get_stat

sherpa.astro.ui.get_stat(name=None)

Return a fit statisic.

Parameters:name (str, optional) – If not given, the current fit statistic is returned, otherwise it should be one of the names returned by the list_stats function. Returns:stat – An object representing the fit statistic. Return type:object Raises:sherpa.utils.err.ArgumentErr – If the name argument is not recognized.

See also

get_stat_name()

Return the name of the current fit statistic.

list_stats()

List the fit statistics.

set_stat()

Change the fit statistic.

Examples

>>> stat = ui.stat()
>>> stat
Chi Squared with Gehrels variance
>>> stat.name
'chi2gehrels'