Advanced R PDF Download

Author: Hadley Wickham
Publisher: CRC Press
ISBN: 1498759807
Category : Mathematics
Languages : en
Pages : 669

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Book Description
An Essential Reference for Intermediate and Advanced R Programmers Advanced R presents useful tools and techniques for attacking many types of R programming problems, helping you avoid mistakes and dead ends. With more than ten years of experience programming in R, the author illustrates the elegance, beauty, and flexibility at the heart of R. The book develops the necessary skills to produce quality code that can be used in a variety of circumstances. You will learn: The fundamentals of R, including standard data types and functions Functional programming as a useful framework for solving wide classes of problems The positives and negatives of metaprogramming How to write fast, memory-efficient code This book not only helps current R users become R programmers but also shows existing programmers what’s special about R. Intermediate R programmers can dive deeper into R and learn new strategies for solving diverse problems while programmers from other languages can learn the details of R and understand why R works the way it does.

Author: Mike Andrews
Publisher: Addison-Wesley Professional
ISBN: 0321657519
Category : Computers
Languages : en
Pages : 241

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Book Description
Rigorously test and improve the security of all your Web software! It’s as certain as death and taxes: hackers will mercilessly attack your Web sites, applications, and services. If you’re vulnerable, you’d better discover these attacks yourself, before the black hats do. Now, there’s a definitive, hands-on guide to security-testing any Web-based software: How to Break Web Software. In this book, two renowned experts address every category of Web software exploit: attacks on clients, servers, state, user inputs, and more. You’ll master powerful attack tools and techniques as you uncover dozens of crucial, widely exploited flaws in Web architecture and coding. The authors reveal where to look for potential threats and attack vectors, how to rigorously test for each of them, and how to mitigate the problems you find. Coverage includes · Client vulnerabilities, including attacks on client-side validation · State-based attacks: hidden fields, CGI parameters, cookie poisoning, URL jumping, and session hijacking · Attacks on user-supplied inputs: cross-site scripting, SQL injection, and directory traversal · Language- and technology-based attacks: buffer overflows, canonicalization, and NULL string attacks · Server attacks: SQL Injection with stored procedures, command injection, and server fingerprinting · Cryptography, privacy, and attacks on Web services Your Web software is mission-critical–it can’t be compromised. Whether you’re a developer, tester, QA specialist, or IT manager, this book will help you protect that software–systematically.

Author: Matteo Sonza Reorda
Publisher: Springer Science & Business Media
ISBN: 1846281458
Category : Technology & Engineering
Languages : en
Pages : 187

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Book Description
New manufacturing technologies have made possible the integration of entire systems on a single chip. This new design paradigm, termed system-on-chip (SOC), together with its associated manufacturing problems, represents a real challenge for designers. SOC is also reshaping approaches to test and validation activities. These are beginning to migrate from the traditional register-transfer or gate levels of abstraction to the system level. Until now, test and validation have not been supported by system-level design tools so designers have lacked the infrastructure to exploit all the benefits stemming from the adoption of the system level of abstraction. Research efforts are already addressing this issue. This monograph provides a state-of-the-art overview of the current validation and test techniques by covering all aspects of the subject including: modeling of bugs and defects; stimulus generation for validation and test purposes (including timing errors; design for testability.

Author: Hadley Wickham
Publisher: "O'Reilly Media, Inc."
ISBN: 1491910542
Category : Computers
Languages : en
Pages : 201

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Book Description
Turn your R code into packages that others can easily download and use. 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

Author: Daniel J. Mosley
Publisher: Prentice Hall Professional
ISBN: 9780130084682
Category : Computers
Languages : en
Pages : 282

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Book Description
Offers advice on designing and implementing a software test automation infrastructure, and identifies what current popular testing approaches can and cannot accomplish. Rejecting the automation life cycle model, the authors favor limited automation of unit, integration, and system testing. They also present a control synchronized data-driven framework to help jump-start an automation project. Examples are provided in the Rational suite test studio, and source code is available at a supporting web site. Annotation copyrighted by Book News, Inc., Portland, OR.

Author: Kent Beck
Publisher: Addison-Wesley Professional
ISBN: 0137585233
Category : Computers
Languages : en
Pages : 241

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Book Description
Quite simply, test-driven development is meant to eliminate fear in application development. While some fear is healthy (often viewed as a conscience that tells programmers to "be careful!"), the author believes that byproducts of fear include tentative, grumpy, and uncommunicative programmers who are unable to absorb constructive criticism. When programming teams buy into TDD, they immediately see positive results. They eliminate the fear involved in their jobs, and are better equipped to tackle the difficult challenges that face them. TDD eliminates tentative traits, it teaches programmers to communicate, and it encourages team members to seek out criticism However, even the author admits that grumpiness must be worked out individually! In short, the premise behind TDD is that code should be continually tested and refactored. Kent Beck teaches programmers by example, so they can painlessly and dramatically increase the quality of their work.

