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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
After sacrificing himself to save the world, this epic conclusion of Hellboy's story follows him on a journey through Hell, where he once again faces off against the Vampire of Prague, pleads his case when accused of murder, and fulfills his destiny by destroying Pandemonium itself. This deluxe, oversized hardcover edition collects Hellboy in Hell: The Descent and The Death Card, plus an expanded sketchbook section. Mignola's complete Hellboy in Hell saga! ""The prophecies are coming to pass, the threads all coming together. It's a thing of true beauty, really. When it comes down to it, Mike Mignola creating, writing, and drawing the character feels like one of the most important things to ever happen to the medium . . . Epic, perfectly paced, and profoundly dark. Hellboy is comics. It's what the medium is all about."--Nerdist "Hellboy in Hell may be Mike Mignola's masterpiece . . . Mignola's sparse illustration is given deep, complex mood thanks to Stewart's transfixing color palettes. Grab the first volume, sit down with both of these monsters, and sink into the storytelling."--The Creator's Project
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.
We're expecting again! Announcing the COMPLETELY REVISED AND UPDATED FOURTH EDITION of this bestselling pregnancy book. This is a cover-to-cover, chapter-by-chapter, line-by-line revision and update. It's a new book for a new generation of expectant mums, featuring a fresh perspective and a friendlier-than-ever voice. Heidi Murkoff has rewritten every section of the book, answering dozens of new questions and including loads of new asked-for material, such as a detailed week-by-week foetal development section in each of the monthly chapters, an expanded chapter on pre-conception, and a brand new one on carrying multiples. The Fourth Edition incorporates the most recent developments in obstet...
FULLY REVISED AND UPDATED 6TH EDITION OF THE WORLD'S BESTSELLING PREGNANCY GUIDE. 'My best friend during my pregnancy' Mariella Frostrup With 18.5 million copies in print, What to Expect When You’re Expecting is read by 93 per cent of women who read a pregnancy book and was named one of the ‘Most Influential Books of the Last 25 Years’ by USA Today. This cover-to-cover new edition is filled with must-have information, advice, insight, and tips for a new generation of parents. With Heidi Murkoff's trademark warmth, empathy, and humour, What to Expect When You're Expecting answers every conceivable question expectant parents could have, including dozens of new ones based on the ever-chan...
“Explor[es] the underlying history and psychology of public discourse . . . should be required reading for politicians and public advocates.” —Real Change The most pressing problem we face today is not climate change. It is pollution in the public square, where a toxic smog of adversarial rhetoric, propaganda, and polarization stifles discussion and debate, creating resistance to change and thwarting our ability to solve our collective problems. In this second edition of I’m Right and You’re an Idiot, James Hoggan grapples with this critical issue, through interviews with outstanding thinkers and drawing on wisdom from highly regarded public figures. Featuring a new, radically revi...