Category: data visualization

Last week, Antonio S. Chinchón made an interesting post showing how to create a traveling salesman portrait in R. Essentially, the idea is to sample a bunch of dark pixels in an image, solve the well-known traveling salesman problem for …

Traveling salesman portrait in Python Read More »

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As I discussed in my last post, certain industries in the U.S. draw a younger (or older) demographic than others. There are a variety of reasons that younger people are more likely to work in a shoe store than a …

How Americans make a living based on their age Read More »

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Ever wondered what industries employ the youngest and oldest people? Wonder no more. To create the visualization below, I pulled the employment data from the U.S. Bureau of Labor Statistics web site to rank all of the industries by the …

Top 10 oldest and youngest industries in the U.S. Read More »

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Back in 2014, the U.S. Department of Transportation released a report on the (normalized) number of traffic deaths in each U.S. state. As I looked through the list, I noticed an odd correlation between the political leanings of a state …

Republican-leaning states tend to have more traffic deaths Read More »

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The Python 2 vs. Python 3 divide has long been a thorn in the Python community’s side. On one hand, Python package developers face the challenge of supporting two incompatible versions of Python, which is time that could be better …

Python 2.7 still reigns supreme in pip installs Read More »

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In August 2016, the National Park Service celebrates their 100th year of managing the United States’ system of beautiful national parks. So what’s a better way to celebrate 100 years of stewardship than to visit all of the national parks …

The Optimal U.S. National Parks Centennial Road Trip Read More »

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About a year ago, I wrote an article introducing the concept of optimizing road trips using a combination of genetic algorithms and Google Maps. During that time, I’ve given some thought to how I could make that algorithm more useful …

Computing optimal road trips on a limited budget Read More »

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A couple weeks ago, I ran across a research paper that inadvertently answered one of those awkward questions that so few people get the chance to talk about: How long does the average man last in bed? I was particularly …

How long does the average man last in bed? Read More »

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In a surprise move this week, Reddit has started rolling out their own in-house image hosting service. This appears to be a direct move to replace the many image hosting services that have sprung up around Reddit—Imgur, in particular. Here’s …

Why is Reddit replacing Imgur? Read More »

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Last week, I was presenting at a conference and discussing the merits of animated visualizations vs. small multiples. On one of my slides, I presented the following chart that shows the total fertility rate (i.e., the average number of children …

Why did so many Japanese families avoid having children in 1966? Read More »

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