R PackagesTurn 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. ...
Learning MySQL and MariaDBIf you're a programmer new to databases - or just new to MySQL and its community-driven variant, MariaDB - you've found the perfect introduction. This hands-on guide provides an easy, step-by-step approach to installing, using, and maintaining these popular relational database engines.
Author Russell Dyer, Curriculum Manager at MariaDB and former editor of the MySQL Knowledge Base, takes you through database design and the basics of data management and manipulation, using real-world examples and many practical tips. Exercises and review questions help you practice what you've just learned. ...
Managing Virtual Infrastructure with Veeam ONEVeeam ONE virtual system monitoring applications enable IT support teams to proactively discover system issues before they arise, helping companies to sustain their current business needs and predict growth opportunities. Veeam ONE provides effective protection and management of the entire virtual infrastructure that any major company needs in order to protect their hosts, management servers, and failover clusters.
This book will provide you with the skills to quickly dive into how to monitor your Veeam ONE interface and get clients' data and adjust tasks and events, as well as viewing each dashboard user interface and monitoring notification settings. We will also see how to access Veeam ONE reporter and use dashboards to view reports at a glance, and learn how to handle reports. Also covered is application deployment, automation of virtual infrastructure data collection, and e-mail notifications. This book will also equip you with knowledge on how to use alert mechanisms in Veeam ...
Lo-Dash EssentialsLo-Dash Essentials walks you through the Lo-Dash utility library, which promises consistency and performance in JavaScript development. This book looks into the most common functions and the various contexts in which they're used. You'll first start with object types and their properties, then you'll dive into larger development patterns, such as MapReduce, and how to chain functionality together. Following this, you'll learn how to make suitable builds for various environments, and discover how high-level patterns complement one another and how they lead to reusable building blocks for applications. Finally, you will gain some practical exposure to Lo-Dash by working alongside other libraries, and learn some useful techniques for improving performance. ...
Neo4j EssentialsWith a rise in the popularity of NoSQL databases, Neo4j provides a viable alternative for storage, processing, and querying highly connected data natively in the form of graphs. It saves you the trouble of tabular data formats and join operations while providing a fast querying language called Cypher, which is declarative and works on the principle of pattern matching. It is an open source database and has been tailored to be integrated into a wide variety of scenarios, platforms, and tools.
This book will guide you from the phase where you have to choose the appropriate license towards the deployment phase, instilling good design practices along the way. It will cover every required phase needed by a successful project. Using a fictitious project as a case study, you will learn the various implementation details and concepts of Neo4j that will help you develop your use cases quickly. ...
KnockoutJS EssentialsKnockoutJS is a Model View ViewModel (MVVM) framework that allows you to simplify the design of complex user. Knockout makes data manipulation simple and leads to maintainable web applications.
KnockoutJS Essentials gives you an insight into the best practices when designing and building MVVM web applications using the KnockoutJS framework. Packed with real-world tasks, this book starts with an introduction to the Knockout library, helping you make organizational and design decisions. You get a walk-through of the key concepts and terms that are common to development of Knockout applications. Finally, you will learn about the full-stack Knockout framework DurandalJS, which will give you all the tools you need to write complete single-page applications. ...
IntelliJ IDEA EssentialsStarting with a walkthrough of the main workspace, you will get up and running with IDEA from the word go. You will learn how to exploit IDEA's software development tools and use the various product features such as source code control, the debugger, and the many code generation tools.
You will then move on to advanced topics such as how IntelliJ helps in version control, managing change lists, viewing differences and changes, and reverting changes. You will also learn how IDEA can be used for agile development and web development, as well as its integration with frameworks such as Gradle.
Complete with tips and tricks, this book will make sure that you have an in-depth and extensive knowledge of informed programming. ...
Mastering Entity FrameworkData access is an integral part of any software application. Entity Framework provides a model-based system that makes data access effortless for developers by freeing you from writing similar data access code for all of your domain models.
Mastering Entity Framework provides you with a range of options when developing a data-oriented application. You'll get started by managing the database relationships as Entity relationships and perform domain modeling using Entity Framework. You will then explore how you can reuse data access layer code such as stored procedures and table-valued functions, and perform various typical activities such as validations and error handling. You'll learn how to retrieve data by querying the Entity Data Model and understand how to use LINQ to Entities and Entity SQL to query the Entity Data Model. ...
Learning SaltStackSaltStack is one of the best infrastructure management platforms available. It provides powerful tools for defining and enforcing the state of your infrastructure in a clear, concise way.
This book will start with the installation and setup of Salt along with your first commands, and will take you through all the tools you'll need to manage your infrastructure. You'll learn how to use SaltStack's remote execution system to run commands across your whole infrastructure in seconds. Then, with SaltStack's configuration management system, you'll be able to define the state of your infrastructure in a reproducible, stable manner. You'll also learn a number of other tools within SaltStack that will allow you to create an adaptive, reactive, and self-healing infrastructure. Finally, by the end of the book, you'll be able to build a reliable, scalable, secure, high-performance infrastructure and fully utilize the power of cloud computing. ...
Learning Python Data VisualizationThe best applications use data and present it in a meaningful, easy-to-understand way. Packed with sample code and tutorials, this book will walk you through installing common charts, graphics, and utility libraries for the Python programming language.
Firstly you will discover how to install and reference libraries in Visual Studio or Eclipse. We will then go on to build simple graphics and charts that allow you to generate HTML5-ready SVG charts and graphs, along with testing and validating your data sources. We will also cover parsing data from the Web and offline sources, and building a Python charting application using dynamic data. Lastly, we will review other popular tools and frameworks used to create charts and import/export chart data. By the end of this book, you will be able to represent complex sets of data using Python. ...