How to Make Baseline Charts in R
By shifting the baseline to a reference point, you can focus a line chart on relative change, which can improve the visibility of smaller categories.
The baseline chart is a specific type of line chart that shows percentage changes over time. With that in mind, if you know how to make a line chart, then you know how to make a baseline chart.
The key is what comes before the actual chart-making. If you have absolute counts, you have to calculate relative change, which can be done in various ways depending on what you want to show and what you’re interested in.
To access this full tutorial and download the source code you must be a member. (If you are already a member, log in here.)
Get instant access to this tutorial and over a hundred more, plus courses, guides, and additional resources.
You'll get unlimited access to hundreds of hours worth of step-by-step visualization courses and tutorials for insight and presentation — all while supporting an independent site. Source code and data is included so that you can more easily apply what you learn in your own work.
The tutorials are very helpful to move from "Oooo, cool!" to how to actually DO the cool.
Members also recieve a weekly newsletter, The Process. Keep up-to-date on visualization tools, the rules, and the guidelines and how they all work together in practice.
See samples of everything you gain access to:
More Tutorials See All →
Transitioning Map, Part 2: Refining the Format and Layout
How to make a more readable and more visually accurate map, before you dive into the big transitions.
How to Make an Interactive Stacked Area Chart
Stacked area charts let you see categorical data over time. Interaction allows you to focus on specific categories without losing sight of the big picture.
How to Hand Edit R Plots in Inkscape
You can control graph elements with code as you output things from R, but sometimes it is easier to do it manually. Inkscape, an Open Source alternative to Adobe Illustrator, might be what you are looking for.