4 ms·

Here's Knuth's way to keep a running variance: http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#III._On-line_algorithm http://en.wikipedia.org/w

Here's Knuth's way to keep a running variance: http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#III._On-line_algorithm http://en.wikipedia.org/wiki/Algorithms_for_calculating_vari...

andreyf 18y ago
Cheater.
- fgimenez 18y ago
  Technically, I didn't give away how to do the standard deviation ;)