Book Image

R Data Analysis Projects

Book Image

R Data Analysis Projects

Overview of this book

R offers a large variety of packages and libraries for fast and accurate data analysis and visualization. As a result, it’s one of the most popularly used languages by data scientists and analysts, or anyone who wants to perform data analysis. This book will demonstrate how you can put to use your existing knowledge of data analysis in R to build highly efficient, end-to-end data analysis pipelines without any hassle. You’ll start by building a content-based recommendation system, followed by building a project on sentiment analysis with tweets. You’ll implement time-series modeling for anomaly detection, and understand cluster analysis of streaming data. You’ll work through projects on performing efficient market data research, building recommendation systems, and analyzing networks accurately, all provided with easy to follow codes. With the help of these real-world projects, you’ll get a better understanding of the challenges faced when building data analysis pipelines, and see how you can overcome them without compromising on the efficiency or accuracy of your systems. The book covers some popularly used R packages such as dplyr, ggplot2, RShiny, and others, and includes tips on using them effectively. By the end of this book, you’ll have a better understanding of data analysis with R, and be able to put your knowledge to practical use without any hassle.
Table of Contents (15 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Summary


The chapter started with an overview of data at motion and data at rest, also called as the streaming data. We further dwelled into the properties of streaming data and the challenges it poses while processing it. We introduced the stream clustering algorithm. The famous offline/online approach to stream clustering was discussed. Later on, we introduced various classes in stream package and how to use them. During that process, we discussed ideas about several data generators, DBSTREAM algorithms to find micro and macro clusters and several metrics to assess the quality of clusters. We then introduced our use case. We went ahead to design a clustering algorithm, with the online part based on reservoir sampling and the offline part was handled by k-means algorithm. Finally, we described the steps needed to take this whole setup in a real streaming environment.

In the next chapter, we will explore graph mining algorithms. We will show you how to use the package igraph to create and...