GroupScaleStep

class jwst.group_scale.GroupScaleStep(name=None, parent=None, config_file=None, _validate_kwds=True, **kws)[source]

Bases: JwstStep

Rescale group data to account for on-board frame averaging.

Create a Step instance.

Parameters:

namestr: The name of the Step instance. Used in logging messages and in cache filenames. If not provided, one will be generated based on the class name.
parentStep: The parent step of this step. Used to determine a fully-qualified name for this step, and to determine the mode in which to run this step.
config_filestr or pathlib.Path: The path to the config file that this step was initialized with. Use to determine relative path names of other config files.
_validate_kwdsbool: Validate given kws against specs/config.
**kwsdict: Additional parameters to set. These will be set as member variables on the new Step instance.

Attributes Summary

`class_alias`
`spec`

Methods Summary

process(step_input)

Perform group scale step.

Attributes Documentation

class_alias = 'group_scale'

spec

Methods Documentation

process(step_input)[source]

Perform group scale step.

Rescales group data to account for on-board frame averaging that did not use FRMDIVSR = NFRAMES. All groups in the exposure are rescaled by FRMDIVSR/NFRAMES.

Parameters:

step_inputdatamodel: Input data model on which to perform group scale step.

Returns:

resultdatamodel: Output data model on which the group scale step has been performed.