get_bkg_stat_info

Context: fitting

Synopsis

Return the statistic values for the current background models.

Syntax

get_bkg_stat_info()

Description

Return the statistic values for the background datasets. See get_stat_info.

Example

>>> res = get_stat_info()
>>> res[0].statval
498.21750663761935
>>> res[0].dof
439

PARAMETERS

This function has no parameters

Return value

The return value from this function is:

stats -- The values for each data set. If there are multiple model expressions then the last element will be the value for the combined data sets.

Notes

If a fit to a particular data set has not been made, or values - such as parameter settings, the noticed data range, or choice of statistic - have been changed since the last fit, then the results for that data set may not be meaningful and will therefore bias the results for the simultaneous results.

Changes in CIAO

Added in CIAO 4.16

Bugs

See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.