Median Absolute Deviation (MAD) | Teradata Vantage - 17.00 - Median Absolute Deviation (MAD) - Teradata Database

Teradata Vantageā„¢ - Time Series Tables and Operations

prodname
Advanced SQL Engine
Teradata Database
vrm_release
17.00
created_date
June 2020
category
Programming Reference
featnum
B035-1208-170K

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.

Return Value

This function returns the REAL data type.

Nulls are not included in the result computation.

Usage Notes

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.