
- Ignoring Files
- Undoing Mistakes
- Synchronizing with GitHub
- Benefits of Using GitHub
- Working with Others
- Issues
- Branches
- Making a Pull Request
- Submitting a Pull Request to Another Repo
- Reviewing and Accepting Pull Requests
- Learning More
14. Automated Checking
- Workflow
- Checks
  - Check Metadata
  - Package Structure
  - Description
  - Namespace
  - R Code
  - Data
  - Documentation
  - Demos
  - Compiled Code
  - Tests
  - Vignettes
- Checking After Every Commit with Travis
  - Basic Config
  - Other Uses
15. Releasing a Package
- Version Number
- Backward Compatibility
- The Submission Process
  - Test Environments
  - Check Results
  - Reverse Dependencies
- CRAN Policies
- Important Files
  - README.md
  - README.Rmd
  - NEWS.md
- Release
  - On Failure
  - Binary Builds
- Prepare for Next Version
- Publicizing Your Package
- Congratulations!
Index