Median Absolute Deviation (MAD) | Teradata Vantage - 17.10 - Median Absolute Deviation (MAD) - Advanced SQL Engine - Teradata Database

Teradata Vantageā„¢ - Time Series Tables and Operations

Product
Advanced SQL Engine
Teradata Database
Release Number
17.10
Release Date
July 2021
Content Type
Programming Reference
Publication ID
B035-1208-171K
Language
English (United States)

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.