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Practical Data Analysis
Second Edition
A practical guide to obtaining, transforming, exploring, and
analyzing data using Python, MongoDB, and Apache Spark
Hector Cuesta
Dr. Sampath Kumar
BIRMINGHAM - MUMBAI
Practical Data Analysis
Second Edition
Copyright © 2016 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 authors, 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.
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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: October 2013
Second published: September 2016
Production reference: 1260916
Published by Packt Publishing Ltd.
Livery Place
35 Livery Street
Birmingham B3 2PB, UK.
ISBN 978-1-78528-971-2
www.packtpub.com
Credits
Authors
Hector Cuesta
Dr. Sampath Kumar
Reviewers
Chandana N. Athauda
Mark Kerzner
Commissioning Editor
Amarabha Banarjee
Acquisition Editor
Denim Pinto
Content Development Editor
Divij Kotian
Technical Editor
Rutuja Vaze
Copy Editor
Safis Editing
Project Coordinator
Ritika Manoj
Proofreader
Safis Editing
Indexer
Tejal Daruwale Soni
Production Coordinator
Melwyn Dsa
Cover Work
Melwyn Dsa
About the Authors
Hector Cuesta
is founder and Chief Data Scientist at Dataxios, a machine intelligence
research company. Holds a BA in Informatics and a M.Sc. in Computer Science. He
provides consulting services for data-driven product design with experience in a variety of
industries including financial services, retail, fintech, e-learning and Human Resources. He
is an enthusiast of Robotics in his spare time.
You can follow him on Twitter at
https://twitter.com/hmCuesta
.
I would like to dedicate this book to my wife Yolanda, and to my wonderful children Damian and
Isaac for all the joy they bring into my life. To my parents Elena and Miguel for their constant
support and love.
Dr. Sampath Kumar
works as an assistant professor and head of Department of Applied
Statistics at Telangana University. He has completed M.Sc., M.Phl., and Ph. D. in statistics.
He has five years of teaching experience for PG course. He has more than four years of
experience in the corporate sector. His expertise is in statistical data analysis using SPSS,
SAS, R, Minitab, MATLAB, and so on. He is an advanced programmer in SAS and matlab
software. He has teaching experience in different, applied and pure statistics subjects such
as forecasting models, applied regression analysis, multivariate data analysis, operations
research, and so on for M.Sc. students. He is currently supervising Ph.D. scholars.

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