/usr/include/root/TFitter.h is in libroot-math-minuit-dev 5.34.14-1build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
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// Author: Rene Brun 31/08/99
/*************************************************************************
* Copyright (C) 1995-2000, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#ifndef ROOT_TFitter
#define ROOT_TFitter
//////////////////////////////////////////////////////////////////////////
// //
// TFitter //
// //
// The ROOT standard fitter based on TMinuit //
// //
//////////////////////////////////////////////////////////////////////////
#ifndef ROOT_TVirtualFitter
#include "TVirtualFitter.h"
#endif
class TMinuit;
class TFitter : public TVirtualFitter {
private:
Int_t fNlog; //Number of elements in fSunLog
Double_t *fCovar; //Covariance matrix
Double_t *fSumLog; //Sum of logs (array of fNlog elements)
TMinuit *fMinuit; //pointer to the TMinuit object
TFitter(const TFitter&); // Not implemented
TFitter& operator=(const TFitter&); // Not implemented
public:
TFitter(Int_t maxpar = 25);
virtual ~TFitter();
virtual Double_t Chisquare(Int_t npar, Double_t *params) const ;
virtual void Clear(Option_t *option="");
virtual Int_t ExecuteCommand(const char *command, Double_t *args, Int_t nargs);
virtual void FitChisquare(Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag);
virtual void FitChisquareI(Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag);
virtual void FitLikelihood(Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag);
virtual void FitLikelihoodI(Int_t &npar, Double_t *gin, Double_t &f, Double_t *u, Int_t flag);
virtual void FixParameter(Int_t ipar);
virtual void GetConfidenceIntervals(Int_t n, Int_t ndim, const Double_t *x, Double_t *ci, Double_t cl=0.95);
virtual void GetConfidenceIntervals(TObject *obj, Double_t cl=0.95);
virtual Double_t *GetCovarianceMatrix() const;
virtual Double_t GetCovarianceMatrixElement(Int_t i, Int_t j) const;
virtual Int_t GetErrors(Int_t ipar,Double_t &eplus, Double_t &eminus, Double_t &eparab, Double_t &globcc) const;
TMinuit *GetMinuit() const {return fMinuit;}
virtual Int_t GetNumberTotalParameters() const;
virtual Int_t GetNumberFreeParameters() const;
virtual Double_t GetParError(Int_t ipar) const;
virtual Double_t GetParameter(Int_t ipar) const;
virtual Int_t GetParameter(Int_t ipar,char *name,Double_t &value,Double_t &verr,Double_t &vlow, Double_t &vhigh) const;
virtual const char *GetParName(Int_t ipar) const;
virtual Int_t GetStats(Double_t &amin, Double_t &edm, Double_t &errdef, Int_t &nvpar, Int_t &nparx) const;
virtual Double_t GetSumLog(Int_t i);
virtual Bool_t IsFixed(Int_t ipar) const;
virtual void PrintResults(Int_t level, Double_t amin) const;
virtual void ReleaseParameter(Int_t ipar);
virtual void SetFCN(void *fcn);
virtual void SetFCN(void (*fcn)(Int_t &, Double_t *, Double_t &f, Double_t *, Int_t));
virtual void SetFitMethod(const char *name);
virtual Int_t SetParameter(Int_t ipar,const char *parname,Double_t value,Double_t verr,Double_t vlow, Double_t vhigh);
ClassDef(TFitter,0) //The ROOT standard fitter based on TMinuit
};
#endif
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