plot_bkg_model

sherpa.astro.ui.plot_bkg_model(id=None, bkg_id=None, **kwargs)

Plot the model for the background of a PHA data set.

This function plots the model for the background of a PHA data set, which includes any instrument response (the ARF and RMF).

Parameters:
  • id (int or str, optional) – The data set that provides the data. If not given then the default identifier is used, as returned by get_default_id.
  • bkg_id (int or str, optional) – Identify the background component to use, if there are multiple ones associated with the data set.
  • replot (bool, optional) – Set to True to use the values calculated by the last call to plot_bkg_model. The default is False.
  • overplot (bool, optional) – If True then add the data to an exsiting plot, otherwise create a new plot. The default is False.
Raises:

See also

get_bkg_model_plot()
Return the data used by plot_bkg_model.
plot_bkg_source()
Plot the model expression for the background of a PHA data set.
set_bkg_model()
Set the background model expression for a PHA data set.

Examples

>>> plot_bkg_model()
>>> plot_bkg('jet')
>>> plot_bkg_model('jet', bkg_id=1, overplot=True)
>>> plot_bkg_model('jet', bkg_id=2, overplot=True)