PsfSdssTraceSizeDiff

class lsst.pipe.tasks.functors.PsfSdssTraceSizeDiff(filt=None, dataset=None, noDup=None)

Bases: Functor

Functor to calculate SDSS trace radius size difference (%) between object and psf model

Attributes Summary

columns	Columns required to perform calculation
name
noDup
shortname

Methods Summary

__call__(data[, dropna])	Call self as a function.
difference(data1, data2, **kwargs)	Computes difference between functor called on two different DataFrame/Handle objects
fail(df)
multilevelColumns(data[, columnIndex, ...])	Returns columns needed by functor from multilevel dataset

Attributes Documentation

columns

Columns required to perform calculation

name = 'PSF - SDSS Trace Size'

noDup

shortname = 'psf_sdssTrace'

Methods Documentation

__call__(data, dropna=False)

Call self as a function.

difference(data1, data2, **kwargs)

Computes difference between functor called on two different DataFrame/Handle objects

fail(df)

multilevelColumns(data, columnIndex=None, returnTuple=False)

Returns columns needed by functor from multilevel dataset

To access tables with multilevel column structure, the DeferredDatasetHandle or InMemoryDatasetHandle need to be passed either a list of tuples or a dictionary.

Parameters:

datavarious

The data as either DeferredDatasetHandle, or InMemoryDatasetHandle.

columnIndex (optional): pandas `Index` object

either passed or read in from DeferredDatasetHandle.

`returnTuple`bool

If true, then return a list of tuples rather than the column dictionary specification. This is set to True by CompositeFunctor in order to be able to combine columns from the various component functors.