#include <GenericTruncatedAverageDeDxEstimator.h>

Inheritance diagram for GenericTruncatedAverageDeDxEstimator:

Public Member Functions
std::pair< float, float >	dedx (const reco::DeDxHitCollection &Hits) override

	GenericTruncatedAverageDeDxEstimator (const edm::ParameterSet &iConfig)

Public Member Functions inherited from BaseDeDxEstimator
virtual void	beginRun (edm::Run const &run, const edm::EventSetup &iSetup)

virtual	~BaseDeDxEstimator ()

Private Attributes
float	m_expo

float	m_fraction

Detailed Description

Definition at line 9 of file GenericTruncatedAverageDeDxEstimator.h.

Constructor & Destructor Documentation

GenericTruncatedAverageDeDxEstimator::GenericTruncatedAverageDeDxEstimator ( const edm::ParameterSet & iConfig )

inline

Definition at line 12 of file GenericTruncatedAverageDeDxEstimator.h.

References edm::ParameterSet::getParameter(), m_expo, and m_fraction.

                                                                      {
     m_fraction = iConfig.getParameter<double>("fraction");
     m_expo = iConfig.getParameter<double>("exponent");
  }

Member Function Documentation

std::pair<float,float> GenericTruncatedAverageDeDxEstimator::dedx ( const reco::DeDxHitCollection & Hits )

inlineoverridevirtual

Implements BaseDeDxEstimator.

Definition at line 17 of file GenericTruncatedAverageDeDxEstimator.h.

References ALCARECOTkAlJpsiMuMu_cff::charge, plotBeamSpotDB::first, mps_fire::i, createfilelist::int, plotBeamSpotDB::last, m_expo, m_fraction, and funct::pow().

Referenced by DeDxHitInfoProducer::produce().

                                                                       {
     int first = 0, last = Hits.size();
     if (m_fraction > 0) { // truncate high charge ones
        last -= int(Hits.size()*m_fraction); 
     } else {
        first += int(Hits.size()*(-m_fraction)); 
     }
     double sumdedx = 0;
     for(int i = first; i < last; i++){
        sumdedx+=pow(Hits[i].charge(),m_expo);
     } 
    double avrdedx = (last-first) ? pow(sumdedx/(last-first),1.0/m_expo) :0.0;
    return  std::make_pair(avrdedx,-1);
  } 

Member Data Documentation

float GenericTruncatedAverageDeDxEstimator::m_expo

private

Definition at line 33 of file GenericTruncatedAverageDeDxEstimator.h.

Referenced by dedx(), and GenericTruncatedAverageDeDxEstimator().

float GenericTruncatedAverageDeDxEstimator::m_fraction