optimize_iminuit

gammapy.utils.fitting.optimize_iminuit(parameters, function, **kwargs)

iminuit optimization

Parameters:

parameters : Parameters

Parameters with starting values

function : callable

Likelihood function

**kwargs : dict

Options passed to iminuit.Minuit constructor. If there is an entry ‘migrad_opts’, those options will be passed to iminuit.Minuit.migrad().

Returns:

result : (factors, info, optimizer)

Tuple containing the best fit factors, some info and the optimizer instance.