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Algorithms for the Traveling Salesman Problem visualized

The Traveling Salesman Problem is a popular puzzle that asks for the shortest route between a set of points such …

Music timeline plays through decades of top songs

The Year that Music Died from Polygraph is an animated timeline that shows the Billboard top 5 songs since 1956, …

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Drawing Lines and Segments in R

Show connections and changes over time with start and end points.

Track what your government representatives are doing for you

Taking over an old New York Times project, ProPublica re-launches Represent, which offers an app and an API to see …

School district spending, against national average

Wrapping up their week-long School Money project, NPR asks: Is there a better way to pay For America’s schools? The …

Lower socioeconomic status linked to lower education attainment

The Upshot highlights research from the Stanford Center for Education Policy Analysis that looks into the relationship between a child’s …

Mapping words to parts of the brain

Using functional magnetic resonance imaging, researchers monitored brain activity in seven people while the subjects listened to two hours of …

Change in the British diet, since 1974

From the Open Data Institute, an interactive looking at diet data made available by Department for Environment, Food and Rural …

Global shipping in a narrated interactive map

We’ve seen maps for global shipping routes before, but this project — Ship Map — by Kiln and the UCL …

Using information graphics to calibrate bias

Our daily lives are full of bias. We make assumptions about how the world works, why complex systems do what …

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Working Parents

Here are the mothers and fathers who work like you.

Shifting Parent Work Hours, Mom vs. Dad

Articles about stay-at-home dads and parents with even work loads might make it seem like dads are putting in a lot of hours in the household these days. Are they? How do they compare to moms’ work hours?

Divorce Rates for Different Groups

We know when people usually get married. We know who never marries. Finally, it’s time to look at the other side: divorce and remarriage.

Comparing ggplot2 and R Base Graphics

Figure out which is best with a side-by-side comparison.

Never Been Married

Some people never get married, and some wait longer than others. Let’s look at these people.

What I Use to Visualize Data

“What tool should I learn? ” I hesitate to answer, because I use what works best for me, which isn’t necessarily the best for someone else or the “best” overall. Nevertheless, here’s my toolset.

Tutorials See All →

Drawing Lines and Segments in R

Show connections and changes over time with start and end points.

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.

Drawing Squares and Rectangles in R

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.

Voronoi Diagram and Delaunay Triangulation in R

The deldir package by Rolf Turner makes the calculations and plotting straightforward, with a few lines of code.

Guides See All →

What I Use to Visualize Data

“What tool should I learn? ” I hesitate to answer, because I use what works best for me, which isn’t necessarily the best for someone else or the “best” overall. Nevertheless, here’s my toolset.

Venn Diagrams: Read and Use Them the Right Way

Venn diagrams seem straightforward, but why all the mistakes? Here’s a guide to avoid the snafus.

Bar Chart Baselines Start at Zero

There are visualization rules and there are visualization suggestions. Most are suggestions. The ones that are rules exist because of how our brains process visual information. There’s just no getting around it.

Real Chart Rules to Follow

There are rules—usually for specific chart types meant to be read in a specific way—that you shouldn’t break. When they are, everyone loses. This is that small handful.