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

Building an RShiny application


Our RShiny application will have the following features,

  • Load the RLdata500 from the RecordLinkage package and display to the user
  • Implement the weights algorithm and display the weight range as a histogram
  • Allow the user to select the lower and upper thresholds of weights for classification
  • Based on the user-selected threshold, do a record matching and display the duplicate entities discovered.

Let us see the code for the user interface:

ui <- fluidPage(
  navbarPage("Record Linkage",
    tabPanel("Load"
     , dataTableOutput("records")
    ),
    tabPanel("Weights Method"
     ,plotOutput("weightplot")
     ,sliderInput("lowerthreshold", "Weight Lower threshold:",
        min = 0.0, max = 1.0,
        value =0.2)
     ,sliderInput("upperthreshold", "Weight Upper threshold:",
        min = 0.0, max = 1.0,
        value =0.5)

     ,dataTableOutput("weights")
     )
  )
)

There are two panels, one to show the RLdata500 and an other one to show the results of the...