CalcSn¶

class lsst.analysis.tools.actions.vector.CalcSn(*args, **kw)¶

Bases: VectorAction

Calculate the signal-to-noise ratio from a single flux vector.

Attributes Summary

`fluxType`	Flux type (vector key) to calculate the S/N.
`uncertaintySuffix`	Suffix to add to fluxType to specify the uncertainty column (`str`, default `'Err'`)

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

fluxType¶: Flux type (vector key) to calculate the S/N. (str, default '{band}_psfFlux')

uncertaintySuffix¶: Suffix to add to fluxType to specify the uncertainty column (str, default 'Err')

Methods Documentation

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