Spread.NET 17 Formula Reference
Formula Functions / Functions R to S / STDEVA
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    This function returns the standard deviation for a set of numbers, text, or logical values.




    Each argument can be a cell, a cell range, a float value, an integer value, text, or a logical value. There can be up to 255 arguments. TRUE evaluates to 1 and FALSE or text evaluates to 0.


    The standard deviation is a measure of how widely values are dispersed from the average value.

    The standard deviation is calculated using the "non-biased" or "n–1" method.

    The equation for calculating the standard deviation is the same as for STDEV:

    STDEVA Equation

    where x is the value and n is the number of values

    This function assumes that its arguments are a sample of the population.

    This function differs from STDEV because it accepts text or logical values as well as numeric values.

    Data Types

    Accepts numeric, text, and logical data for all arguments. Returns numeric data.





    STDEVA(95,89,73,87,85,76,100,96,96) gives the result 9.3422576382

    Version Available

    This function is available in product version 2.0 or later.

    See Also

    AVEDEV | AVERAGE | STDEV | STDEVPA | Statistical Functions