This practical book shows you how to bundle reusable R functions, sample data, and documentation together by applying author Hadley Wickham’s package development philosophy. In the process, you’ll work with devtools, roxygen, and testthat, a set of R packages that automate common development tasks. Devtools encapsulates best practices that Hadley has learned from years of working with this programming language. Ideal for developers, data scientists, and programmers with various backgrounds, this book starts you with the basics and shows you how to improve your package writing over time. You’ll learn to focus on what you want your package to do, rather than think about package structure. Learn about the most useful components of an R package, including vignettes and unit tests Automate anything you can, taking advantage of the years of development experience embodied in devtools Get tips on good style, such as organizing functions into files Streamline your development process with devtools Learn the best way to submit your package to the Comprehensive R Archive Network (CRAN) Learn from a well-respected member of the R community who created 30 R packages, including ggplot2, dplyr, and tidyr

    Providing tactical wireless security implementation coverage by showing how to execute the attacks and implement the defenses, this title demonstrates how attackers identify and exploit wireless network weaknesses and covers various wireless technologies - WiFi/802.11, Bluetooth, IRDA, 3G Wireless, and more.

    'Programming The World Wide Web', written by bestselling author, Robert Sebesta, provides a comprehensive introduction to the programming tools and skills required for building and maintaining server sites on the Web.

    The four Vega brothers were all traumatized by their father's experience with his mate and all vowed to be single forever. They have just returned from fighting overseas in the Shifter Special Forces to find out that their father has just died, and bad news turns worse when they find the will which states that all four brothers must get married and find mates within a year, or they lose their beloved family ranch forever.After polishing off a bottle of wine to wash down the pain killers for the root canal that she just had, Ava King is feeling a little loopy. She OD's on some inspirational quotes on her Pinterest account and is feeling on top of the world. But when she wakes up her whole world comes crashing down. In the fog of her headache, she remembers that she left a message for her boss, quitting her job, sent a text to her deadbeat boyfriend, breaking up with him, and signed up to a mail order bride website in another state. So when she gets a call for a date, she has nothing to lose and drives the eleven hours from Seattle to Colwood, Montana.Ava and Julius meet on the mail order bride website and quickly hit it off. But as they're starting to fall in love the truth comes out and it rips them apart. Julius is in danger of losing the Vega Ranch but that's nothing compared to the threat of losing his mate.Book 2: Vega Brothers: KhanKodiak bear shifter, Khan Vega, is being forced to take on a mate and get married. He has lots of options but there's only one true option for him: a curvy woman from his past that he just can't let go of. It's too bad that she wants nothing to do with him.Bailey Lewis, hasn't spoken to her ex in five years since the day he just vanished from her life without a word of explanation. He had left her with more than just a broken heart, though, he had left her with a little cub growing in her stomach.When the two former lovers get thrust back into each other's lives will Bailey be able to reveal the stunning secret that she's been hiding for five years? And with a larger threat looming over Vega Ranch, will Khan and Bailey ever get the happily ever after they desperately want?Book 3: Vega Brothers: AlexanderPolar bear shifter, Alexander Vega, is the last Vega brother who anyone thought would take on a mate. He's surly, gruff, grumpy and just plain rude. And that's on a good day. He hates women and doesn't want them anywhere near the Vega Ranch. But his bear has other plans...News reporter, Elena King, has come to the Vega Ranch to visit her sister Ava. What starts off as a nice visit quickly goes down hill when a hot, muscular naked man comes running out of the forest, throws her over his shoulder and takes her to an abandoned cabin in the woods. Her anger turns to fascination to something more when she realizes the true nature of the man living with the wild beast inside him.Alexander will do whatever it takes to claim Elena as his mate but it may not matter either way. General Samson is returning in a few days to bring the polar bear shifter back to military service, and he'll be parted from Elena potentially forever.Book 4: Vega Brothers: HannibalMontana's Most Eligible Bachelor and bear shifter, Hannibal, is losing his mind. His face has been plastered on the cover of the country's most popular newspaper, his three brothers are pressuring him like mad to get married, and he has crazed, money-hungry women banging down his door. He doesn't want a mate and everywhere he looks, people are trying to shove one down his throat.BBW, Mikki, has just settled down in the spectacular town of Colwood, Montana. She has a job that she likes at the bar in town and everything is going perfectly for the first time in a long time until she makes an innocent suggestion to the hot, frustrated bachelor who walks into her bar. He takes her pretend engagement suggestion as an invitation and her nice, new life gets flipped upside down on her head.Hannibal and Mikki's fake engagement begins to grow into something more, but is it acting or are the feelings real? And with the military threat from the Vega brother's past coming to a head, will any of it really matter?-----BONUS BOOKThe Bear Shifters of Clawed Ranch series, Book #1The Clawed Squad: StetsonKylee Black is the Sheriff in Colwood, Montana. She likes to keep the quiet sleepy mountain town drama free. Which means, shifter free. So when a large squad of ex-con bear shifters show up out of the blue and move onto the Vega Ranch, she has a big problem with it. Especially with the huge sexy one, Stetson Evans, who keeps haunting her dreams with those vexing green eyes.Stetson is not mate material. He's destined to be the grumpy bear of The Clawed Squad. Broken. Tormented. Alone. That's how it has always been and that's how it will always be. Until he meets Kylee, the tough talking Sheriff of his new town. She brings out a new side of him that is both exciting and terrifying. Will the meanest shifter in The Clawed Squad be able to convince the beautiful curvy Sheriff that all shifters aren't bad?But Stetson is not just up against Kylee's long held prejudices. They're both up against a dangerous secret that could destroy the two of them and will have them both asking a very important question: Can you change fate?

