CountUniqueAction

class lsst.analysis.tools.actions.scalar.CountUniqueAction(*args, **kw)

Bases: ScalarAction

Counts the number of unique rows in a given column.

Parameters:

dataKeyedData

Returns:

countScalar

The number of unique rows in a given column.

Attributes Summary

vectorKey

Name of column.

Methods Summary

__call__(data, **kwargs)	Call self as a function.
getInputSchema()	Return the schema an AnalysisAction expects to be present in the arguments supplied to the __call__ method.

Attributes Documentation

vectorKey

Name of column. (str)

Methods Documentation

__call__(data: MutableMapping[str, ndarray[Any, dtype[ScalarType]] | Scalar | HealSparseMap], **kwargs) → Scalar

Call self as a function.

getInputSchema() → HealSparseMap]]]

Return the schema an AnalysisAction expects to be present in the arguments supplied to the __call__ method.

Returns:

resultKeyedDataSchema

The schema this action requires to be present when calling this action, keys are unformatted.