NYT-style urban heat island maps

One of my favorite strategies for learning more about data visualization is to try to recreate other work. This is especially true for maps! I recently came across a New...

Saint Paul park users love to bike, but not to fish

I’ve been attending Saint Paul Public Library’s data parties to help community members learn more about how to use the open data provided by the city and

Data-driven design in 'Curious City: In, Out, Above, Beyond Saint Paul'

Data-driven design & inspiration I’ve recently become more interested in the artistic side of data visualization and cartography. Data-driven design is also sometimes called information design. In this post...

Designing Map Cutouts with {sf} and {ggplot2}

I wanted to make a nice map as a holiday present for a friend. The idea was that it would be a small circular map of the roads in Tacoma,...

Evaluating our precinct boundary approximation algorithm with v-measure

Introduction and intuition In the last post, I described the algorithm we wrote to approximate precinct boundaries in Ohio. We were pretty happy with how it was performing...