get_model¶
-
sherpa.ui.
get_model
(id=None)¶ Return the model expression for a data set.
This returns the model expression for a data set, including any instrument response (e.g. PSF or ARF and RMF) whether created automatically or explicitly, with set_full_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
This can contain multiple model components and any instrument response. Changing attributes of this model changes the model used by the data set.
- Return type
instance
See also
delete_model
Delete the model expression from a data set.
get_model_pars
Return the names of the parameters of a model.
get_model_type
Describe a model expression.
get_source
Return the source model expression for a data set.
list_model_ids
List of all the data sets with a source expression.
sherpa.astro.ui.set_bkg_model
Set the background model expression for a data set.
set_model
Set the source model expression for a data set.
set_full_model
Define the convolved model expression for a data set.
show_model
Display the source model expression for a data set.
Examples
Return the model fitted to the default data set:
>>> mdl = get_model() >>> len(mdl.pars) 5