Feature request: Running Stats?

[NAThompson]

Forgive me if this is a dup, but I checked the docs, issues and PRs, but didn't see any documentation on running statistics. Near as I can tell, we need to have an array on hand in order to compute mean and standard deviation, but online algorithms exist so that we can consume samples as they arrive.

Is this an interesting feature for this repo?

[wildart]

Take a look https://github.com/joshday/OnlineStats.jl

[nalimilan]

Closing as OnlineStats is the package to use.