ASKING A LIBRARIAN There is an interesting post and discussion at Statistical Modeling, Causal Inference, and Social Science about whether the Library of Congress stacks were ever open to the public. Andrew has detailed memories of roaming the stacks, including information on how they were configured (“like spokes on a wheel”), which if correct would […]
LEARN VI AND VIM BY WATCHING AND TYPING ALONG For this week, Decision Science News has created a vi and vim video tutorial. (The tutorial is best viewed in your browser’s full-screen mode, try pressing F11 in Windows). Vim is a free and open source editor. DSN highly recommends vim. This tutorial is for absolute […]
GET A FEELING FOR ACCIDENTAL SIGNIFICANCE Click through to site to try We were exploring Jerry Dallal’s site and came across this cute gizmo linked to as “a valuable lesson”. Clicking the button simulates running 20 significance tests, each of which has a 5% chance of coming up significant when no effect is present. Underneath […]
THE CENTER OF THE CIRCLE HEURISTIC When a number of crimes, for instance burglaries, can be linked to the same offender, police often plot the locations on a map. The art of finding the location of the criminal’s home based on the crime sites is a key objective in what is known as geographical profiling. […]
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