set_data

sherpa.astro.ui.set_data(id, data=None) → None

Set a data set.

Parameters:

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

• data (instance of a sherpa.Data.Data-derived class) – The new contents of the data set. This can be copied from an existing data set or loaded in from a file (e.g. unpack_data).

See also

copy_data

Copy a data set to a new identifier.

delete_data

Delete a data set by identifier.

get_data

Return the data set by identifier.

load_data

Create a data set from a file.

unpack_data

Read in a file.

Notes

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 data parameter. If given two un-named arguments, then they are interpreted as the id and data parameters, respectively.

Examples

>>> d1 = get_data(2)
>>> set_data(d1)

Copy the background data from the default data set into a new data set identified as ‘bkg’:

>>> set_data('bkg', get_bkg())