set_default_id
- sherpa.astro.ui.set_default_id(id: IdType) None
Set the default data set identifier.
The Sherpa data id ties data, model, fit, and plotting information into a data set easily referenced by id. The default identifier, used by many commands, is changed by this command. The current setting can be found by using
get_default_id
.- Parameters:
id (int or str) – The default data set identifier to be used by certain Sherpa functions when an identifier is not given, or set to
None
.
See also
get_default_id
Return the default data set identifier.
list_data_ids
List the identifiers for the loaded data sets.
Notes
The default Sherpa data set identifier is the integer 1.
Examples
After the following, many commands, such as
set_source
, will use ‘src’ as the default data set identifier:>>> set_default_id('src')
Restore the default data set identifier.
>>> set_default_id(1)