/data/refman/pasoursint/CMSSW_5_3_3/src/Alignment/MuonAlignmentAlgorithms/interface/MuonResiduals1DOFFitter.h

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#ifndef Alignment_MuonAlignmentAlgorithms_MuonResiduals1DOFFitter_H
#define Alignment_MuonAlignmentAlgorithms_MuonResiduals1DOFFitter_H

#include "Alignment/MuonAlignmentAlgorithms/interface/MuonResidualsFitter.h"

class MuonResiduals1DOFFitter: public MuonResidualsFitter {
public:
  enum {
    kAlign = 0,
    kSigma,
    kGamma,
    kNPar
  };

  enum {
    kResid = 0,
    kRedChi2,
    kNData
  };

  MuonResiduals1DOFFitter(int residualsModel, int minHits, int useResiduals, bool weightAlignment=true): MuonResidualsFitter(residualsModel, minHits, useResiduals, weightAlignment) {}

  int type() const { return MuonResidualsFitter::k1DOF; }

  int npar() {
    if (residualsModel() == kPureGaussian || residualsModel() == kGaussPowerTails) return kNPar - 1;
    else if (residualsModel() == kPowerLawTails) return kNPar;
    else if (residualsModel() == kROOTVoigt) return kNPar;
    else assert(false);
  }
  int ndata() { return kNData; }

  double sumofweights();
  bool fit(Alignable *ali);
  double plot(std::string name, TFileDirectory *dir, Alignable *ali);

protected:
  void inform(TMinuit *tMinuit);
};

#endif // Alignment_MuonAlignmentAlgorithms_MuonResiduals1DOFFitter_H