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Date: Fri, 27 Jun 2014 13:24:24 +0000 (UTC)
From: "Sergei Lebedev (JIRA)" <jira@apache.org>
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Subject: [jira] [Created] (MATH-1133) NaNStrategy for UnivariateStatistic
 and friends
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Sergei Lebedev created MATH-1133:
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             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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