Learning to Data
Tutorials, Books, and Guides
Whether you use circles as visual encodings or as a way to highlight areas of a plot, there are functions at your disposal.
R makes it easy to add squares and rectangles to your plots, but it gets a little tricky when you have a bunch to draw at once. The key is to break it down to the elements.
deldir package by Rolf Turner makes the calculations and plotting straightforward, with a few lines of code.
Make sure you explain your visual encodings so that others can interpret them.
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.
Guides and Tips
Your standard choropleth map shows geographic areas colored by a single variable. You’re reading this, so you’ve seen them before. …
Naked Statistics by Charles Wheelan promises a fun, non-boring introduction to statistics that doesn’t leave you drifting off into space, …
If you take away anything from The Visual Display of Quantitative Information, make it the epilogue. This is the most …