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R Packages

Buy
R Packages, 9781491910597 (1491910593), O'Reilly, 2015

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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Python Web Scraping: Hands-on data scraping and crawling using PyQT, Selnium, HTML and Python, 2nd Edition
Python Web Scraping: Hands-on data scraping and crawling using PyQT, Selnium, HTML and Python, 2nd Edition

Successfully scrape data from any website with the power of Python 3.x

Key Features

  • A hands-on guide to web scraping using Python with solutions to real-world problems
  • Create a number of different web scrapers in Python to extract information
  • This book...
Scientific Computing with Python 3
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Key Features

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  • Explore numerical computing and mathematical libraries using Python 3.x code with SciPy and NumPy modules
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Office 2016 All-In-One For Dummies
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The fast and easy way to get things done with Office

Perplexed by PowerPoint? Looking to excel at Excel? From Access to Word—and every application in between—this all-encompassing guide provides plain-English guidance on mastering the entire Microsoft Office suite. Through easy-to-follow instruction, you'll...


Wicked Cool Shell Scripts, 2nd Edition: 101 Scripts for Linux, OS X, and UNIX Systems
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Shell scripts are an efficient way to interact with your machine and manage your files and system operations. With just a few lines of code, your computer will do exactly what you want it to do. But you can also use shell scripts for many other essential (and not-so-essential) tasks.

This second edition of Wicked Cool
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About This Book

  • Install your first operating system, share files over the network, and run programs remotely
  • Construct robots and interface with your own circuits and purpose built add-ons, as well as adapt off-the-shelf household devices using this pragmatic guide
  • Packed with clear,...
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Android Programming for Beginners

Learn all the Java and Android skills you need to start making powerful mobile applications

About This Book

  • Kick-start your Android programming career, or just have fun publishing apps to the Google Play marketplace
  • A first-principles introduction to Java, via Android, which means...
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