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 an histogram with custom colors and bins width


This recipe meant to introduce and explain several useful arguments available at geom_histogram(). To spice things up, a problem context based on the game of chances is adopted. It is an optimal scenario to explain how histogram features can work both to display Monte Carlo simulations and aid hypothesis decisions. Once this context is explained, extrapolating it to challenges of your own won't be difficult.

In order to keep the focus on what matters, let's elaborate a very simple paradigma, design a game, and simulate it over and over again. The game rules can be summarized as following:

  • Initial bet is fixed on $75
  • Player decides before hand the number of rounds he is going through
  • For each round, a fair coin is tossed (fifty-fifty chance for each outcome)
  • Tail means current balance (positive or negative) is increased by 20 percent
  • Head subtracts 17 bucks from the current balance

Our player wants to have visual aid from a histogram. He wants...