Skewness

Math functions 
SYNTAX  Skewness( ARRAY, range, population = True ) 
RETURNS  ARRAY 
FUNCTION  The function calculates Skewness Skewness( ARRAY, range, False )  works the same as Excel's SKEW function Skewness( ARRAY, range, True )  works the same as Excel's SKEW.P function The Skewness of a data set is a measurement of the asymmetry of the distribution about the mean. A Skewness of zero indicates perfect symmetry: A positive Skewness indicates that more values lie below the mean and the distribution has a 'tail' which extends towards the higher values; A negative Skewness indicates that more values lie above the mean and the distribution has a 'tail' which extends towards the lower values. 
EXAMPLE  
SEE ALSO  Kurtosis() function , StDev() function 
The Skewness function is used in the following formulas in AFL online library:
See updated/extended version online.