Book Image

Comprehensive Ruby Programming

By : Jordan Hudgens
Book Image

Comprehensive Ruby Programming

By: Jordan Hudgens

Overview of this book

Ruby is a powerful, general-purpose programming language that can be applied to any task. Whether you are an experienced developer who wants to learn a new language or you are new to programming, this book is your comprehensive Ruby coding guide. Starting with the foundational principles, such as syntax, and scaling up to advanced topics such as big data analysis, this book will give you all of the tools you need to be a professional Ruby developer. A few of the key topics are: object-oriented programming, built-in Ruby methods, core programming skills, and an introduction to the Ruby on Rails and Sinatra web frameworks. You will also build 10 practical Ruby programs. Created by an experienced Ruby developer, this book has been written to ensure it focuses on the skills you will need to be a professional Ruby developer. After you have read this book, you will be ready to start building real-world Ruby projects.
Table of Contents (20 chapters)

How to develop a big data analysis application in Ruby

In this section, we are going to work on a big data classification algorithm, based on a decision tree algorithm that you can use in a real-world scenario.

Let's say you're working for a company and want to find out your ideal market. You also want to know who are the customers buying your product or service. To answer these questions, you can leverage the vast amounts of data you have collected from historical customers.

As with the previous lesson, let's call our rubygems and decisiontree code libraries and set up some attributes. In this example, our attributes will be demographic data, such as age, education, income, and marital status. We also have some training data that will be used by the decision tree to make decisions:

require 'rubygems'
require 'decisiontree'

attributes = [&apos...