Details

    • Type: Bug
    • Status: Closed
    • Priority: Major
    • Resolution: Fixed
    • Affects Version/s: None
    • Fix Version/s: ODF 1.2 Part 2 CD 1
    • Component/s: OpenFormula
    • Labels:
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    • Proposal:
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      Deleted until re-written.

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      Deleted until re-written.
    • Resolution:
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      All "be wary" phrases deleted.

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      All "be wary" phrases deleted.

      Description

      Text under Semantics reads:

      "Implementations should be wary of actually calculating PEARSON this way, due to numerical instability issues."

      "...be wary..."? Perhaps a note, if it says what those "issues" may be.

      BTW, in researching this function I found: http://www.statemaster.com/encyclopedia/Correlational-research

      It may just be a presentation issue but does the square root on the denominator extend across both of the summation signs?

      Oh, the resource I cite above alleges a better way to calculate this function with numeric stability.

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            • Assignee:
              aguelzow Andreas Guelzow
              Reporter:
              Patrick Patrick Durusau
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              • Created:
                Updated:
                Resolved: