sherpa.astro.ui.set_dep(id, val=None, bkg_id=None)

Set the dependent axis of a data set.

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

  • val (array) – The array of values for the dependent axis.

  • bkg_id (int or str, optional) – Set to identify which background component to set. The default value (None) means that this is for the source component of the data set.

See also


Create the independent axis for a 1D data set.


Create the independent axis for a 2D data set.


Return the dependent axis of a data set.


Create a data set from array values.


The function does not follow the normal Python standards for parameter use, since it is designed for easy interactive use. When called with a single un-named argument, it is taken to be the val parameter. If given two un-named arguments, then they are interpreted as the id and val parameters, respectively.


Create a 1D data set with values at (0,4), (2,10), (4,12), (6,8), (8,2), and (10,12):

>>> dataspace1d(0, 10, 2, dstype=Data1D)
>>> set_dep([4, 10, 12, 8, 2, 12])

Set the values for the source and background of the data set ‘src’:

>>> set_dep('src', y1)
>>> set_dep('src', bg1, bkg_id=1)