Book Image

R Data Visualization Recipes

By : Vitor Bianchi Lanzetta
Book Image

R Data Visualization Recipes

By: Vitor Bianchi Lanzetta

Overview of this book

R is an open source language for data analysis and graphics that allows users to load various packages for effective and better data interpretation. Its popularity has soared in recent years because of its powerful capabilities when it comes to turning different kinds of data into intuitive visualization solutions. This book is an update to our earlier R data visualization cookbook with 100 percent fresh content and covering all the cutting edge R data visualization tools. This book is packed with practical recipes, designed to provide you with all the guidance needed to get to grips with data visualization using R. It starts off with the basics of ggplot2, ggvis, and plotly visualization packages, along with an introduction to creating maps and customizing them, before progressively taking you through various ggplot2 extensions, such as ggforce, ggrepel, and gganimate. Using real-world datasets, you will analyze and visualize your data as histograms, bar graphs, and scatterplots, and customize your plots with various themes and coloring options. The book also covers advanced visualization aspects such as creating interactive dashboards using Shiny By the end of the book, you will be equipped with key techniques to create impressive data visualizations with professional efficiency and precision.
Table of Contents (19 chapters)
Title Page
Credits
About the Author
About the Reviewer
www.PacktPub.com
Customer Feedback
Preface

Creating basic shiny interactive plots


The previous recipe taught you how to install and load shiny, as well the basics of crafting and running a shiny app. This one introduces how to draw a basic interactive shiny plot (it's actually a shiny web app though). To do that, we shall demonstrate how to manipulate input and output while also taking advantage of plotly's interactivity.

Getting ready

Besides shiny, we also need three more packages, as follows:

> if(!require(plotly)){install.packages('plotly')}
> if(!require(Ecdat)){install.packages('Ecdat')}
> if(!require(dplyr)){install.packages('dplyr')}

The plotly package will be used to draw the plots, Ecdat will land the data, and dplyr will manipulate it. The data frame to be used is called USGDPpresidents and displays information about the Real Gross Domestic Product (real GDP) inflation index, presidents, wars, and more.

How to do it...

The main thing to pay attention to here is the general way that input is designated and used to construct...