    Another is found dead in a dumpster. All five of them go to the same school and are on a list of witnesses to another crime.Because he's in bad standing with his boss, Harry is given the task of protecting a possible future victim, but Harry isn't always known to follow his boss's orders.Soon, he'll risk everything while racing to stop a killer who has left everyone else in the homicide squad shaking in terror.BOOK 2: RUN GIRL RUN:When a mother and her child are pulled out of the harbor in their car, the case seems pretty straightforward for Miami PD and Detective Harry Hunter.Everything points to a murder-suicide.They were homeless, living in their car, and the mother decided to end it all for them both by driving into the water.But the case is not what it looks like, Detective Harry Hunter soon realizes.Harry’s daughter is carrying devastating knowledge about their deaths, and soon she becomes the killer’s next target.As Harry races to protect her, he is betrayed by someone he thought he knew, leaving him terrified of trusting anyone in a town filled with liars.BOOK 3: NO OTHER WAY:Three women went on a road trip to Key West. Only two returned. When asked what happened, their stories don’t completely match.Who is telling the truth?What are they hiding?Detective Harry Hunter of the Miami PD is in church on a peaceful Sunday morning when a young teenager pulls out a gun and shoots his own father.Once the shock is gone, Harry starts to ask himself the question no one else seems to care about: What makes a young boy want to kill his own father?When more blood is shed, Harry suspects there’s a secret buried in this town that no one wants unearthed. What are the people around him not telling him?Scroll up and grab three thrilling, suspenseful mysteries today.

    These tools help programmers build compilers and interpreters, but they also have a wider range of applications.The second edition contains completely revised tutorial sections for novice users and reference sections for advanced users. This edition is twice the size of the first and has an expanded index.The following material has been added:Each utility is explained in a chapter that covers basic usage and simple, stand-alone applications How to implement a full SQL grammar, with full sample code Major MS-DOS and Unix versions of lex and yacc are explored in depth, including AT&T lex and yacc, Berkeley yacc, Berkeley/GNU Flex, GNU Bison, MKS lex and yacc, and Abraxas PCYACC

    Similar to prayer shawls, friendship shawls are handmade gifts of caring. They're perfect for special occasions or simply as friendship gifts. In addition, these shawls make wonderful gifts for individuals in nursing homes, hospitals, and shelters. Includes 10 shawls to knit.

    Anderson has written 160 books—nearly fifteen million words!—most of them by dictating into a hand-held recorder while hiking. Award-winning novelist and short story writer Martin L. Shoemaker dictates chapters and stories while driving, turning his daily commute into a productive work session. These two die-hard “dictators,” share their techniques and insights into how dictation can help you *Improve your writing productivity *Use otherwise lost time to brainstorm, plot, develop characters, write articles, and more *Get inspired by leaving your confined office and getting a fresh perspective elsewhere *Stay in shape while writing On Being a Dictator, part of the Million Dollar Writing Series, will help you think outside the box, consider a different writing method, and up your game in the fast-paced ever-changing world of publishing.

    Offering a gentle learning curve, PHP is an accessible yet powerful language for creating dynamic web pages. As its popularity has grown, PHP's basic feature set has become increasingly more sophisticated. Now PHP 5 boasts advanced features--such as new object-oriented capabilities and support for XML and Web Services--that will please even the most experienced web professionals while still remaining user-friendly enough for those with a lower tolerance for technical jargon.If you've wanted to try your hand at PHP but haven't known where to start, then Learning PHP 5 is the book you need. If you've wanted to try your hand at PHP but haven't known where to start, then Learning PHP 5 is the book you need. With attention to both PHP 4 and the new PHP version 5, it provides everything from a explanation of how PHP works with your web server and web browser to the ins and outs of working with databases and HTML forms. Written by the co-author of the popular PHP Cookbook, this book is for intelligent (but not necessarily highly-technical) readers. Learning PHP 5 guides you through every aspect of the language you'll need to master for professional web programming results. This book provides a hands-on learning experience complete with exercises to make sure the lessons stick.Learning PHP 5 covers the following topics, and more:How PHP works with your web browser and web server PHP language basics, including data, variables, logic and looping Working with arrays and functions Making web forms Working with databases like MySQL Remembering users with sessions Parsing and generating XML DebuggingWritten by David Sklar, coauthor of the PHP Cookbook and an instructor in PHP, this book offers the ideal classroom learning experience whether you're in a classroom or on your own. From learning how to install PHP to designing database-backed web applications, Learning PHP 5 will guide you through every aspect of the language you'll need to master to achieve professional web programming results.

