Rectangular subdivisions of the world

Posted to Maps  |  Tags: , ,  |  Nathan Yau

Eric Fischer, who continues his string of mapping fun and doesn’t even do it for his day job, maps the world in binary subdivisions. Each bounding box contains an equal number of geotagged tweets.

The best part is that Fischer is actually doing some problem-solving, trying to figure something out, so it’s not just a pretty picture.

The actual motivation behind it, by the way, was to figure out an approximately optimal set of bounding boxes to query for in APIs like Picasa’s, where if you ask for the whole world, you only get a few, very recent, results, but if you query for small enough bounding boxes, you can see further back in time. The idea is to choose bounding boxes with equal frequency so you get approximately the same time period of results from each of them.

Here’s the image zoomed in on the United States. As you’d expect, the concentration of boxes looks a lot like population density:

As does the view of Europe:

More maps from Fischer here.

[Binary subdivision of the world via @datapointed]

2 Comments

Favorites

Pizza Place Geography

Most of the major pizza chains are within a 5-mile radius of where I live, so I have my pick, …

Who is Older and Younger than You

Here’s a chart to show you how long you have until you start to feel your age.

Reviving the Statistical Atlas of the United States with New Data

Due to budget cuts, there is no plan for an updated atlas. So I recreated the original 1870 Atlas using today’s publicly available data.

Think Like a Statistician – Without the Math

I call myself a statistician, because, well, I’m a statistics graduate student. However, the most important things I’ve learned are less formal, but have proven extremely useful when working/playing with data.