Standard_Deviation ( Field ; MaxLoopCount ; StartIndex ; StdDeviation ; ArithMeanValue )
Calculate the standard deviation of a set of numbers.
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Function definition: (Copy & paste into FileMaker's Edit Custom Function window)
Calculates the standard deviation of a set of numbers, by recursively calling this function for each row in a Found Set.
Use the Arithmetic_Mean function to calculate the ArithMeanValue.
Aug 28, 2010
|How is this and the Arithmetic_Mean function preferable to using a summary field defined as Standard Deviation or Average - or the corresponding Stdev() and Average() aggregate functions?|
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