LibreOffice Calc: Data -> Calculate -> Recalculate Hard (Ctrl+Shift+F9)

This is a note for Future John. In LibreOffice Calc you can run Data -> Calculate -> Recalculate Hard to force a recalculation of your worksheet. I needed to do this so that changes to my macros got picked up. The shortcut key is Ctrl+Shift+F9. There is also F9 but I can’t use that shortcut key because I have it bound to something else.

ORBTrace mini and instrumenting embedded applications

Today I learned about the ORBTrace mini. Gotta get me a few of those! There’s a video explaining the related software, Orbuculum, over here (but it requires you signup for a free account and validate your email address to watch).

Statistician Answers Stats Questions From Twitter | Tech Support | WIRED

This was a good overview of what’s possible with statistics: Statistician Answers Stats Questions From Twitter | Tech Support | WIRED.

But I’m pretty sure that at t=11:23 he gets it wrong. The probability that three people in a family have the same birthday isn’t 1 * 1/365 * 1/365. but rather it depends on the number of people in the family (starting, I guess, at some epoch). This is known as the Birthday paradox.

To be clear: they’re not asking what is the probability of three people being born on January 10. They asked what are the odds of three people from an unspecified family size being born on the same day (could be any day of the year).