[jira] [Created] (MATH-1546) Ability to decrement values from Mean, Variance and related metrics

[Gili (Jira)]

Gili created MATH-1546:
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             Summary: Ability to decrement values from Mean, Variance and 
related metrics
                 Key: MATH-1546
                 URL: https://issues.apache.org/jira/browse/MATH-1546
             Project: Commons Math
          Issue Type: Improvement
            Reporter: Gili


Use-case: when calculating a running Mean, Variance users may change 
previously-selected values from X to Y. I expect to be able to decrement(X) 
then increment(Y).



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