# list_data_ids¶

sherpa.astro.ui.list_data_ids()

List the identifiers for the loaded data sets.

Returns

ids – A list of the data set identifiers that have been created by commands like load_data and load_arrays.

Return type

list of int or str

See also

delete_data()

Delete a data set by identifier.

load_arrays()

Create a data set from arrays of data.

load_data()

Create a data set from a file.

Examples

In this case only one data set has been loaded:

>>> list_data_ids()
[1]


Two data sets have been loaded, using string identifiers:

>>> list_data_ids()
['nucleus', 'jet']