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From "Sergei Lebedev (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MATH-1133) NaNStrategy for UnivariateStatistic and friends
Date Fri, 27 Jun 2014 13:24:24 GMT
Sergei Lebedev created MATH-1133:
------------------------------------

             Summary: NaNStrategy for UnivariateStatistic and friends
                 Key: MATH-1133
                 URL: https://issues.apache.org/jira/browse/MATH-1133
             Project: Commons Math
          Issue Type: Improvement
            Reporter: Sergei Lebedev
            Priority: Minor


In the current implementation univariate statistics don't allow to specify NaN behaviour.
For instance, the following code simply yields NaN as the result.

{code:java}
Mean mean = new Mean();
mean.increment(42);
mean.increment(Double.NaN);
System.out.println(mean.getResult());  // prints 'NaN'.
{code}

Is it possible to parametrize all available statistics by NaNStrategy with the default behaviour
being a no-op?



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