Editing O.J. Simpson: Charting Changes to His Wikipedia Page

By Matt Stiles | | Topics: Crime, Sports

I’ve just finished watching ESPN’s fabulous O.J.: Made in America, a five-part documentary about the Hall of Fame football player.

Somewhere in the process of digesting this latest — and, perhaps, best — telling of O.J.’s story, I scoured Wikipedia for details about his life. I discovered that the page has been edited more than 4,000 times since it went up in 2003, back when Wikipedia user “Vera Cruz” posted the first biographical snippet.

Since then, users have slowly edited — and vandalized — the current bio’s 5,000 words, a process I’ve charted below.

Let’s Tess(t)ellate: The Electoral College in Tile Grid Maps, 1980-2012

By Matt Stiles | | Topics: Policy & Politics

I recently added some new charting tools here thanks to NPR’s excellent daily graphics rig, which we used recently to compare air quality in Seoul with other large cities.

There’s still plenty of tinkering to be done here with the rig, especially with deployment to WordPress. But as a first public test, I made several tile grid maps to show Electoral College results in presidential elections since 1980. The “maps” use a tessellated grid of hexagons, rather than actual geographic shapes, to show Republican red and Democratic blue.

Tracking Worldwide HIV Infections

By Matt Stiles | | Topics: Demographics

This week Washington is hosting the International AIDS Conference, and one of my colleagues crafted this interactive to show how HIV infection rates differ by country and region.

According to STDAware, the red lines below show the percentage of the adult population infected with the disease in Middle, Eastern and Southern Africa, regions in which about eight percent of the population is infected. In some countries, though, the rate is higher than 20 percent:

Mapping ‘Poisoned Places’

By Matt Stiles | | Topics: Uncategorized

NPR and the Center for Public Integrity have teamed up for a series of this stories this week about facilities that emit toxic chemicals. One part of the package is this interactive map, which plots more than 13,000 regulated facilities across the country — and also colors the dots based on the potential risk to people living around them: 

See a larger interactive version of the map, which was created with Development Seed’s TileMill application and hosted on its MapBox service. 

Mapping Oil/Gas Drilling in PA

By Matt Stiles | | Topics: Uncategorized

Scott Detrow and I mapped drilling for NPR’s StateImpactPA site:

First, while 32 counties host gas wells, the bulk of activity is still taking place in a handful of drilling-heavy counties. More than 60 percent of the 739 wells drilled between January and June were located in the five busiest counties — Bradford, Tioga, Washington, Susquehanna, and Greene. Bradford and Tioga Counties alone are responsible for nearly 40 percent of 2011 drilling activity. Here’s a proportional symbols map of wells drilled: