id,summary,reporter,owner,description,type,status,milestone,component,version,severity,resolution,keywords,cc
6128,rolling_variance addition,Pieter Ober <jaapaap@…>,Eric Niebler,"LS,

I have just finished writing an implementation and test of a 
rolling_variance which I would be happy to contribute to the framework.

It includes a redone version of rolling_mean which avoids potential overflow and accuracy issues. The rolling_variance currently returns zero when there are less than 2 samples available.

I'd be happy to do assist to make this fit the accumulator framework better and I include a first draft of the code. Nothing spectacular, but I have not seen the 'rolling' version being published anywhere in the exact form needed, making this non-trivial to implement anyway.

- Pieter",Bugs,new,To Be Determined,accumulator,Boost 1.47.0,Not Applicable,,,