Hello
For the monitoring component I've got a set of values. I'd like to compute
the std. deviation, but as I don't store the full values but only aggregates
(sum, sum of squares) I can't use commonsmath StandardDeviation.
Is there anything in commonsmath for such use case ? I've found at
http://en.wikipedia.org/wiki/Algorithms_for_calculating_variance some
algorithm to compute "an
unbiased<http://en.wikipedia.org/wiki/Estimator_bias> estimate",
but if something stable and tested is available in math I'd prefer not to
reinvent the wheel !
Nicolas
