Book Image

R Machine Learning By Example

By : Raghav Bali
Book Image

R Machine Learning By Example

By: Raghav Bali

Overview of this book

Data science and machine learning are some of the top buzzwords in the technical world today. From retail stores to Fortune 500 companies, everyone is working hard to making machine learning give them data-driven insights to grow their business. With powerful data manipulation features, machine learning packages, and an active developer community, R empowers users to build sophisticated machine learning systems to solve real-world data problems. This book takes you on a data-driven journey that starts with the very basics of R and machine learning and gradually builds upon the concepts to work on projects that tackle real-world problems. You’ll begin by getting an understanding of the core concepts and definitions required to appreciate machine learning algorithms and concepts. Building upon the basics, you will then work on three different projects to apply the concepts of machine learning, following current trends and cover major algorithms as well as popular R packages in detail. These projects have been neatly divided into six different chapters covering the worlds of e-commerce, finance, and social-media, which are at the very core of this data-driven revolution. Each of the projects will help you to understand, explore, visualize, and derive insights depending upon the domain and algorithms. Through this book, you will learn to apply the concepts of machine learning to deal with data-related problems and solve them using the powerful yet simple language, R.
Table of Contents (15 chapters)
R Machine Learning By Example
About the Authors
About the Reviewer

Types of analytics

Before we start tackling our next challenge, it will be useful to get an idea of the different types of analytics which broadly encompass the data science domain. We use a variety of data mining and machine learning techniques to solve different data problems. However, depending on the mechanism of the technique and its end result, we can broadly classify analytics into four different types which are explained next:

  • Descriptive analytics: This is what we use when we have some data to analyze. We start with looking at the different attributes of the data, extract meaningful features, and use statistics and visualizations to understand what has already happened. The main aim of descriptive analytics is to get a broad idea of what kind of data we are dealing with and summarize what has happened in the past. Above almost 80% of all analytics in businesses today are descriptive.

  • Diagnostic analytics: This is sometimes clubbed together with descriptive analytics. Here the main...