PHP/Architect's Guide to Date and Time Programming
PHP/Architect's Guide to Date and Time Programming

Author: Derick Rethans

Publisher: Musketeers.Me, LLC

Published: 2009-04

Total Pages: 152

ISBN-13: 9780981034508

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If your development involves working with dates and times, then this book is a must-have. In this book, Derick Rethans (contributor to PHP's core date extension and well-known PHP expert) explores in great detail the subtle nuances of working with dates and times. Frequently PHP developers encounter unexpected results that adversely affect their software and web applications. This book will undoubtedly help them tackle those issues. This book covers a variety of areas including: history of calendars and time standards, giving the reader a better understanding of how date/time concepts evolved into the way they are today parsing date/time strings and the potential pitfalls a developer can encounter timezones, the quirks inherent in them, and how your application can handle these quirks formatting and representing times and dates correctly and dealing with the DateTime Object manipulating and working with past, future and recurring dates obtaining dates when timestamps aren't available format specifiers upgrading the master timezone database What are PHP experts saying about this book? "Complex date and time programming isn't just for international applications. Even in the US, we have to deal with up to nine different time zones, and shifting between these can be difficult. Derick is one of the most knowledgeable people I know when it comes to date and time programming. I have turned to him countless times for help, and now he brings that depth of knowledge to this book. If you need to parse dates and times, shift between time zones, or manipulate dates and times in your applications then this book is for you." - Ben Ramsey "If you ever have to deal with parsing or formatting timestamps, or dealing with timezones this is the definite reference to make your time related PHP coding tasks fast and simple!" -Elizabeth Marie Smith This is the most comprehensive book on date/time data for PHP available, and one that any PHP developer can't do without.

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 Data Book
The Data Book

Author: Meredith Zozus

Publisher: CRC Press

Published: 2017-07-12

Total Pages: 255

ISBN-13: 1351647733

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The Data Book: Collection and Management of Research Data is the first practical book written for researchers and research team members covering how to collect and manage data for research. The book covers basic types of data and fundamentals of how data grow, move and change over time. Focusing on pre-publication data collection and handling, the text illustrates use of these key concepts to match data collection and management methods to a particular study, in essence, making good decisions about data. The first section of the book defines data, introduces fundamental types of data that bear on methodology to collect and manage them, and covers data management planning and research reproducibility. The second section covers basic principles of and options for data collection and processing emphasizing error resistance and traceability. The third section focuses on managing the data collection and processing stages of research such that quality is consistent and ultimately capable of supporting conclusions drawn from data. The final section of the book covers principles of data security, sharing, and archival. This book will help graduate students and researchers systematically identify and implement appropriate data collection and handling methods.

Data, a Love Story
Data, a Love Story

Author: Amy Webb

Publisher: Penguin

Published: 2014-01-28

Total Pages: 306

ISBN-13: 0142180459

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“Amy Webb found her true love after a search that's both charmingly romantic and relentlessly data-driven. Anyone who uses online dating sites must read her funny, fascinating book.”—Gretchen Rubin, #1 New York Times bestselling author of The Happiness Project After yet another disastrous date, Amy Webb was preparing to cancel her JDate membership when epiphany struck: her standards weren’t too high, she just wasn’t approaching the process the right way. Using her gift for data strategy, she found which keywords were digital-man magnets, analyzed photos, and then adjusted her (female) profile to make the most of that intel. Then began the deluge—dozens of men who actually met her own stringent requirements wanted to meet her. Among them: her future husband, now the father of her child.

Pacific Crest Trail Data Book
Pacific Crest Trail Data Book

Author: Benedict Go

Publisher: Wilderness Press

Published: 2013-08-13

Total Pages: 138

ISBN-13: 0899977456

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The essential, cut-to-the-chase handbook to the Pacific Crest Trail, based on the comprehensive Wilderness Press guidebooks to the PCT, has been completely updated. Packed with trail-tested features, it’s useful both on and off the trail, covering pre-trip planning for resupply stops, how to set daily on-the-trail mileage goals by knowing trail gradient and the locations of campsites, water sources, and facilities, and how to easily calculate distances between any two points on the trail, and how to planning both north-bound and south-bound hiking trips.