Flex eBooks
Clojure for Finance
Clojure is a dynamic programming language with an emphasis on functional programming. Clojure is well suited to financial modeling as it is a functional programming language. Such languages help developers work with high-level mathematical abstractions without having to implement low-level code that handles the arithmetic operations. Starting with the importance of representing data and calculations effectively, this book will take you all the way to being competent in financial analytics and building financial applications. First, we introduce the notions of computation and finance, which will help you understand Clojure's utility to solve real-world problems in many domains, especially finance. Next, we will show you how to develop the simple-moving-average function by using the more advanced partition Clojure data transformation function. This function, along with others, will be used to calculate and manipulate data. ...
Clojure is a dynamic programming language with an emphasis on functional programming. Clojure is well suited to financial modeling as it is a functional programming language. Such languages help developers work with high-level mathematical abstractions without having to implement low-level code that handles the arithmetic operations. Starting with the importance of representing data and calculations effectively, this book will take you all the way to being competent in financial analytics and building financial applications. First, we introduce the notions of computation and finance, which will help you understand Clojure's utility to solve real-world problems in many domains, especially finance. Next, we will show you how to develop the simple-moving-average function by using the more advanced partition Clojure data transformation function. This function, along with others, will be used to calculate and manipulate data. ...
Couchbase Essentials
Couchbase is an extremely fast, flexible, and highly scalable database that applies MapReduce techniques and patterns to find data. Whether you need to store unstructured data or be able to store and retrieve vast amounts of data quickly, Couchbase Server is your database! This book gives you enough information to successfully set up a Couchbase cluster and provides details on basic server maintenance. It then goes on to give you a detailed overview of how to program against Couchbase Server using both its key/value features and its document capabilities. It also introduces you to the concept of creating views using Couchbase's implementation of MapReduce. This book will then conclude with a walkthrough of building an actual application from scratch using Couchbase. ...
Couchbase is an extremely fast, flexible, and highly scalable database that applies MapReduce techniques and patterns to find data. Whether you need to store unstructured data or be able to store and retrieve vast amounts of data quickly, Couchbase Server is your database! This book gives you enough information to successfully set up a Couchbase cluster and provides details on basic server maintenance. It then goes on to give you a detailed overview of how to program against Couchbase Server using both its key/value features and its document capabilities. It also introduces you to the concept of creating views using Couchbase's implementation of MapReduce. This book will then conclude with a walkthrough of building an actual application from scratch using Couchbase. ...
Git Essentials
Since its inception, Git has attracted skilled developers due to its robust, powerful, and reliable features. Its incredibly fast branching ability transformed a piece of code from a niche tool for former Linux Kernel developers into a mainstream distributed versioning system. Like most powerful tools, Git can be hard to approach since it has a lot of commands, subcommands, and options that easily confuse newcomers. The main purpose of Git Essentials is to help you overcome this fear and become adept at all basic tasks in Git. This book starts with an introduction to version control systems, and after this you'll delve deeply into the essentials of Git. This serves as a primer for the topics to follow such as branching and merging, creating and managing a GitHub personal repository, and fork and pull requests. You will then learn the art of cherry-picking, taking only commits you like, followed by Git blame. Finally, you'll learn how to migrate from SVN using Git tools or TortoiseGit a ...
Since its inception, Git has attracted skilled developers due to its robust, powerful, and reliable features. Its incredibly fast branching ability transformed a piece of code from a niche tool for former Linux Kernel developers into a mainstream distributed versioning system. Like most powerful tools, Git can be hard to approach since it has a lot of commands, subcommands, and options that easily confuse newcomers. The main purpose of Git Essentials is to help you overcome this fear and become adept at all basic tasks in Git. This book starts with an introduction to version control systems, and after this you'll delve deeply into the essentials of Git. This serves as a primer for the topics to follow such as branching and merging, creating and managing a GitHub personal repository, and fork and pull requests. You will then learn the art of cherry-picking, taking only commits you like, followed by Git blame. Finally, you'll learn how to migrate from SVN using Git tools or TortoiseGit a ...
Salt Essentials
Get a complete introduction to Salt, the widely used Python-based configuration management and remote execution tool. This practical guide not only shows system administrators how to manage complex infrastructures with Salt, but also teaches developers how to use Salt to deploy and manage their applications. Written by two Salt experts, this book provides the information you need to deploy Salt in a production infrastructure right away. You'll also learn how to customize Salt and use salt-cloud to manage your virtualization. If you have experience with Linux and data formats such as JSON or XML, you're ready to get started. ...
