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

    Essentially three books in one: provides thorough introductions to the PHP language and the MySQL database, and shows you how these two technologies can be effectively integrated to build powerful websites. Provides over 500 code examples, including real-world tasks such as creating an auto-login feature, sending HTML-formatted e-mail, testing password guessability, and uploading files via a web interface. Updated for MySQL 5, includes new chapters introducing triggers, stored procedures, and views.

    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.

    Blockchain protocols are taking the world by storm, and the Ethereum project, with its Turing-complete scripting language Solidity, has rapidly become a front-runner. This book presents the blockchain phenomenon in context; then situates Ethereum in a world pioneered by Bitcoin.See why professionals and non-professionals alike are honing their skills in smart contract patterns and distributed application development. You'll review the fundamentals of programming and networking, alongside its introduction to the new discipline of crypto-economics. You'll then deploy smart contracts of your own, and learn how they can serve as a back-end for JavaScript and HTML applications on the Web.Many Solidity tutorials out there today have the same flaw: they are written for "advanced" JavaScript developers who want to transfer their skills to a blockchain environment. Introducing Ethereum and Solidity is accessible to technology professionals and enthusiasts of all levels. You'll find exciting sample code that can move forward real world assets in both the academic and the corporate arenas. Find out now why this book is a powerful gateway for creative technologists of all types, from concept to deployment.What You'll LearnSee how Ethereum (and other cryptocurrencies) workCompare distributed apps (dapps) to web appsWrite Ethereum smart contracts in Solidity Connect Ethereum smart contracts to your HTML/CSS/JavaScript web applicationsDeploy your own dapp, coin, and blockchainWork with basic and intermediate smart contractsWho This Book Is For Anyone who is curious about Ethereum or has some familiarity with computer science Product managers, CTOs, and experienced JavaScript programmersExperts will find the advanced sample projects in this book rewarding because of the power of Solidity

    With no prior knowledge of game development or 3D required, you will learn from scratch, taking each concept at a time working up to a full 3D mini-game. You'll learn scripting with C# or JavaScript and master the Unity development environment with easy-to-follow stepwise tasks. If you're a designer or animator who wishes to take their first steps into game development or prototyping, or if you've simply spent many hours sitting in front of video games, with ideas bubbling away in the back of your mind, Unity and this book should be your starting point. No prior knowledge of game production is required, inviting you to simply bring with you a passion for making great games.

    This book teaches basic Artificial Intelligence algorithms such as dimensionality, distance metrics, clustering, error calculation, hill climbing, Nelder Mead, and linear regression. These are not just foundational algorithms for the rest of the series, but are very useful in their own right. The book explains all algorithms using actual numeric calculations that you can perform yourself. Artificial Intelligence for Humans is a book series meant to teach AI to those without an extensive mathematical background. The reader needs only a knowledge of basic college algebra or computer programming—anything more complicated than that is thoroughly explained. Every chapter also includes a programming example. Examples are currently provided in Java, C#, R, Python and C. Other languages planned.

    Covers all the topics needed by computer scientists with a sometimes humorous approach that reviewers found refreshing. The goal of the book is to provide a firm understanding of the principles and the big picture of where computer theory fits into the field.

    At $29 and cheaper than a good pizza, you will get the book in its current partial form, along with all future chapters, updates, and fixes for free. As of the day I wrote this description, Code Bright had 130 pages and was just getting started. To give you some perspective on how detailed it is, Code Happy was 127 pages in its complete state. Want to know more? Carry on reading.Welcome back to Laravel. Last year I wrote a book about the Laravel PHP framework. It started as a collection of tutorials on my blog, and eventually became a full book. I definitely didn’t expect it to be as popular as it was. Code Happy has sold almost 3000 copies, and is considered to be one of the most valuable resourcesfor learning the Laravel framework.Code Bright is the spiritual successor to Code Happy. The framework has grown a lot in the past year, and has changed enough to merit a new title. With Code Bright I hope to improve on Code Happy with every way, my goal is, to once again, build the most comprehensive learning experience for the framework. Oh, and to still be funny. That’s very important to me.Laravel Code Bright will contain a complete learning experience for all of the framework’s features. The style of writing will make it approachable for beginners, and a wonderful reference resource for experienced developers alike.You see, people have told me that they enjoyed reading Code Happy, not only for its educational content, but for its humour, and for my down to earth writing style. This is very important to me. I like to write my books as if we were having a conversation in a bar.When I wrote Code Happy last year, I was simply a framework enthusiast. One of the first to share information about the framework. However, since then I have become a committed member of the core development team. Working directly with the framework author to make Laravel a wonderful experience for the developers of the world.One other important feature of both books, is that they are published while in progress. This means that the book is available in an incomplete state, but will grow over time into a complete title. All future updates will be provided for free.What this means is that I don’t have to worry about deadlines, or a fixed point of completion. It leads to less stress and better writing. If I think of a better way to explain something, I can go back and change it. In a sense, the book will never be completed. I can constantly add more information to it, until it becomes the perfect resource.Given that this time I am using the majority of my spare time to write the title (yes, I have a full time job too!), I have raised the price a little to justify my invested time. I was told by many of my past readers that they found the previous title very cheap for the resource that it grew into, so if you are worried about the new price, then let me remind you what you will get for your 29 bucks.The successor to Code Happy, seen by many as the #1 learning resource for the Laravel PHP framework.An unending source of information, chapters will be constantly added as needed until the book becomes a giant vault of framework knowledge.Comedy, and a little cheesy, but very friendly writing.

