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Data Analysis with R
Load, wrangle, and analyze your data using the world's
most powerful statistical programming language
Tony Fischetti
BIRMINGHAM - MUMBAI
Data Analysis with R
Copyright © 2015 Packt Publishing
All rights reserved. No part of this book may be reproduced, stored in a retrieval
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critical articles or reviews.
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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
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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: December 2015
Production reference: 1171215
Published by Packt Publishing Ltd.
Livery Place
35 Livery Street
Birmingham B3 2PB, UK.
ISBN 978-1-78528-814-2
www.packtpub.com
Credits
Author
Tony Fischetti
Reviewer
Dipanjan Sarkar
Commissioning Editor
Akram Hussain
Acquisition Editor
Meeta Rajani
Content Development Editor
Anish Dhurat
Technical Editor
Siddhesh Patil
Copy Editor
Sonia Mathur
Project Coordinator
Bijal Patel
Proofreader
Safis Editing
Indexer
Monica Ajmera Mehta
Graphics
Disha Haria
Production Coordinator
Conidon Miranda
Cover Work
Conidon Miranda
About the Author
Tony Fischetti
is a data scientist at College Factual, where he gets to use R
everyday to build personalized rankings and recommender systems. He graduated
in cognitive science from Rensselaer Polytechnic Institute, and his thesis was
strongly focused on using statistics to study visual short-term memory.
Tony enjoys writing and contributing to open source software, blogging at
http://www.onthelambda.com
, writing about himself in third person, and sharing
his knowledge using simple, approachable language and engaging examples.
The more traditionally exciting of his daily activities include listening to records,
playing the guitar and bass (poorly), weight training, and helping others.
Because I'm aware of how incredibly lucky I am, it's really hard to
express all the gratitude I have for everyone in my life that helped
me—either directly, or indirectly—in completing this book. The
following (partial) list is my best attempt at balancing thoroughness
whilst also maximizing the number of people who will read this
section by keeping it to a manageable length.
First, I'd like to thank all of my educators. In particular, I'd like to
thank the Bronx High School of Science and Rensselaer Polytechnic
Institute. More specifically, I'd like the Bronx Science Robotics Team,
all it's members, it's team moms, the wonderful Dena Ford and
Cherrie Fleisher-Strauss; and Justin Fox. From the latter institution,
I'd like to thank all of my professors and advisors. Shout out to Mike
Kalsher, Michael Schoelles, Wayne Gray, Bram van Heuveln, Larry
Reid, and Keith Anderson (especially Keith Anderson).

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