Returns the median of the set of values defined as the absolute value of the difference between each value and the median of all values in each group.
MAD is a single-threaded function.
To invoke this function, use the GROUP BY TIME clause. For more information, see GROUP BY TIME Clause.
This function returns the REAL data type.
Nulls are not included in the result computation.
The formula for computing MAD:
If the constant_multiplier is not provided, it uses 1.4826 as the default.
MAD is valid only for numeric data.