TD_POWERSPEC

The Power Spectrum function is another function which converts a series from the time or spatial domain over to the frequency domain in order to facilitate Frequency Domain Analysis. Once in the frequency domain, it makes it easier for the data scientist to identify periodicities that are inherent in the series, thereby enabling the data scientist to then eliminate them from the series.

Input ports

1. Type: DB Session
   Teradata Connection
   Connection to a Teradata Database Instance
2. Type: Table
   Input
   At its core, this function takes a logical-runtime series as an input and transforms the series from the time or spatial domain to the temporal frequency or spatial frequency domain, respectively. Like TD_LINESPEC, the input series can contain either real or complex numbers as array elements, aka, PAYLOAD(CONTENT(REAL/MULTIVAR_REAL/COMPLEX/MULTIVAR_COMPLEX)).

Output ports

1. Type: Table
   output of TD_POWERSPEC
   output of TD_POWERSPEC