R Graphs Cookbook

www.it-ebooks.info R Graphs Cookbook Detailed hands-on recipes for creating the most useful types of graphs in R—starting from the simplest versions to more advanced applications Hrishi V. Mittal BIRMINGHAM - MUMBAI www.it-ebooks.info R Graphs Cookbook Copyright © 2011 Packt Publishing All rights reserved. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, without the prior written permission of the publisher, except in the case of brief quotations embedded in critical articles or reviews. Every effort has been made in the preparation of this book to ensure the accuracy of the information presented. However, the information contained in this book is sold without warranty, either express or implied. Neither the author, nor Packt Publishing, and its dealers and distributors will be held liable for any damages caused or alleged to be caused directly or indirectly by this book. Packt Publishing has endeavored to provide trademark information about all of the companies and products mentioned in this book by the appropriate use of capitals. However, Packt Publishing cannot guarantee the accuracy of this information. First published: January 2011 Production Reference: 1110111 Published by Packt Publishing Ltd. 32 Lincoln Road Olton Birmingham, B27 6PA, UK. ISBN 978-1-849513-06-7 www.packtpub.com Cover Image by Charwak (charwak86@gmail.com) www.it-ebooks.info Credits Author Hrishi V. Mittal Reviewers Patrick Burns Paul Butler Markus Loecher Paolo Sonego Acquisition Editor Eleanor Duffy Development Editor Maitreya Bhakal Technical Editor Vanjeet D`souza Copy Editor Neha Shetty Editorial Team Leader Akshara Aware Project Team Leader Priya Mukherji Project Coordinator Jovita Pinto Proofreader Joanna McMahon Indexer Tejal Daruwale Production Coordinator Melwyn D`sa Aparna Bhagat Cover Work Melwyn D`sa www.it-ebooks.info About the Author Hrishi V. Mittal has been working with R for a few years in different capacities. He was introduced to the exciting world of data analysis with R when he was working as a Senior Air Quality Scientist at King`s College London, where he used R extensively to analyze large amounts of air pollution and traffic data to inform the Mayor of London`s Air Quality Strategy. He has experience in various other programming languages, but prefers R for data analysis and visualization. He is actively involved in various R mailing lists, forums and the development of some R packages. In early 2010, Hrishi started Pretty Graph Limited (www.prettygraph.com), a software company specializing in web-based data visualization products. The company`s flagship product, Pretty Graph, uses R as the backend engine for helping researchers and businesses visualize and analyze data. The goal is to bring the power of R to a wider audience by providing a modern graphical user interface which can be accessed by anyone and from anywhere simply by using a web browser. First and foremost, I am grateful to the creators of R, Ross Ihaka and Robert Gentleman, and the countless other contributors who have made one of the greatest open source software of all time. I would like to thank my wife Louise for her patience and support throughout the writing of the book. Her feedback on the writing itself has also been very useful. Special thanks are also due to Clive and Jimmy, who have consistently provided silent, warm and furry stress relief. I`m grateful to my parents and sister for their love and the pride they always take in my work, even when they are not quite sure what I`m doing. It`s been nice to have support from my friends Madhavi Bhargava, Rohit Menon and Aniruddha Kembavi, who have been very encouraging and at times more excited than me about the book. I`d also like to thank the reviewers for pointing out some errors and suggesting valuable improvements. Last, but not least, I`d like to thank my editor Eleanor Duffy and the rest of the team at Packt, who have been very professional, understanding and helpful throughout the project. www.it-ebooks.info ... - tailieumienphi.vn