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 10 of file VertexWeighter.h.

Constructor & Destructor Documentation

VertexWeighter() [1/3]

VertexWeighter::VertexWeighter

(

)

Definition at line 6 of file VertexWeighter.cc.

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

VertexWeighter() [2/3]

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

Definition at line 9 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() [3/3]

VertexWeighter::VertexWeighter

(

const edm::ParameterSet &

iConfig

)

Definition at line 19 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

weight()

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

Definition at line 26 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

m_dummy

const bool VertexWeighter::m_dummy

private

Definition at line 23 of file VertexWeighter.h.

Referenced by weight().

m_mean_init

const double VertexWeighter::m_mean_init

private

Definition at line 20 of file VertexWeighter.h.

Referenced by weight().

m_sigma_final

const double VertexWeighter::m_sigma_final

private

Definition at line 21 of file VertexWeighter.h.

Referenced by weight().

m_sigma_init

const double VertexWeighter::m_sigma_init

private

Definition at line 19 of file VertexWeighter.h.

Referenced by weight().

m_usemain

const bool VertexWeighter::m_usemain

private

Definition at line 22 of file VertexWeighter.h.

Referenced by weight().