UnbinnedFitDeDxEstimator Class Reference

#include <UnbinnedFitDeDxEstimator.h>

Inheritance diagram for UnbinnedFitDeDxEstimator:

Public Member Functions
std::pair< float, float >	dedx (const reco::DeDxHitCollection &Hits) override
	UnbinnedFitDeDxEstimator (const edm::ParameterSet &iConfig)
	~UnbinnedFitDeDxEstimator () override
Public Member Functions inherited from BaseDeDxEstimator
virtual void	beginRun (edm::Run const &run, const edm::EventSetup &iSetup)
virtual	~BaseDeDxEstimator ()

Public Attributes
double	data [50]
TF1 *	f1
UnbinnedLikelihoodFit	fitter

Detailed Description

Definition at line 14 of file UnbinnedFitDeDxEstimator.h.

Constructor & Destructor Documentation

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

inline

Definition at line 16 of file UnbinnedFitDeDxEstimator.h.

References f1, fitter, and UnbinnedLikelihoodFit::setFunction().

                                                           {
    fitter.setFunction((f1 = new TF1("myLandau", "TMath::Landau(x,[0],[1],1)", 0, 255)));
  }

UnbinnedFitDeDxEstimator::~UnbinnedFitDeDxEstimator ( )

inlineoverride

Definition at line 20 of file UnbinnedFitDeDxEstimator.h.

References f1.

                                       {
    // clean up everything
    delete f1;
  }

Member Function Documentation

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

inlineoverridevirtual

Implements BaseDeDxEstimator.

Definition at line 25 of file UnbinnedFitDeDxEstimator.h.

References data, f1, UnbinnedLikelihoodFit::fit(), fitter, and mps_fire::i.

                                                                         {
    // if there is no hit, returns invalid.
    if (Hits.empty())
      return std::make_pair(-1, -1);
    // sets the initial parameters
    f1->SetParameters(3.0, 0.3);
    // fills a temporary array and performs the fit
    uint32_t i = 0;
    for (reco::DeDxHitCollection::const_iterator hit = Hits.begin(); hit != Hits.end(); ++hit, ++i) {
      data[i] = hit->charge();
    }
    // fit !
    fitter.fit(Hits.size(), data);
    // returns the mpv and its error
    return std::make_pair(f1->GetParameter(0), f1->GetParError(0));
  }

Member Data Documentation

double UnbinnedFitDeDxEstimator::data[50]

Definition at line 43 of file UnbinnedFitDeDxEstimator.h.

Referenced by data_sources.node::__str__(), data_sources.json_list::as_dicts(), data_sources.json_list::as_table(), dedx(), data_sources.json_list::get_members(), data_sources.json_list::last(), and cuy.FindIssue::startElement().

TF1* UnbinnedFitDeDxEstimator::f1

Definition at line 44 of file UnbinnedFitDeDxEstimator.h.

Referenced by dedx(), UnbinnedFitDeDxEstimator(), and ~UnbinnedFitDeDxEstimator().

UnbinnedLikelihoodFit UnbinnedFitDeDxEstimator::fitter

Definition at line 45 of file UnbinnedFitDeDxEstimator.h.

Referenced by dedx(), and UnbinnedFitDeDxEstimator().