get_data_contour
- sherpa.astro.ui.get_data_contour(id=None, recalc=True)
Return the data used by contour_data.
- Parameters
id (int or str, optional) – The data set. If not given then the default identifier is used, as returned by
get_default_id
.recalc (bool, optional) – If
False
then the results from the last call tocontour_data
(orget_data_contour
) are returned, otherwise the data is re-generated.
- Returns
resid_data – The
y
attribute contains the residual values and thex0
andx1
arrays contain the corresponding coordinate values, as one-dimensional arrays.- Return type
a
sherpa.plot.DataContour
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_data_image
Return the data used by image_data.
contour_data
Contour the values of an image data set.
image_data
Display a data set in the image viewer.
Examples
Return the data for the default data set:
>>> dinfo = get_data_contour()