Get a complete introduction to Salt, the widely used Python-based configuration management and remote execution tool. This practical guide not only shows system administrators how to manage complex infrastructures with Salt, but also teaches developers how to use Salt to deploy and manage their applications. Written by two Salt experts, this book provides the information you need to deploy Salt in a production infrastructure right away. You'll also learn how to customize Salt and use salt-cloud to manage your virtualization. If you have experience with Linux and data formats such as JSON or XML, you're ready to get started. ...
Couchbase Essentials
Couchbase is an extremely fast, flexible, and highly scalable database that applies MapReduce techniques and patterns to find data. Whether you need to store unstructured data or be able to store and retrieve vast amounts of data quickly, Couchbase Server is your database! This book gives you enough information to successfully set up a Couchbase cluster and provides details on basic server maintenance. It then goes on to give you a detailed overview of how to program against Couchbase Server using both its key/value features and its document capabilities. It also introduces you to the concept of creating views using Couchbase's implementation of MapReduce. This book will then conclude with a walkthrough of building an actual application from scratch using Couchbase. ...
Couchbase is an extremely fast, flexible, and highly scalable database that applies MapReduce techniques and patterns to find data. Whether you need to store unstructured data or be able to store and retrieve vast amounts of data quickly, Couchbase Server is your database! This book gives you enough information to successfully set up a Couchbase cluster and provides details on basic server maintenance. It then goes on to give you a detailed overview of how to program against Couchbase Server using both its key/value features and its document capabilities. It also introduces you to the concept of creating views using Couchbase's implementation of MapReduce. This book will then conclude with a walkthrough of building an actual application from scratch using Couchbase. ...
Elasticsearch Server, 2nd Edition
This book begins by introducing the most commonly used Elasticsearch server functionalities, from creating your own index structure, through querying, faceting, and aggregations, and ends with cluster monitoring and problem diagnosis. As you progress through the book, you will cover topics such as starting Elasticsearch, creating a new index, and designing its proper structure. After that, you'll read about the query API that Elasticsearch exposes, as well as about filtering capabilities, aggregations, and faceting. Last but not least, you will get to know how to find similar documents by using similar functionalities and how to implement application alerts by using the prospective search functionality called percolator. Some advanced topics such as shard allocation control, gateway configuration, and how to use the discovery module will also be discussed. This book will also show you the possibilities of cluster state and health monitoring as well as how to use third-party tools. ...
This book begins by introducing the most commonly used Elasticsearch server functionalities, from creating your own index structure, through querying, faceting, and aggregations, and ends with cluster monitoring and problem diagnosis. As you progress through the book, you will cover topics such as starting Elasticsearch, creating a new index, and designing its proper structure. After that, you'll read about the query API that Elasticsearch exposes, as well as about filtering capabilities, aggregations, and faceting. Last but not least, you will get to know how to find similar documents by using similar functionalities and how to implement application alerts by using the prospective search functionality called percolator. Some advanced topics such as shard allocation control, gateway configuration, and how to use the discovery module will also be discussed. This book will also show you the possibilities of cluster state and health monitoring as well as how to use third-party tools. ...
Mastering Clojure Data Analysis
Clojure is a Lisp dialect built on top of the Java Virtual Machine. As data increasingly invades more and more parts of our lives, we continually need more tools to deal with it effectively. Data can be organized effectively using Clojure data tools. Mastering Clojure Data Analysis teaches you how to analyze and visualize complex datasets. With this book, you'll learn how to perform data analysis using established scientific methods with the modern, powerful Clojure programming language with the help of exciting examples drawn from real-world data. This will help you get to grips with advanced topics such as network analysis, the characteristics of social networks, applying topic modeling to get a handle on unstructured textual data, and GIS analysis to apply geospatial techniques to your data analysis problems. ...
Clojure is a Lisp dialect built on top of the Java Virtual Machine. As data increasingly invades more and more parts of our lives, we continually need more tools to deal with it effectively. Data can be organized effectively using Clojure data tools. Mastering Clojure Data Analysis teaches you how to analyze and visualize complex datasets. With this book, you'll learn how to perform data analysis using established scientific methods with the modern, powerful Clojure programming language with the help of exciting examples drawn from real-world data. This will help you get to grips with advanced topics such as network analysis, the characteristics of social networks, applying topic modeling to get a handle on unstructured textual data, and GIS analysis to apply geospatial techniques to your data analysis problems. ...
