R for Data Science

R for Data Science

Author: Hadley Wickham

Publisher: "O'Reilly Media, Inc."

Published: 2016-12-12

Total Pages: 521

ISBN-13: 1491910364

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Learn how to use R to turn raw data into insight, knowledge, and understanding. This book introduces you to R, RStudio, and the tidyverse, a collection of R packages designed to work together to make data science fast, fluent, and fun. Suitable for readers with no previous programming experience, R for Data Science is designed to get you doing data science as quickly as possible. Authors Hadley Wickham and Garrett Grolemund guide you through the steps of importing, wrangling, exploring, and modeling your data and communicating the results. You'll get a complete, big-picture understanding of the data science cycle, along with basic tools you need to manage the details. Each section of the book is paired with exercises to help you practice what you've learned along the way. You'll learn how to: Wrangle—transform your datasets into a form convenient for analysis Program—learn powerful R tools for solving data problems with greater clarity and ease Explore—examine your data, generate hypotheses, and quickly test them Model—provide a low-dimensional summary that captures true "signals" in your dataset Communicate—learn R Markdown for integrating prose, code, and results


The Yes Factor

The Yes Factor

Author: Tonya Reiman

Publisher: Penguin

Published: 2010-04-29

Total Pages: 365

ISBN-13: 1101187212

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The premier guide to combining verbal and nonverbal communication to gain confidence, establish credibility and make lasting impressions Yes—a small word, but the key to opening doors both professional and personal. The power of The Yes Factor gets you the job, the promotion, or the second date. But getting a "yes" can be tricky. Tonya Reiman explains how communication works—what the words you speak actually say about you, and how the perfect pitch can help you achieve your goals, convince your boss or client you should get the account, give a killer presentation, or win control of the remote (without ticking off your spouse!). Combining verbal and nonverbal tricks—identifying types of communicators, recognizing subconscious motivations, and adopting covert communication techniques-The Yes Factor is a simple approach to influencing and framing communication so that your message resounds clearly, ensuring that your ideas are implemented effectively and that you present your best possible self. A leading body language expert and Fox News contributor, Reiman's accessible prose, firsthand anecdotes, step-by-step advice, sidebars, diagrams, and short quizzes make The Yes Factor the ultimate how-to for exuding confidence, establishing authority, gaining credibility, and making the lasting impression that will get you a "yes" everytime. Watch a Video


The IT FACTOR of a SIX FIGURE STYLIST (Get more clients and skyrocket your income)

The IT FACTOR of a SIX FIGURE STYLIST (Get more clients and skyrocket your income)

Author: Sharon Smith

Publisher: Lulu.com

Published: 2016-06-28

Total Pages: 116

ISBN-13: 1365159302

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Are you currently in the beauty industry, either as a stylist, a salon owner, nail tech, or even in the field of massage therapy? If you want to learn exactly how I went from failing at two salons, to making over 6 figures a year by "cracking the code to the IT factor" of marketing, getting more clients, boosting my income...and actually getting to enjoy more freedom and fun, then this guide is for you.


Factor Four

Factor Four

Author: Ernst U.von Weizsacker

Publisher: Routledge

Published: 2013-10-11

Total Pages: 353

ISBN-13: 1134177542

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Since the industrial revolution, progress has meant an increase in labour productivity. Factor Four describes a new form of progress, resource productivity, a form which meets the overriding imperative for the future (sustainability). It shows how at least four times as much wealth can be extracted from the resources we use. As the authors put it, the book is about doing more with less, but this is not the same as doing less, doing worse or doing without. In 1972, the Club of Rome published Limits to Growth, which sent shock waves around the world by arguing that we were rapidly running out of essential resources. This Report to the Club of Rome offers a solution. It lies in using resources more efficiently, in ways which can already be achieved, not at a cost, but at a profit. The book contains a wealth of examples of revolutionizing productivity, in the use of energy; from hypercars to low-energy beef; materials, from sub-surface drip irrigation to electronic books, transport, video conferencing to CyberTran, and demonstrating how much more could be generated from much less today. It explains how markets can be organized and taxes re-based to eliminate perverse incentives and reward efficiency, so wealth can grow while consumption does not. The benefits are enormous: profits will increase, pollution and waste will decrease and the quality of life will improve. Moreover, the benefits will be shared: progress will no longer depend on making ever fewer people more productive. Instead, more people and fewer resources can be employed. While for many developing countries the efficiency revolution may offer the only realistic chance of prosperity within a reasonable time span. The practical promise held out in this book is huge, but the authors show how it is up to each of us, as well as to businesses and governments, to make it happen.


