Drawing Circles and Ellipses in R
Whether you use circles as visual encodings or as a way to highlight areas of a plot, there are functions at your disposal.
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How to Make Square Pie Charts in R
Instead of traditional pie charts that rely on angles and arc lengths to show parts of a whole, try this easier-to-read version.
How to Make an Interactive Bar Chart With a Slider
Provide a slider for the standard bar chart so that users can shift focus to a point of interest.
The Baseline and Working with Time Series in R
A big part of statistics is comparisons, and perhaps more importantly, to figure out what to compare things to. Perspective changes with the baseline.