Post #2299178

Sometimes all it takes to make some progress is to collect some very basic statistics like mean and variance. Had to do that "online" today and used a bunch of vintage 1962 technology to make it work. I can't even imagine how often Welford's algorithm must have been reinvented badly over the years. If you're not familiar with it ... take a look! https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Welford's_online_algorithm