TD_IDFFT2 Output - Teradata VantageCloud Lake

Lake - Analyze Your Data with ClearScape Analytics™

Deployment
VantageCloud
Edition
Lake
Product
Teradata VantageCloud Lake
Release Number
Published
February 2025
ft:locale
en-US
ft:lastEdition
2026-02-20
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tcl1683670667798.ditamap
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pny1626732985837.ditaval
dita:id
tcl1683670667798

This function returns a primary result set. No other auxiliary layer is returned by this function. This function returns a complex number. If the input was a univariate series, then COMPLEX is returned. If the input was multivariate, then MULTIVAR_COMPLEX is returned.

In the following table, dominant_payload_name depends on its input source payload content type. If the input source payload content is COMPLEX or MULTIVAR_COMPLEX then this is the payload name associated the complex components in rectangular form. If input source payload content is AMPL_PHASE or MULTIVAR_AMPL_PHASE then this is the payload name associated with the complex component in polar form.

RETURNS TABLE Schema

Name Data Type Description
derived-matrix-identifier Varies The resultant series identifier inherited from the MATRIX_ID.
ROW_I INTEGER Index of row axis.
COLUMN_I INTEGER Index of column axis.
REAL_dominant_payload_name REAL Real part of complex Fourier coefficient.
IMAG_dominant_payload_name REAL Imaginary part of complex Fourier coefficient.