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.