rail.creation.degradation.quantityCut module

Degrader that applies a cut to given columns.

class rail.creation.degradation.quantityCut.QuantityCut(args, comm=None)

Bases: Degrader

Degrader that applies a cut to the given columns.

Note if a galaxy fails any of the cuts on any one of its columns, that galaxy is removed from the sample.

config_options = {'cuts': <class 'dict'>, 'output_mode': <ceci.config.StageParameter object>, 'seed': 12345}

name = 'QuantityCut'

run()

Run method

Applies cuts

Notes

Get the input data from the data store under this stages ‘input’ tag Puts the data into the data store under this stages ‘output’ tag

set_cuts(cuts: dict)

Parameters:

cuts (dict) – A dictionary of cuts to make on the data.

Notes

The cut keys should be the names of columns you wish to make cuts on. The cut values should be either: - a number, which is the maximum value. I.e. if the dictionary contains “i”: 25, then values of i > 25 are cut from the sample. - an iterable, which is the range of acceptable values. I.e. if the dictionary contains “redshift”: (1.5, 2.3), then redshifts outside that range are cut from the sample.