Synopsis
Chi-square statistic with variance set to 1.
Description
The leastsq statistic is equivalent to chi2constvar ("ahelp chi2constvar"), except the variance is always set to 1.
Example
sherpa> set_stat("leastsq")
sherpa> show_stat()Set the fitting statistic and then confirm the new value.
Bugs
See the bugs pages on the Sherpa website for an up-to-date listing of known bugs.
See Also
- info
- list_stats
- statistics
- cash, chi2constvar, chi2datavar, chi2gehrels, chi2modvar, chi2xspecvar, chisquare, cstat, get_prior, list_priors, set_prior, set_sampler, set_stat, wstat