statistics

Heres a slick new demonstration of the Central Limit Theorem.  (Of course it’s slick–it’s written by Leland Wilkinson, the Grammar of Graphics guy!)  I’m using it for my "poet’s" class. Tip from Andrew Gelman. Read more

Usually missing means missing.  However, here’s an example where the data collection medium introduces missing data.  Stupid.  Do like ubu.roi says. Tip from Pollster.com. Read more

Great graphic summary of the American Time Use Survey from the NYT graphic geeks.  Where’s "surfing the web?" Tip from Flowing Data. Read more

Mark Liberman has an interesting post about digital linguistics over at Language Log.  I recall that Joe Roy wrote an interesting masters’ thesis at UTSA doing some basic statistical linguistics.  Could be a growth area! Read more

Some criticism of the Rasmussen polls has prompted Mark Blumenthal at Pollster.com to write a couple of interesting posts: ‘Huffpollstrology’ and Response Rates explains why response rates alone don’t explain much, and More on Response Rates goes into much more detail. The Rasmussen kerfuffle has prodded Mark to write a series of posts on the Read more

Just got back from JSM2009 in Washington, D.C. (we were newsworthy), where I also attended an R graphics workshop given by Hadley Wickham, Di Cook, and Heike Hofmann.  (Next offering is October in Austin.  Take your laptop.) Wow!  was I behind the curve in using new R packages.  Here are the goodies I picked up: Read more

Someday, I’ll be done with the dissertation and maybe get an opportunity to teach our sampling course.  I’m swiping materials from Andrew Gelman, who was nice enough to post them on his blog. Read more

California Senate hopeful Chuck DeVore has some nice graphs showing how far out of whack California’s welfare budget is.  I like my graph better: Even New York, that pesthole of Yankees, doesn’t do too bad, with a pretty much "fair share" of welfare recipients.  But it looks like the other large states shipped all their Read more

This looks interesting.  I’ll play with it later in the week to see how good it is. Read more

Sometimes, you need to take your time comparing just a few numbers. Tip from James Hudnall. Read more