get_source_contour

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

Return the data used by contour_source.

Parameters:

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

Returns:

resid_data – The y attribute contains the model values and the x0 and x1 arrays the corresponsing coordinate values, as one-dimensional arrays.

Return type:

a sherpa.plot.SourceContour instance

Raises:

• sherpa.utils.err.DataErr – If the data set is not 2D.
• sherpa.utils.err.IdentifierErr – If the data set does not exist or a source expression has not been set.

See also

get_source_image()

Return the data used by image_source.

contour_source()

Contour the values of the model, without any PSF.

image_source()

Display the source expression for a data set in the image viewer.

Examples

Return the source model pixel values for the default data set:

>>> sinfo = get_source_contour()