    '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.

    By using the Framework you will learn architectural best practices for designing and operating reliable, secure, efficient, and cost-effective systems in the cloud.

    In this new first edition, well-known author Behrouz Forouzan uses his accessible writing style and visual approach to simplify the difficult concepts of cryptography and network security. This edition also provides a website that includes Powerpoint files as well as instructor and students solutions manuals. Forouzan presents difficult security topics from the ground up. A gentle introduction to the fundamentals of number theory is provided in the opening chapters, paving the way for the student to move on to more complex security and cryptography topics. Difficult math concepts are organized in appendices at the end of each chapter so that students can first learn the principles, then apply the technical background. Hundreds of examples, as well as fully coded programs, round out a practical, hands-on approach which encourages students to test the material they are learning.

    « Funny Jokes » is one of the best compilations of jokes in English that will surely hold your attention. In this book you can find all sorts of jokes that will amuse you and will create a good mood for you. Have fun reading these hilarious jokes!

    

    Fishing, swimming, golf, tennis. Seems like the ideal location for a former secret agent posing as a retired police officer and part-time private investigator. Until people start disappearing. Suggested reading order for the Nicholas Colt series: COLT LADY 52 POCKET-47 CROSSCUT SNUFF TAG 9 KEY DEATH BLOOD TATTOO SYCAMORE BLUFF THE JACK REACHER FILES: FUGITIVE THE JACK REACHER FILES: VELOCITY (Novella) THE BLOOD NOTEBOOKS Note: Although published at a later date, the events in COLT and LADY 52 precede those in Jude Hardin's debut thriller POCKET-47. All of the books listed work as stand-alone thrillers, depending on reader preference. Nicholas Colt also appears in several short stories, including the one titled RATTLED and the one titled RACKED. Praise for Jude Hardin’s Thrillers: POCKET-47 sucked me in and held me enthralled. Author Jude Hardin keeps the pace frantic, the thrills non-stop, but best of all is his hero, the wonderfully ironic Nicholas Colt. This is a character I'm eager to follow through many adventures to come. —Tess Gerritsen, New York Times bestselling author of ICE COLD. The best PI debut I've read in years, fit to share shelf space with the best of Ross Macdonald, Sue Grafton, and Robert B. Parker. POCKET-47 is so hot you may burn your hands reading. Highly recommended. —J.A. Konrath, author of the Jack Daniels mysteries Hardin gets everything right in his powerhouse thriller debut, which introduces rock star–turned–PI Nicholas Colt. —Publishers Weekly on POCKET-47 KEY DEATH is an exhilarating thriller that punches way above its weight. It hits you hard and fast with crackling suspense, hair-raising twists and stunning revelations. Word of advice: don't start on this one unless you're prepared to stay up all night. —John Ling, author of THE BLASPHEMER Colt is a physical, no-holds-barred PI, reminiscent of Robert B. Parker's Spenser and Lee Child's Jack Reacher, and his debut is action-packed. With a hefty toll of dead bodies, some described in cringe-inducing detail, this is crime fiction at its rawest. Hard-boiled connoisseurs should make Colt's acquaintance now. —Booklist on POCKET-47 With CROSSCUT, Jude Hardin takes the PI novel and psychological suspense to a new, unrestrained level. Fast, fierce, and relentless. —David Morrell, New York Times bestselling creator of Rambo

    The aim of the book is to enable students to write effective C programs.The book starts with an introduction to programming in general followed by a detailed introduction to C programming. It then delves into a complete analysis of various constructs of C such as decision control and looping statements, functions, arrays, strings, pointers, structure and union, file management, and preprocessor directives. It also provides a separate chapter on linked list detailing the various kinds of linked lists and how they are used to allocate memory dynamically.A highly detailed pedagogical approach is followed throughout the book, which includes plenty of examples, figures, programming tips, keywords, and end-chapter exercises which make this book an ideal resource for students to master and fine-tune the art of writing C programs.