1.1 - 8.10 - Sampling Input - Teradata Vantage

Teradata Vantage™ - Machine Learning Engine Analytic Function Reference

Product
Teradata Vantage
Release Number
1.1
8.10
Release Date
October 2019
Content Type
Programming Reference
Publication ID
B700-4003-079K
Language
English (United States)

InputTable Schema

This table is always required.

Column Data Type Description
input_column Any Data to sample.
stratum_column Any [Column appears only when this is the only input table and you specify the StratumColumn syntax element.] Sampling conditions.

SummaryTable Schema

This table is required for approximate sample sizes, disallowed otherwise.

Column Data Type Description
input_column Any Data to sample.
stratum_column Any Sampling conditions.

To approximate the target sample fractions well, SummaryTable must summarize the population statistics faithfully. That is, sum / stratum_count with a non-null stratum value must equal the total population size.