tailieunhanh - Exploring Everyday Things with R and Ruby

Ruby Why Ruby Installing Ruby Running Ruby Requiring External Libraries Basic Ruby Everything Is an Object Shoes What Is Shoes? A Rainbow of Shoes Installing Shoes Programming Shoes Introducing R Using R The R Console Sourcing Files and the Command Line Packages Programming R Variables and Functions Conditionals and Loops Data Structures Importing Data Charting Basic Graphs | Discover the World Around You Through Programming Exploring Everyday Things with R and Ruby O REILLY8 Sau Sheong Chang Data Topics and Programming Exploring Everyday Things with R and Ruby If you re curious about how things work this fun and intriguing guide will help you find real answers to everyday problems. By using fundamental math and doing simple programming with the Ruby and R languages you ll learn how to model a problem and work toward a solution. All you need is a basic understanding of programming. After a quick introduction to Ruby and R you ll explore a wide range of questions by learning how to assemble process simulate and analyze the available data. You ll learn to see everyday things in a different perspective through simple programs and common sense logic. Once you finish this book you can begin your own journey of exploration and discovery. Here are some of the questions you ll explore Determine how many restroom stalls can accommodate an office with 70 employees Mine your email to understand your particular emailing habits Use simple audio and video recording devices to calculate your heart rate Create an artificial society and analyze its behavioral patterns to learn how specific factors affect our real society A curious hacker s dream Guides you through geeky projects of pure fun while teaming great R and Ruby skills too. This book captures the true hacker spirit more than any I ve seen in years. Derek Sivers founder CD Baby Sau Sheong Chang Director of Applied Research for HP Labs Singapore has been in software development mostly cloud- and data-related systems for more than 17 years. Well known in the local developer communities he is an active speaker at various technology conferences. He has published two books on Ruby prior to this one. US CAN ISBN 978-1-449-31515-3 9 781449315153 . 9 9 llllllllllllllll Twitter @oreillymedia oreilly O REILLY .

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