The Fred Factor

The Fred Factor

Author: Mark Sanborn

Publisher: Crown Currency

Published: 2004-04-20

Total Pages: 145

ISBN-13: 038551364X

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NEW YORK TIMES BESTSELLER • The true story of an ordinary mail carrier whose approach to work and life has the power to transform the everyday into the extraordinary—now in an updated twentieth-anniversary edition “This beloved business classic has inspired millions of people over the years, and today Mark Sanborn’s transformative insights are more timely and necessary than ever.”—Jon Gordon, author of The Energy Bus and co-author of The Coffee Bean Meet Fred. In this timeless and powerful book, Mark Sanborn, member of the Speaker Hall of Fame, recounts the true story of Fred, an ordinary USPS carrier who introduced himself one day shortly after Sanborn had moved to a new home in Denver. Fred, however, was no average mailman. As Sanborn came to discover, Fred was the kind of worker who exemplifies everything “right” with customer service. Did people want packages left on the porch or prefer a notice to pick them up at the post office? Fred made sure he knew the answer. When another delivery service left a package at the wrong house, Fred shepherded it safely to the intended recipient. Others might have seen delivering mail as routine work, but Fred seized the chance to find meaning in the mundane, competing with himself every day to find opportunities to make his customers smile. We’ve all encountered people like Fred. In this deeply inspiring book, Sanborn illuminates the four basic principles anyone can use to bring fresh energy and creativity to our work and life: how to make a tangible difference every day, build stronger relationships, create real value for others without spending a penny, and constantly reinvent yourself. In this updated edition, Sanborn speaks to the seismic changes that have transformed the world of work in recent years—with employees increasingly hungry for purpose in their jobs—and outlines the book’s fresh applications. By following his principles, you, too, can find more excitement, fulfillment, and success in your career—and in your life.


Pre-Calculus Demystified

Pre-Calculus Demystified

Author: Rhonda Huettenmueller

Publisher: McGraw Hill Professional

Published: 2005-02-04

Total Pages: 478

ISBN-13: 0071469567

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Pre-Calculus Demystified leads the reader through all the intricacies and requirements of this essential course Whether you need to pass a class, a college requirement, or get a leg up on more advanced topics, this book provides clear explanation with a wealth of questions, answers and practical examples. Packed with practical examples, graphs, and Q&As, this complete self-teaching guide from the best-selling author of Algebra Demystified covers all the essential topics, including: absolute value, nonlinear inequalities, functions and their graphs, inverses, proportion and ratio, and much more.


A First Course in Factor Analysis

A First Course in Factor Analysis

Author: Andrew L. Comrey

Publisher: Psychology Press

Published: 2013-11-12

Total Pages: 443

ISBN-13: 1317844076

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The goal of this book is to foster a basic understanding of factor analytic techniques so that readers can use them in their own research and critically evaluate their use by other researchers. Both the underlying theory and correct application are emphasized. The theory is presented through the mathematical basis of the most common factor analytic models and several methods used in factor analysis. On the application side, considerable attention is given to the extraction problem, the rotation problem, and the interpretation of factor analytic results. Hence, readers are given a background of understanding in the the theory underlying factor analysis and then taken through the steps in executing a proper analysis -- from the initial problem of design through choice of correlation coefficient, factor extraction, factor rotation, factor interpretation, and writing up results. This revised edition includes introductions to newer methods -- such as confirmatory factor analysis and structural equation modeling -- that have revolutionized factor analysis in recent years. To help remove some of the mystery underlying these newer, more complex methods, the introductory examples utilize EQS and LISREL. Updated material relating to the validation of the Comrey Personality Scales also has been added. Finally, program disks for running factor analyses on either an IBM-compatible PC or a mainframe with FORTRAN capabilities are available. The intended audience for this volume includes talented but mathematically unsophisticated advanced undergraduates, graduate students, and research workers seeking to acquire a basic understanding of the principles supporting factor analysis. Disks are available in 5.25" and 3.5" formats for both mainframe programs written in Fortran and IBM PCs and compatibles running a math co-processor.