VertexWeighter Class Reference

#include <VertexWeighter.h>

Public Member Functions
	VertexWeighter ()
	VertexWeighter (const double &sigma_init, const double &mean_init, const double &sigma_final, const bool &usemainvtx)
	VertexWeighter (const edm::ParameterSet &iConfig)
const double	weight (const std::vector< float > &zpositions, const float &zmain) const

Private Attributes
const bool	m_dummy
const double	m_mean_init
const double	m_sigma_final
const double	m_sigma_init
const bool	m_usemain

Detailed Description

Definition at line 8 of file VertexWeighter.h.

Constructor & Destructor Documentation

VertexWeighter::VertexWeighter

(

)

Definition at line 7 of file VertexWeighter.cc.

                              :
  m_sigma_init(1.), m_mean_init(0.), m_sigma_final(1.), m_usemain(false), m_dummy(true) { }

VertexWeighter::VertexWeighter	(	const double &	sigma_init,
		const double &	mean_init,
		const double &	sigma_final,
		const bool &	usemainvtx
	)

Definition at line 10 of file VertexWeighter.cc.

                                                                                                                                  :
  m_sigma_init(sigma_init), m_mean_init(mean_init), m_sigma_final(sigma_final), m_usemain(usemainvtx), m_dummy(false) { }

VertexWeighter::VertexWeighter

(

const edm::ParameterSet &

iConfig

)

Definition at line 13 of file VertexWeighter.cc.

                                                            :
  m_sigma_init(iConfig.getParameter<double>("initSigma")), 
  m_mean_init(iConfig.getParameter<double>("initMean")), 
  m_sigma_final(iConfig.getParameter<double>("finalSigma")), 
  m_usemain(iConfig.getParameter<bool>("useMainVertex")), 
  m_dummy(false) { }

Member Function Documentation

const double VertexWeighter::weight	(	const std::vector< float > &	zpositions,
		const float &	zmain
	)		const

Definition at line 20 of file VertexWeighter.cc.

References JetChargeProducer_cfi::exp, m_dummy, m_mean_init, m_sigma_final, m_sigma_init, m_usemain, and funct::pow().

Referenced by MCVerticesWeight::filter().

                                                                                                {

  double final_weight = 1.;

  if(!m_dummy) {

    for(std::vector<float>::const_iterator zpos = zpositions.begin() ; zpos != zpositions.end() ; ++zpos) {
      
      final_weight *= (m_sigma_init/m_sigma_final) * exp(-pow((*zpos-m_mean_init),2)/2.*(1./pow(m_sigma_final,2)-1./pow(m_sigma_init,2)));

    }

    if(m_usemain) {
      final_weight *= (m_sigma_init/m_sigma_final) * exp(-pow((zmain-m_mean_init),2)/2.*(1./pow(m_sigma_final,2)-1./pow(m_sigma_init,2)));
    }

  }

  return final_weight;


}

Member Data Documentation

const bool VertexWeighter::m_dummy

private

Definition at line 24 of file VertexWeighter.h.

Referenced by weight().

const double VertexWeighter::m_mean_init

private

Definition at line 21 of file VertexWeighter.h.

Referenced by weight().

const double VertexWeighter::m_sigma_final

private

Definition at line 22 of file VertexWeighter.h.

Referenced by weight().

const double VertexWeighter::m_sigma_init

private

Definition at line 20 of file VertexWeighter.h.

Referenced by weight().

const bool VertexWeighter::m_usemain

private

Definition at line 23 of file VertexWeighter.h.

Referenced by weight().