R for Data Science


Book Description

Learn how to use R to turn raw data into insight, knowledge, and understanding. This book introduces you to R, RStudio, and the tidyverse, a collection of R packages designed to work together to make data science fast, fluent, and fun. Suitable for readers with no previous programming experience, R for Data Science is designed to get you doing data science as quickly as possible. Authors Hadley Wickham and Garrett Grolemund guide you through the steps of importing, wrangling, exploring, and modeling your data and communicating the results. You'll get a complete, big-picture understanding of the data science cycle, along with basic tools you need to manage the details. Each section of the book is paired with exercises to help you practice what you've learned along the way. You'll learn how to: Wrangle—transform your datasets into a form convenient for analysis Program—learn powerful R tools for solving data problems with greater clarity and ease Explore—examine your data, generate hypotheses, and quickly test them Model—provide a low-dimensional summary that captures true "signals" in your dataset Communicate—learn R Markdown for integrating prose, code, and results




The Murder of Mr. Wickham


Book Description

A summer house party turns into a thrilling whodunit when Jane Austen's Mr. Wickham—one of literature’s most notorious villains—meets a sudden and suspicious end in this brilliantly imagined mystery from a New York Times bestselling author featuring Austen’s leading literary characters. “Had Jane Austen sat down to write a country house murder mystery, this is exactly the book she would have written.” —Alexander McCall Smith The happily married Mr. Knightley and Emma are throwing a party at their country estate, bringing together distant relatives and new acquaintances—characters beloved by Jane Austen fans. Definitely not invited is Mr. Wickham, whose latest financial scheme has netted him an even broader array of enemies. As tempers flare and secrets are revealed, it’s clear that everyone would be happier if Mr. Wickham got his comeuppance. Yet they’re all shocked when Wickham turns up murdered—except, of course, for the killer hidden in their midst. Nearly everyone at the house party is a suspect, so it falls to the party’s two youngest guests to solve the mystery: Juliet Tilney, the smart and resourceful daughter of Catherine and Henry, eager for adventure beyond Northanger Abbey; and Jonathan Darcy, the Darcys’ eldest son, whose adherence to propriety makes his father seem almost relaxed. In this tantalizing fusion of Austen and Christie, from New York Times bestselling author Claudia Gray, the unlikely pair must put aside their own poor first impressions and uncover the guilty party—before an innocent person is sentenced to hang. A VINTAGE ORIGINAL




ggplot2


Book Description

Provides both rich theory and powerful applications Figures are accompanied by code required to produce them Full color figures




Advanced R


Book Description

An Essential Reference for Intermediate and Advanced R Programmers Advanced R presents useful tools and techniques for attacking many types of R programming problems, helping you avoid mistakes and dead ends. With more than ten years of experience programming in R, the author illustrates the elegance, beauty, and flexibility at the heart of R. The book develops the necessary skills to produce quality code that can be used in a variety of circumstances. You will learn: The fundamentals of R, including standard data types and functions Functional programming as a useful framework for solving wide classes of problems The positives and negatives of metaprogramming How to write fast, memory-efficient code This book not only helps current R users become R programmers but also shows existing programmers what’s special about R. Intermediate R programmers can dive deeper into R and learn new strategies for solving diverse problems while programmers from other languages can learn the details of R and understand why R works the way it does.




Mastering Shiny


Book Description

Master the Shiny web framework—and take your R skills to a whole new level. By letting you move beyond static reports, Shiny helps you create fully interactive web apps for data analyses. Users will be able to jump between datasets, explore different subsets or facets of the data, run models with parameter values of their choosing, customize visualizations, and much more. Hadley Wickham from RStudio shows data scientists, data analysts, statisticians, and scientific researchers with no knowledge of HTML, CSS, or JavaScript how to create rich web apps from R. This in-depth guide provides a learning path that you can follow with confidence, as you go from a Shiny beginner to an expert developer who can write large, complex apps that are maintainable and performant. Get started: Discover how the major pieces of a Shiny app fit together Put Shiny in action: Explore Shiny functionality with a focus on code samples, example apps, and useful techniques Master reactivity: Go deep into the theory and practice of reactive programming and examine reactive graph components Apply best practices: Examine useful techniques for making your Shiny apps work well in production




