statistical graphics
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Data to Viz
For data analysts using R, this is huge. Find out how to generate the graph you need for the data you have with just a few clicks. Yes, you’ll find some fine print explaining that the site is not comprehensive. BUT, it still has a trove of graph types and accompanying R and python code Read more
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Gee Whiz, GraphViz!
Sometimes you need to draw a simple network diagram, like this Hasse diagram but you don’t have a good graph drawing tool. Get Graphviz! Easy to learn, scriptable, and FREE. Read more
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Our National Blind Spot
Want to save the planet? How about starting by saving the birds. Here’s a Pareto graph that gives a strong hint of where to start: That’s right, get the cat population under control. Eradicate feral cat colonies, and euthanize cat collections (oh, and institutionalize obsessive cat ladies). The whole country needs to grow up and Read more
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R Tutorial: Correlation
Fisher’s iris dataset is the basis for this extended example in the calculation and visualization of correlations. The ggpairs() function gives an impressive coded scatterplot matrix. And an old friend makes a last-minute cameo appearance. Update: Dirk Eddelbuettel just released tint 0.0.3 (tint is not Tufte) with some nifty examples. I wanted to try it Read more
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Simpson’s Paradox, revisited
Check out this cool new webpage explaining Simpson’s Paradox. Tip from Flowing Data. Read more
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More Tricks
When I first read about the Juice Labs Chart Chooser, I was decidedly underwhelmed. After a second look, I’m impressed–these guys have some clever tricks, and they’re yours for the downloading. Heck, it’s just fun to resize the browser window on this thing–they’ve done some HTML5 wizardry that’s quite clever. Tip from Flowing Data. Read more
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Love the message, hate the graphic
Meg McLain tells a great story about the relative risk of being killed by terrorists in the US. Unfortunately, she comes up with this baffling graphic which appears to use the sort of number scales beloved of President Obama’s budget speechwriters: Sure, there’s a scale problem, when the multipliers range from 6 to 17,600, but Read more
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Bump charts get renamed as SLOPEGRAPHS
Charlie Park has a nice post describing Tufte’s slopegraphs (old chart, new name). Kaiser Fung likes these a lot; he’s been calling them Bump charts. I introduce these to my undergrads when we discuss the paired t test. Tip from kottke.org. Update (16 July). James Kierstead publishes an R implementation. Read more
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Citation Networks, visualized
Check out this great visualization of the citation linkages in the sciences. Tip from R-Bloggers. Read more
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Where the melting happened in the Melting Pot
The NY Times does total information overload about immigrant communities in the US–a fabulous display of a very dense data set. Tip from Jonah Goldberg at The Corner. Read more
The Random Texan 