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Custom Variance and Covariance Functions

  1. 10-30-2009, 04:38 AM #1
    qwe789123
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    Arrow Custom Variance and Covariance Functions

    Hi

    I was wondering if anyone knew how to write up a custom variance and covariance function in Excel where the mean (µ) in both formulas are replaced by the median.

    Thank you.
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  2. 10-30-2009, 11:12 AM #2
    shg
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    Re: Custom Variance and Covariance Functions

    =SUMPRODUCT( (x - MEDIAN(x) )^2) / (COUNT(x) - 1)

    =SUMPRODUCT( (x - MEDIAN(x)) * (y - MEDIAN(y))) / COUNT(x)
    Last edited by shg; 10-30-2009 at 11:17 AM.
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  3. 10-31-2009, 06:07 AM #3
    qwe789123
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    Re: Custom Variance and Covariance Functions

    Thank you very much.
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