    But in Cycling Past 50, author Joe Friel shows cyclists that with proper training and the right attitude, the years after 50 can be their best ever.Written for cyclists of all types-road riders, mountain bikers, track racers-this book provides an in-depth look at the full range of considerations for cycling successfully into and through middle age.Joe Friel, a writer and contributing editor to several top cycling publications and a dedicated rider himself, will inspire cyclists toward better performance and more biking enjoyment as he presents:- basic principles of training; - advanced workouts to improve endurance, climbing ability, and sprinting; - training advice for 100-mile events and multi-day tours; - planning tips and a workout program for getting into racing form; - injury prevention tips and exercises; and - body fueling advice.In addition to explaining the physical adjustments seasoned cyclists can make to keep their biking effective and satisfying, Friel discusses the mental aspects of cycling successfully into middle age. He explains the importance of developing a positive attitude, maintaining a high level of motivation, and taking pride in their accomplishments. He also reminds cyclists that, above all, biking should be a fun activity that should be shared with fellow riders, family, and friends.

    Some books try to give you copy-and-paste instructions for how to deal with every single system issue that may arise, but How Linux Works actually shows you how the Linux system functions so that you can come up with your own solutions. After a guided tour of filesystems, the boot sequence, system management basics, and networking, author Brian Ward delves into open-ended topics such as development tools, custom kernels, and buying hardware, all from an administrator's point of view. With a mixture of background theory and real-world examples, this book shows both "how" to administer Linux, and "why" each particular technique works, so that you will know how to make Linux work for you.

    It’s as easy as 1-2-3—simply personalize, print, and protect.      Suze Orman and her own estate trust attorney have created the most state-of-the-art documents found anywhere. There are more than $2,500 worth of estate documents in this kit. Why pay thousands of dollars when you can get the same documents in this kit for $19.95!      This kit includes:•     More than 50 state-of-the-art documents•     Free automatic on-line updates•     Verbal and written instructions taking you step by step through the four must-have documents•     Password protection securing multiple users’ information•     A tutorial that shows you everything you need to know•     10 electronic books                                         PC and Macintosh Compatible . . . and good in all 50 states!

    Here's a simple, practical handbook you can use and apply right now to improve your awareness, ability and happiness.Handbook for Preclears is a Dianetics self-processing manual containing fifteen powerful yet easily applied exercises to help you overcome barriers in your life that are blocking your true potentials.

    You must first approach the subject with the proper sense of perception, with the ability to visualize the finished print before you commit a scene to pixels, but still be flexible and spontaneous. Master Fine Art photographer Vincent Versace has spent his career learning and teaching the art of perception and how to translate it into stunning images. In Welcome to Oz,  he delves into what it means to approach digital photography cinematically, to use your perception, your camera, and Photoshop to capture the movement of life in a still image. Features: Adapt your workflow to the image so you always know how best to use your tools Turn a seemingly impossible photographic scenario into a successful image Practice “image harvesting” to combine the best parts of  many captures to create an optimum final result Create black and white prints that have the look, feel and “richness” of traditional silver prints without ever leaving the RGB color space 224 pages.

    Criminals succeed by exercising enormous creativity, and those defending against them must do the same.Beautiful Security explores this challenging subject with insightful essays and analysis on topics that include:The underground economy for personal information: how it works, the relationships among criminals, and some of the new ways they pounce on their prey How social networking, cloud computing, and other popular trends help or hurt our online security How metrics, requirements gathering, design, and law can take security to a higher level The real, little-publicized history of PGP This book includes contributions from:Peiter "Mudge" Zatko Jim Stickley Elizabeth Nichols Chenxi Wang Ed Bellis Ben Edelman Phil Zimmermann and Jon Callas Kathy Wang Mark Curphey John McManus James Routh Randy V. Sabett Anton Chuvakin Grant Geyer and Brian Dunphy Peter Wayner Michael Wood and Fernando Francisco All royalties will be donated to the Internet Engineering Task Force (IETF).