Likelihood

class gammapy.utils.fitting.Likelihood(function, parameters)

Bases: object

Wrapper of the likelihood function used by the optimiser.

This might become superfluous if we introduce a generic Likelihood interface and use that directly, or change the Fit class to work with Model and Likelihood objects.

For now, this class does the translation of parameter values and the parameter factors the optimiser sees.

Parameters:

parameters : Parameters

Parameters with starting values

function : callable

Likelihood function

Methods Summary

fcn(factors)

Methods Documentation

fcn(factors)