%Detection
%=========
%   
%Calculation of the likelihood ratio of ARMA models.
%
%  likelihoodR         - Likelihood ratio
%  likelihoodR_mod     - modified likelihood ratio: includes
%                        a correction for the number of
%                        estimated parameters. This can be used
%                        for detection with models that have been
%                        selected using statistical order selection
%                        criteria.