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.

See also

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)