1.0 - 8.00 - FFT Input - Teradata Vantage

Teradata® Vantage Machine Learning Engine Analytic Function Reference

Product
Teradata Vantage
Release Number
1.0
8.00
Release Date
May 2019
Content Type
Programming Reference
Publication ID
B700-4003-098K
Language
English (United States)

InputTable Schema

Column Data Type Description
id_column Any Time series identifier.
time_column NUMERIC Time axis of data.
value_column NUMERIC [Column appears 1-16 times.] Signal value on which to perform FFT.

A 2-dimensional signal of length n is represented as a matrix of sqrt(n) rows and columns, stored in column-major order. (See FFT Example 2: 2D Signal.)

A 3-dimensional signal of length n is represented as a matrix of 2 matrixes of sqrt(n) rows and columns, stored in column-major order. (See FFT Example 3: 3D Signal.)