# get_pileup_model¶

sherpa.astro.ui.get_pileup_model(id=None)

Return the pile up model for a data set.

Return the pile up model set by a call to set_pileup_model.

Parameters

id (int or str, optional) – The data set containing the source expression. If not given then the default identifier is used, as returned by get_default_id.

Returns

model

Return type

a sherpa.astro.models.JDPileup instance

Raises

sherpa.utils.err.IdentifierErr – If no pile up model has been set for the data set.

delete_pileup_model()

Delete the pile up model for a data set.

fit()

Fit one or more data sets.

get_model()

Return the model expression for a data set.

get_source()

Return the source model expression for a data set.

sherpa.astro.models.JDPileup()

The ACIS pile up model.

list_pileup_model_ids()

List of all the data sets with a pile up model.

set_pileup_model()

Include a model of the Chandra ACIS pile up when fitting PHA data.

Examples

>>> jdp1 = get_pileup_model()
>>> jdp2 = get_pileup_model(2)