The Gatecrasher


Book Description

A gold digger woos a widower in a “modern day novel of manners . . . [with] memorable characters . . . as unpredictable and multifaceted as they are stylish” (Publishers Weekly). Madeleine Wickham is Sophie Kinsella, and The Gatecrasher is just as delicious as her internationally bestselling Shopaholic series. Everything’s coming up roses for Fleur Daxeny, as she goes through more rich men than she does designer hats. Beautiful and utterly irresistible, her success at crashing funerals to find wealthy men is remarkable. Fleur wastes no time in seducing her latest conquest, the handsome and rich widower Richard Favour. His children are caught up in a whirlwind as their father’s new girlfriend descends on the family estate. Fleur is not one to wear her heart on her Chanel sleeves, but she soon finds herself embracing Richard and his family. But just as Fleur contemplates jumping off the gold-digger train for good, a long-buried secret from her past threatens to destroy her new family. “Witty and deeply biting. . . . Wickham’s characters move with the studied grace of Jane Austen’s upper class. . . . Readers will be both touched and entertained.” —Library Journal “An observant and engaging storyteller.” —Kirkus Reviews “An enjoyable read.” —Booklist




Medieval Europe


Book Description

A spirited history of the changes that transformed Europe during the 1,000-year span of the Middle Ages: “A dazzling race through a complex millennium.”—Publishers Weekly The millennium between the breakup of the western Roman Empire and the Reformation was a long and hugely transformative period—one not easily chronicled within the scope of a few hundred pages. Yet distinguished historian Chris Wickham has taken up the challenge in this landmark book, and he succeeds in producing the most riveting account of medieval Europe in a generation. Tracking the entire sweep of the Middle Ages across Europe, Wickham focuses on important changes century by century, including such pivotal crises and moments as the fall of the western Roman Empire, Charlemagne’s reforms, the feudal revolution, the challenge of heresy, the destruction of the Byzantine Empire, the rebuilding of late medieval states, and the appalling devastation of the Black Death. He provides illuminating vignettes that underscore how shifting social, economic, and political circumstances affected individual lives and international events—and offers both a new conception of Europe’s medieval period and a provocative revision of exactly how and why the Middle Ages matter. “Far-ranging, fluent, and thoughtful—of considerable interest to students of history writ large, and not just of Europe.”—Kirkus Reviews, (starred review) Includes maps and illustrations




The Inheritance of Rome


Book Description

The idea that with the decline of the Roman Empire Europe entered into some immense ‘dark age’ has long been viewed as inadequate by many historians. How could a world still so profoundly shaped by Rome and which encompassed such remarkable societies as the Byzantine, Carolingian and Ottonian empires, be anything other than central to the development of European history? How could a world of so many peoples, whether expanding, moving or stable, of Goths, Franks, Vandals, Byzantines, Arabs, Anglo-Saxons, Vikings, whose genetic and linguistic inheritors we all are, not lie at the heart of how we understand ourselves? The Inheritance of Rome is a work of remarkable scope and ambition. Drawing on a wealth of new material, it is a book which will transform its many readers’ ideas about the crucible in which Europe would in the end be created. From the collapse of the Roman imperial system to the establishment of the new European dynastic states, perhaps this book’s most striking achievement is to make sense of an immensely long period of time, experienced by many generations of Europeans, and which, while it certainly included catastrophic invasions and turbulence, also contained long periods of continuity and achievement. From Ireland to Constantinople, from the Baltic to the Mediterranean, this is a genuinely Europe-wide history of a new kind, with something surprising or arresting on every page.




R Packages


Book Description

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




Wickham's Diary


Book Description

11 July 1784 Why should I be beneath Fitzwilliam? I am just as handsome as he is; I am just as intelligent, even though he works harder at his books; and I am just as amusing; in fact I dare say I am a great deal more amusing, for Fitzwilliam is so proud he will not take the trouble to entertain other people. Yet although he is no better than me, when he grows up he will inherit Pemberley, and I will inherit nothing... Jane Austen's ultimate bad boy finally gets his say. Face with an uncertain future--while his friend Fitzwilliam Darcy is set for life--dastardly George Wickham plots and cavorts in this rollicking prequel to Pride and Prejudice. Bestselling author Amanda Grange daringly explores the inner turmoil and secret motivations of the character every Austen fan loves to hate... Praise for Mr. Darcy's Diary: "Grange tells Darcy's story in her own style, with charm and a gentle wit. While her characters are true to Austen's creations, a couple of surprises lurk, only adding to the reader's pleasure."--Susan Higginbotham, author of The Traitor's Wife