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SKEWNESS fails if StdDev=0

  •  03-07-2010, 5:44 PM

    SKEWNESS fails if StdDev=0

    Hello John,

    New issue: the SKEWNESS command fails if the data array has a StdDev = 0 (eg a constant array), because the formula then divides by zero.

    The formula in the reference source would also fail - it's not a Stats101 coding error; it's an incomplete algorithm. The formulas on Wikipedia are slightly different...but as far as I can tell they would also divide by zero ;-)

    Any Statistics Wizard around with some suggestions?

    Gus
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