5. Presentation Graphics

Graphics, including base R graphics and ggplot graphics, are used throughout this book. This chapter provides a survey of different graphical methods with a focus on designing attractive and informative plots. Various types of plots appear in the examples including time series plots, bubble plots, Cleveland dotplots, histograms with a reference density overlay, heat maps, and scatter plots with a fitted smooth curve. Multipanel displays and other methods for displaying multiple plots are described. Methods are given for exporting graphs from R graphics or ggplot graphics to one or more files in various formats. Additional plots and options to customize their appearance are discussed with hints in the Exercises.