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  1. Spark
  2. SPARK-10384 Univariate statistics as UDAFs
  3. SPARK-10641

skewness and kurtosis support

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Details

    • Sub-task
    • Status: Resolved
    • Major
    • Resolution: Fixed
    • None
    • 1.6.0
    • ML, SQL
    • None

    Description

      Implementing skewness and kurtosis support based on following algorithm:
      https://en.wikipedia.org/wiki/Algorithms_for_calculating_variance#Higher-order_statistics

      Attachments

        1. simpler-moments.pdf
          182 kB
          Xiangrui Meng

        Issue Links

          contains

          Sub-task - The sub-task of the issue SPARK-10602 Univariate statistics as UDAFs: single-pass continuous stats

          • Major - Major loss of function.
          • Closed
          Is contained by

          Sub-task - The sub-task of the issue SPARK-10602 Univariate statistics as UDAFs: single-pass continuous stats

          • Major - Major loss of function.
          • Closed
          links to

          Pull request #9003 [Github] Pull Request #9003 (sethah)

          Activity

            People

              sethah Seth Hendrickson
              jihongma Jihong Ma
              Xiangrui Meng Xiangrui Meng
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              Dates

                Created:
                Updated:
                Resolved: