R Statistical Application Development by Example Beginner's Guide

345 Pages·2013·10.59 MB·English

by  Prabhanjan Narayanachar Tattar

R Statistical Application
Development by Example
Beginner's Guide
Learn R Statistical Application Development from scratch
in a clear and pedagogical manner
Prabhanjan Narayanachar Tattar
BIRMINGHAM - MUMBAI
R Statistical Application Development by Example
Beginner's Guide
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First published: July 2013
Production Reference: 1170713
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Cover Image by Asher Wishkerman ([email protected])
Credits
Author Project Coordinator
Prabhanjan Narayanachar Tattar Anurag Banerjee
Reviewers Proofreaders
Mark ver der Loo Maria Gould
Mzabalazo Z. Ngwenya Paul Hindle
A Ohri
Tengfei Yin Indexer
Hemangini Bari
Acquisition Editor
Usha Iyer Graphics
Ronak Dhruv
Lead Technical Editor
Arun Nadar Production Coordinators
Melwyn D'sa
Technical Editors Zahid Shaikh
Madhuri Das
Mausam Kothari Cover Work
Melwyn D'sa
Amit Ramadas
Zahid Shaikh
Varun Pius Rodrigues
Lubna Shaikh
About the Author
Prabhanjan Narayanachar Tattar has seven years of experience with R software and
has also co-authored the book A Course in Statistics with R published by Narosa Publishing
House. The author has built two packages in R titled gpk and ACSWR. He has obtained a PhD
(Statistics) from Bangalore University under the broad area of Survival Analysis and published
several articles in peer-reviewed journals. During the PhD program, the author received
the young Statistician honors in IBS(IR)-GK Shukla Young Biometrician Award (2005) and
Dr. U.S. Nair Award for Young Statistician (2007) and also held a Junior and Senior Research
Fellowship of CSIR-UGC.
Prabhanjan is working as a Business Analysis Advisor at Dell Inc, Bangalore. He is working
for the Customer Service Analytics unit of the larger Dell Global Analytics arm of Dell.
I would like to thank Prof. Athar Khan, Aligarh Muslim University, whose
teaching during a shared R workshop inspired me to a very large extent.
My friend Veeresh Naidu has gone out of his way in helping and inspiring
me complete this book and I thank him for everything that defines our
friendship.
Many of my colleagues at the Customer Service Analytics unit of Dell Global
Analytics, Dell Inc. have been very tolerant of my stat talk with them and it
is their need for the subject which has partly influenced the writing of the
book. I would like to record my thanks to them and also my manager Debal
Chakraborty.
My wife Chandrika has been very cooperative and without her permission to
work on the book during weekends and housework timings this book would
have never been completed. Pranathi at 2 years and 9 months has started
school, the pre-kindergarten, and it is genuinely believed that one day she
will read this entire book.
I am also grateful to the reviewers whose constructive suggestions and
criticisms have helped the book reach a higher level than where it would
have ended up being without their help. Last and not least, I would like to
take the opportunity to thank Usha Iyer and Anurag Banerjee for their inputs
with the earlier drafts, and also their patience with my delays.
About the Reviewers
Mark van der Loo obtained his PhD at the Institute for Theoretical Chemistry at the
University of Nijmegen (The Netherlands). Since 2007 he has worked at the statistical
methodology department of the Dutch official statistics office (Statistics Netherlands).
His research interests include automated data cleaning methods and statistical computing.
At Statistics Netherlands he is responsible for the local R center of expertise, which supports
and educates users on statistical computing with R. Mark has coauthored a number of R
packages that are available via CRAN, namely editrules, deducorrect, rspa, extremevalues,
and stringdist. Together with Edwin de Jonge he authored the book Learning RStudio for R
Statistical Computing. A list of his publications can be found at www.markvanderloo.eu.
Mzabalazo Z. Ngwenya has worked extensively in the field of statistical consulting and
currently works as a biometrician. He holds an MSC in Mathematical Statistics from the
University of Cape Town and is at present studying towards a PhD (School of Information
Technology, University of Pretoria) in the field of Computational Intelligence. His research
interests include statistical computing, machine learning, spatial statistics, and simulation and
stochastic processes. Previously he was involved in reviewing Learning RStudio for R Statistical
Computing by Mark P.J. van der Loo and Edwin de Jonge, Packt Publishing
A Ohri is the founder of analytics startup Decisionstats.com. He has pursued graduation
studies from the University of Tennessee, Knoxville and the Indian Institute of Management,
Lucknow. In addition, he has a Mechanical Engineering degree from the Delhi College of
Engineering. He has interviewed more than 100 practitioners in analytics, including leading
members from all the analytics software vendors. He has written almost 1300 articles on
his blog besides guest writing for influential analytics communities. He teaches courses
in R through online education and has worked as an analytics consultant in India for the
past decade. He was one of the earliest independent analytics consultants in India and his
current research interests include spreading open source analytics, analyzing social media
manipulation, simpler interfaces to cloud computing, and unorthodox cryptography.
He is the author of R for Business Analytics.
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The work is dedicated to my father Narayanachar, the very first engineer who
influenced my outlook towards Science and Engineering. For the same reason,
my mother Lakshmi made me realize the importance of life and philosophy.