SKEWNESS_SAMP is an aggregate function that is primarily used to determine symmetry in a given distribution.
NULL values in
expr are ignored.
Returns NULL if all rows in the group have NULL
Returns 0 if there are one or two rows in
For a given set of values, the result of population skewness (
SKEWNESS_POP) and sample skewness (
SKEWNESS_SAMP) are always deterministic. However, the values of
SKEWNESS_SAMP differ. As the number of values in the data set increases, the difference between the computed values of