This class implements the SQL Standard STDDEV_POP() aggregator, computing a population's standard deviation. It relies on VarPAggregator to compute the population variance and then applies the textbook definition of standard deviation:
√var_pop()
| Modifier and Type | Field and Description |
|---|---|
| private static final long |
| Access | Constructor and Description |
|---|---|
| public |
| Modifier and Type | Method and Description |
|---|---|
| public Double | terminate()
Overrides org. Implements org. Return the result scalar value |
| serialVersionUID | back to summary |
|---|---|
| private static final long serialVersionUID Hides org. | |
| StdDevPAggregator | back to summary |
|---|---|
| public StdDevPAggregator() | |
| terminate | back to summary |
|---|---|
| public Double terminate() Overrides org. Implements org. Doc from org. Return the result scalar value | |