Inheritance diagram for lsst.meas.algorithms.sourceSelector.MagnitudeErrorLimit:

Public Member Functions
	apply (self, catalog)

Static Public Attributes
	magErrField

	minimum = pexConfig.Field(dtype=float, optional=True, doc="Select objects with value greater than this")

	maximum = pexConfig.Field(dtype=float, optional=True, doc="Select objects with value less than this")

Detailed Description

Select sources using a magnitude error limit

Because the magnitude error is the inverse of the signal-to-noise
ratio, this also works to select sources by signal-to-noise when
you only have a magnitude.

This object can be used as a `lsst.pex.config.Config` for configuring
the limit, and then the `apply` method can be used to identify sources
in the catalog that match the configured limit.

Definition at line 354 of file sourceSelector.py.

Member Function Documentation

◆ apply()

lsst.meas.algorithms.sourceSelector.MagnitudeErrorLimit.apply	(		self,
			catalog )

Apply the magnitude error limits to a catalog

Parameters
----------
catalog : `lsst.afw.table.SourceCatalog`
    Catalog of sources to which the limit will be applied.

Returns
-------
selected : `numpy.ndarray`
    Boolean array indicating for each source whether it is selected
    (True means selected).

Reimplemented from lsst.meas.algorithms.sourceSelector.BaseLimit.

Definition at line 368 of file sourceSelector.py.

    def apply(self, catalog):
        """Apply the magnitude error limits to a catalog
 
        Parameters
        ----------
        catalog : `lsst.afw.table.SourceCatalog`
            Catalog of sources to which the limit will be applied.
 
        Returns
        -------
        selected : `numpy.ndarray`
            Boolean array indicating for each source whether it is selected
            (True means selected).
        """
        return BaseLimit.apply(self, catalog[self.magErrField])
 
 

Member Data Documentation

◆ magErrField

lsst.meas.algorithms.sourceSelector.MagnitudeErrorLimit.magErrField

static

Initial value:

= pexConfig.Field(dtype=str, default="mag_err",

doc="Name of the source flux error field to use.")

Definition at line 365 of file sourceSelector.py.

◆ maximum

lsst.meas.algorithms.sourceSelector.BaseLimit.maximum = pexConfig.Field(dtype=float, optional=True, doc="Select objects with value less than this")

staticinherited

Definition at line 175 of file sourceSelector.py.

◆ minimum

lsst.meas.algorithms.sourceSelector.BaseLimit.minimum = pexConfig.Field(dtype=float, optional=True, doc="Select objects with value greater than this")

staticinherited

Definition at line 174 of file sourceSelector.py.

The documentation for this class was generated from the following file:

/j/snowflake/release/lsstsw/stack/lsst-scipipe-12.1.0/Linux/meas_algorithms/gcc769fe2a4+97d0256649/python/lsst/meas/algorithms/sourceSelector.py

Public Member Functions