Author: Hung Quoc Nguyen
Publisher: Happy About
ISBN: 1600050123
Category : Business & Economics
Languages : en
Pages : 128

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Book Description
This book addresses the fundamental issue of software testing and helps the reader understand the high-level elements necessary to better execute software test automation and outsourcing initiatives.

Author: Vijay Shinde
Publisher: Vijay Shinde
ISBN:
Category :
Languages : en
Pages : 133

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Book Description
Introducing the Most Helpful and Inexpensive Software Testing Study Guide: Stop yourself trying to figuring out how to succeed in your software testing career. Instead, take benefit of these proven methods and real-life examples. Being a software tester for over 9 years I personally know what it takes to get a job and advance in your software testing/QA career. Each and every page of this book consist of proven advice for handling the day to day software testing activities. Who should use this book? It doesn't matter if you are an undergraduate or graduate student or a fresher looking for a job in software testing or a professional working as a test engineer or a senior QA lead or a test manager, this eBook is designed to be used as the primary textbook and an all-in-one resource for software test engineers and developers. What You'll learn after reading this eBook... * You should be able to get a job with our comprehensive guide on resume and interview preparation. * Get started in software testing. * Learn best tips on how to become a skilled software tester who finds critical defects in any application * Learn how to manage defects like a pro. * Become a web testing expert. * Learn how to achieve exponential career growth and excel in your career. * Learn how to deal with the developers during uncomfortable project meetings. * Master the art of becoming a good team leader/manager. * Plug-in all real-life tips and examples into almost any of your career situations for a bright software testing career. This eBook strives to strike a perfect balance between theoretical concepts, which are covered rigorously as well as practical contexts thus allowing the readers to build a solid foundation in key methodologies, techniques, tips and tricks in the field of software testing. The clear terminology definitions and comprehensive real-life examples provide an easy way to master various software testing techniques. After reading this eBook you should be able to get started in software testing, learn great tips on how to be an effective tester who finds critical bugs in the application under test, learn how to deal with the developers during uncomfortable project meetings, master the art of how to become a good test team leader/manager and more.

Author: Tomas Beuzen
Publisher: CRC Press
ISBN: 1000555127
Category : Computers
Languages : en
Pages : 252

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Book Description
Python Packages introduces Python packaging at an introductory and practical level that’s suitable for those with no previous packaging experience. Despite this, the text builds up to advanced topics such as automated testing, creating documentation, versioning and updating a package, and implementing continuous integration and deployment. Covering the entire Python packaging life cycle, this essential guide takes readers from package creation all the way to effective maintenance and updating. Python Packages focuses on the use of current and best-practice packaging tools and services like poetry, cookiecutter, pytest, sphinx, GitHub, and GitHub Actions. Features: The book’s source code is available online as a GitHub repository where it is collaborated on, automatically tested, and built in real time as changes are made; demonstrating the use of good reproducible and clear project workflows. Covers not just the process of creating a package, but also how to document it, test it, publish it to the Python Package Index (PyPI), and how to properly version and update it. All concepts in the book are demonstrated using examples. Readers can follow along, creating their own Python packages using the reproducible code provided in the text. Focuses on a modern approach to Python packaging with emphasis on automating and streamlining the packaging process using new and emerging tools such as poetry and GitHub Actions.

Author: Management Association, Information Resources
Publisher: IGI Global
ISBN: 1668437031
Category : Computers
Languages : en
Pages : 2164

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Book Description
Software development continues to be an ever-evolving field as organizations require new and innovative programs that can be implemented to make processes more efficient, productive, and cost-effective. Agile practices particularly have shown great benefits for improving the effectiveness of software development and its maintenance due to their ability to adapt to change. It is integral to remain up to date with the most emerging tactics and techniques involved in the development of new and innovative software. The Research Anthology on Agile Software, Software Development, and Testing is a comprehensive resource on the emerging trends of software development and testing. This text discusses the newest developments in agile software and its usage spanning multiple industries. Featuring a collection of insights from diverse authors, this research anthology offers international perspectives on agile software. Covering topics such as global software engineering, knowledge management, and product development, this comprehensive resource is valuable to software developers, software engineers, computer engineers, IT directors, students, managers, faculty, researchers, and academicians.