#include <LikelihoodFunctional.hh>

Inheritance diagram for Genfun::LikelihoodFunctional:

Public Member Functions
	LikelihoodFunctional (const ArgumentList &aList)

	~LikelihoodFunctional ()

virtual double	operator[] (const AbsFunction &function) const

Public Member Functions inherited from Genfun::AbsFunctional
	AbsFunctional ()

virtual	~AbsFunctional ()

virtual double	operator[] (const AbsFunction &function) const =0

Detailed Description

Author

Definition at line 20 of file LikelihoodFunctional.hh.

Constructor & Destructor Documentation

◆ LikelihoodFunctional()

Genfun::LikelihoodFunctional::LikelihoodFunctional ( const ArgumentList & aList )

Definition at line 13 of file LikelihoodFunctional.cc.

                                                                    :
_aList(aList)
{}

◆ ~LikelihoodFunctional()

Genfun::LikelihoodFunctional::~LikelihoodFunctional ( )

Definition at line 17 of file LikelihoodFunctional.cc.

17 {

18}

Member Function Documentation

◆ operator[]()

double Genfun::LikelihoodFunctional::operator[] ( const AbsFunction & function ) const

virtual

Implements Genfun::AbsFunctional.

Definition at line 20 of file LikelihoodFunctional.cc.

                                                                            {
  double logLikelihood(0);
  for (unsigned int i=0; i<_aList.size();i++) {
    Argument a = _aList[i];
    double f = function(a);
    if (f<=0.0) {
      std::ostringstream stream;
      stream <<  "Negative likelihood arg[" << i << "]=" << a;
      throw std::runtime_error(stream.str());
    }
    logLikelihood -= log(f);
  }
  return 2.0*logLikelihood;
}