Tutorials

Practical how-tos on how to make any chart and apply methods to your own data.

How to Make Frequency Trails in R

Also known as ridgeline plots, the method overlaps time series for a 3-D-ish view of the data. While perhaps not the most visually efficient, the allure is undeniable.

How to Make an Animated Pyramid Chart with D3.js

Compare distributions side-by-side with a pyramid chart. Observe the change over the years by animating it.

How to Make a Tiled Bar Chart with D3.js

Show individual data points by splitting bars into smaller cells.

How to Make Better-Looking, More Readable Charts in R

Defaults are generalized settings to work with many datasets. This is fine for analysis, but data graphics for presentation benefit from context-specific design.

How to Visualize Ranges of Data in R

When you want to focus on the magnitude of differences between low and high values, use visual cues that highlight distance.

How I Made That: National Dot Density Map

Mapping one dot per person, it's all about putting the pieces together.

3-D Printing: How to Prepare the Data in R

Moving your data from the digital screen to something more physical isn't as tricky as it seems. Here's how I did it.

How to Make Chord Diagrams in R

Show connections in the circular layout for a more compact presentation.

How to Make Unit Charts with Icon Images in R

Make the unit chart less abstract with icons that represent the data, or use this in place of a bar chart.