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

Use case and data


We have four artificial sensors installed in the field and our digital control system collects the information from these sensors. We need to put a real-time analysis system in place. We need a  feature in that system to cluster the incoming data and display those clusters in real time in a digital dashboard. The idea is users watching those dashboards will be alerted immediately for some anomaly or malfunction if they see unusual cluster patterns.

This example is inspired by the sensor network example given in pubnub at: https://www.pubnub.com/developers/realtime-data-streams/sensor-network/.

The following diagram should sufficiently visualize our use case:

What we have here is a lambda architecture (http://lambda-architecture.net/).

Our digital control system is generating data at a particular rate. It has the following sensors installed:

  • Radiation sensor (millrads/hour)--the range of data is between 195 and 202
  • Humidity (%)--the range of data is between 74 and 82
  • Temperature...