ggplot2

ggplot2 is a system for declaratively creating graphics, based on The Grammar of Graphics. You provide the data, tell ggplot2 how to map variables to aesthetics, what graphical primitives to use, and it takes care of the details. It’s hard to succinctly describe how ggplot2 works because it embodies a deep philosophy of visualisation. However, in most cases you start with ggplot() , supply a dataset and aesthetic mapping (with aes() ). You then add on layers (like geom point() or geom histogram() ), scales (like scale colour brewer() ), faceting specifications (like facet wrap() ) and coordinate systems (like coord flip() ). If you are new to ggplot2 you are better off starting with a systematic introduction, rather than trying to learn from reading individual documentation pages. Currently, there are several good places to start: 5. If you’ve mastered the basics and want to learn more, read ggplot2: Elegant Graphics for Data Analysis. It describes the theoretical underpinnings of ggplot2 and shows you how all the pieces fit together. This book helps you understand the theory that underpins ggplot2, and will help you create new types of graphics specifically tailored to your needs. 6. For articles about announcements and deep-dives you can visit the tidyverse blog. 1. The Posit Community (formerly RStudio Community) is a friendly place to ask any questions about ggplot2.