Getting Started with Laravel 4
PHP powers many of the largest websites on the planet. Yet, even though it was specifically created for the Web, its shortcomings never cease to frustrate developers. This is where a tool like Laravel comes in. Rather than reinventing the wheel, Laravel reuses tried and tested components and principles and bundles them to form a cohesive whole and makes PHP development enjoyable again. Getting Started with Laravel 4 is a practical and concise introduction to the Laravel PHP framework. It covers its fundamental concepts and presents the many features that will boost your productivity when developing web applications. After introducing the key concepts and installing Composer, you will build a CRUD application and add more features to it in each successive chapter. ...
PHP powers many of the largest websites on the planet. Yet, even though it was specifically created for the Web, its shortcomings never cease to frustrate developers. This is where a tool like Laravel comes in. Rather than reinventing the wheel, Laravel reuses tried and tested components and principles and bundles them to form a cohesive whole and makes PHP development enjoyable again. Getting Started with Laravel 4 is a practical and concise introduction to the Laravel PHP framework. It covers its fundamental concepts and presents the many features that will boost your productivity when developing web applications. After introducing the key concepts and installing Composer, you will build a CRUD application and add more features to it in each successive chapter. ...
Dart 1 for Everyone
Dart has changed significantly since the first printing of this book and Dart 1 for Everyone has kept up. Every chapter has been revised and some chapters have been almost completely rewritten since the first printing. The MVC project chapters dumped the old JavaScript-like event handlers for the sleek new streams interface, and the chapter on testing reflects the extensive changes in testing now available in Dart. You'll start writing Dart code on page 1, and throughout the book, you'll refactor that code to explore Dart's features: OOP, real libraries and packages, testing, and more. You'll learn how to write beautiful, maintainable application code that just works in all modern browsers. Caution: after reading you may develop an intense attachment to structured code and skinny jeans. ...
Dart has changed significantly since the first printing of this book and Dart 1 for Everyone has kept up. Every chapter has been revised and some chapters have been almost completely rewritten since the first printing. The MVC project chapters dumped the old JavaScript-like event handlers for the sleek new streams interface, and the chapter on testing reflects the extensive changes in testing now available in Dart. You'll start writing Dart code on page 1, and throughout the book, you'll refactor that code to explore Dart's features: OOP, real libraries and packages, testing, and more. You'll learn how to write beautiful, maintainable application code that just works in all modern browsers. Caution: after reading you may develop an intense attachment to structured code and skinny jeans. ...
Developing with Couchbase Server
Today's highly interactive websites pose a challenge for traditional SQL databases - the ability to scale rapidly and serve loads of concurrent users. With this concise guide, you'll learn how to build web applications on top of Couchbase Server 2.0, a NoSQL database that can handle websites and social media where hundreds of thousands of users read and write large volumes of information. Using food recipe information as examples, this book demonstrates how to take advantage of Couchbase's document-oriented database design, and how to store and query data with various CRUD operations. Discover why Couchbase is better than SQL databases with memcached tiers for managing data from the most interactive portions of your application. ...
Today's highly interactive websites pose a challenge for traditional SQL databases - the ability to scale rapidly and serve loads of concurrent users. With this concise guide, you'll learn how to build web applications on top of Couchbase Server 2.0, a NoSQL database that can handle websites and social media where hundreds of thousands of users read and write large volumes of information. Using food recipe information as examples, this book demonstrates how to take advantage of Couchbase's document-oriented database design, and how to store and query data with various CRUD operations. Discover why Couchbase is better than SQL databases with memcached tiers for managing data from the most interactive portions of your application. ...
Windows Server 2012 Hyper-V
Over a short span of time, server virtualization has been one of the most rapidly adopted technologies in IT business. Microsoft Hyper-V is a hardware-assisted hypervisor product, available as a server role in the Windows Server operating system. Windows Server 2012 Hyper-V provides cutting-edge server virtualization features for a scalable, flexible, and highly available virtual machine infrastructure. "Windows Server 2012 Hyper-V: Deploying Hyper-V Enterprise Server Virtualization Platform" is a comprehensive guide, which starts itself from basic virtualization and server consolidation concepts, and then goes deeper for discussing advanced topics, such as a Hyper-V scalability, failover, and virtual machine migration. ...
Over a short span of time, server virtualization has been one of the most rapidly adopted technologies in IT business. Microsoft Hyper-V is a hardware-assisted hypervisor product, available as a server role in the Windows Server operating system. Windows Server 2012 Hyper-V provides cutting-edge server virtualization features for a scalable, flexible, and highly available virtual machine infrastructure. "Windows Server 2012 Hyper-V: Deploying Hyper-V Enterprise Server Virtualization Platform" is a comprehensive guide, which starts itself from basic virtualization and server consolidation concepts, and then goes deeper for discussing advanced topics, such as a Hyper-V scalability, failover, and virtual machine migration. ...