Categories ▸ Visualization
While making the maps for yesterday’s post about the extent of US federal landownership, I noticed an odd checker-pattern in one part of it. It flowed through northern Nevada and Utah, and then out a ways into southern Wyoming. I did enough work to make sure it wasn’t a coding error on my part, but didn’t pursue it any further. This morning, JP Lien asked me about it on Twitter, and we both took a closer look.
The current occupation of a federal wildlife refuge building in rural Oregon prompted me to make a map of the land owned or administered by the US government. There are a few such maps floating around, but I wanted to see if I could draw one in R. The US Geological Survey makes a shapefile available containing the boundaries of federal lands, so I grabbed that and simplified the category codings a bit, to make the main classes of land a bit more tractable.
A few weeks ago the Irish Times ran an extensive supplement on secondary student transition to higher education in Ireland. They were interested mostly in a league-table exercise to identify the “best” schools in the country, but in the process they compiled some pretty good data on “feeder schools” together with some decent discussion of the broader trends associated with the move from secondary school to third-level education. They also made their full table of data available as an Excel spreadsheet.
Marissa Mayer’s performance as CEO of Yahoo has been criticized by various people. Yesterday, Eric Jackson, an investment fund manager, sent a 99-slide presentation to Yahoo’s board outlining his best case against Mayer. Paging through the presentation/hatchet-job gives some insight into what passes for analysis in the world of corporate investment and finance. I’m not too interested in the details. From a design and communication point of view, though, the slides are generally terrible.
Having recently revisited plots of some international comparative data on assault death rates in the OECD, here’s a quick update to the state- and region-level plots for assault deaths within the United States. CDC Wonder data now goes up to 2013, so if we query that for adjusted death rates due to assault (based on ICD-10 codes X85-Y09 and Y87.1) we can make some new plots. Here’s a boxplot of the yearly trends across states, with some high-rate outliers marked.
Another week, another mass shooting in the United States. I’ve linked before to my posts America is a Violent Country, and Assault Deaths Within the United States. I thought I would update the figures with the latest data from the OECD. The method and scope are the same as before. Here is the main figure, showing assault death rates for the US and 23 other OECD countries.
Assault Death rates in the US and other OECD countries, 1960-2013.
The other day, Jonathan Marshall posted a nice graphic showing population age profiles of electoral constituencies in New Zealand, ordered by their tendency to vote left or right. He put the data on github, and on a long transatlantic flight yesterday I ended up messing around with it a bit.
Almost the only bit of Demography I know is the old saw that women get sicker but men die quicker. So I thought I’d take a look at differences in the sex composition of age cohorts by constituency.
In an effort to not lose all of my lucrative Consulting Thinkfluanalyst income to the snowman, I redrew my LOESS and LTS decompositions of Apple’s quarterly sales data by product. They now extend to Q2 2015. First, here’s a plot of the trends showing the individual sales figures with a LOESS smoother fitted to them.
Figure 1. Quarterly sales data for Apple Macs, iPhones, and iPads.
Here’s the Mac by itself, which continues to grow healthily (unlike the rest of the PC industry), just on a smaller scale than other Apple products.
The other day at Daily Nous, Justin asked about so-called “Sleeping Beauty” papers in Philosophy:
“Sleeping Beauty” papers “lie dormant for years before experiencing a sudden spike in citations as they are discovered and recognized as important.” A recent article in Nature discussed scientific papers that have slumbered for decades … Are there sleeping beauty papers in philosophy? (I mean, of course, besides that paper of yours from a few years back that no one has cited…yet.
Choropleth maps of the United States are everywhere these days, showing various distributions geographically. They’re visually appealing and can be very effective, but then again not always. They’re vulnerable to a few problems. In the U.S. case, the fact that states and counties vary widely in size and population means that they can be a bit misleading. And they make it easy to present a geographical distribution to insinuate an explanation.
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