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Posted to dev@lucene.apache.org by "Joel Bernstein (JIRA)" <ji...@apache.org> on 2017/05/22 18:27:04 UTC

[jira] [Created] (SOLR-10724) Add describe Stream Evaluator

Joel Bernstein created SOLR-10724:
-------------------------------------

             Summary: Add describe Stream Evaluator
                 Key: SOLR-10724
                 URL: https://issues.apache.org/jira/browse/SOLR-10724
             Project: Solr
          Issue Type: New Feature
      Security Level: Public (Default Security Level. Issues are Public)
            Reporter: Joel Bernstein


The *describe* Stream Evaluator provides descriptive statistics for an array of numbers. describe returns a single tuple with the following stats:

geometricMean
kurtosis
max
min
mean
N
populationVariance
quadraticMean
skewness
standardDeviation
sum
sumsq
variance

{code}
c = describe(colA)
{code}



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