MnFumiliMinimize.h

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// @(#)root/minuit2:$Id$
// Authors: M. Winkler, F. James, L. Moneta, A. Zsenei   2003-2005
 
/**********************************************************************
 *                                                                    *
 * Copyright (c) 2005 LCG ROOT Math team,  CERN/PH-SFT                *
 *                                                                    *
 **********************************************************************/
 
#ifndef ROOT_Minuit2_MnFumiliMinimize
#define ROOT_Minuit2_MnFumiliMinimize
 
#include "Minuit2/MnApplication.h"
#include "Minuit2/FumiliMinimizer.h"
#include "Minuit2/FumiliFCNBase.h"
 
#include <vector>
 
namespace ROOT {
 
namespace Minuit2 {
 
// class FumiliFCNBase;
// class FCNBase;
 
//___________________________________________________________________________
/**
 
 
API class for minimization using Fumili technology;
allows for user interaction: set/change parameters, do minimization,
change parameters, re-do minimization etc.;
also used by MnMinos and MnContours;
 
 
 */
 
class MnFumiliMinimize : public MnApplication {
 
public:
   /// construct from FumiliFCNBase + std::vector for parameters and errors
   MnFumiliMinimize(const FumiliFCNBase &fcn, const std::vector<double> &par, const std::vector<double> &err,
                    unsigned int stra = 1)
      : MnApplication(fcn, MnUserParameterState(par, err), MnStrategy(stra)), fMinimizer(FumiliMinimizer()), fFCN(fcn)
   {
   }
 
   /// construct from FumiliFCNBase + std::vector for parameters and covariance
   MnFumiliMinimize(const FumiliFCNBase &fcn, const std::vector<double> &par, unsigned int nrow,
                    const std::vector<double> &cov, unsigned int stra = 1)
      : MnApplication(fcn, MnUserParameterState(par, cov, nrow), MnStrategy(stra)), fMinimizer(FumiliMinimizer()),
        fFCN(fcn)
   {
   }
 
   /// construct from FumiliFCNBase + std::vector for parameters and MnUserCovariance
   MnFumiliMinimize(const FumiliFCNBase &fcn, const std::vector<double> &par, const MnUserCovariance &cov,
                    unsigned int stra = 1)
      : MnApplication(fcn, MnUserParameterState(par, cov), MnStrategy(stra)), fMinimizer(FumiliMinimizer()), fFCN(fcn)
   {
   }
 
   /// construct from FumiliFCNBase + MnUserParameters
   MnFumiliMinimize(const FumiliFCNBase &fcn, const MnUserParameters &par, unsigned int stra = 1)
      : MnApplication(fcn, MnUserParameterState(par), MnStrategy(stra)), fMinimizer(FumiliMinimizer()), fFCN(fcn)
   {
   }
 
   /// construct from FumiliFCNBase + MnUserParameters + MnUserCovariance
   MnFumiliMinimize(const FumiliFCNBase &fcn, const MnUserParameters &par, const MnUserCovariance &cov,
                    unsigned int stra = 1)
      : MnApplication(fcn, MnUserParameterState(par, cov), MnStrategy(stra)), fMinimizer(FumiliMinimizer()), fFCN(fcn)
   {
   }
 
   /// construct from FumiliFCNBase + MnUserParameterState + MnStrategy
   MnFumiliMinimize(const FumiliFCNBase &fcn, const MnUserParameterState &par, const MnStrategy &str)
      : MnApplication(fcn, MnUserParameterState(par), str), fMinimizer(FumiliMinimizer()), fFCN(fcn)
   {
   }
 
   MnFumiliMinimize(const MnFumiliMinimize &migr)
      : MnApplication(migr.Fcnbase(), migr.State(), migr.Strategy(), migr.NumOfCalls()), fMinimizer(migr.fMinimizer),
        fFCN(migr.Fcnbase())
   {
   }
 
   ~MnFumiliMinimize() override {}
 
   FumiliMinimizer &Minimizer() override { return fMinimizer; }
   const FumiliMinimizer &Minimizer() const override { return fMinimizer; }
 
   const FumiliFCNBase &Fcnbase() const override { return fFCN; }
 
   /// overwrite Minimize to use FumiliFCNBase
   FunctionMinimum operator()(unsigned int = 0, double = 0.1) override;
 
private:
   FumiliMinimizer fMinimizer;
   const FumiliFCNBase &fFCN;
 
private:
   // forbidden assignment of migrad (const FumiliFCNBase& = )
   MnFumiliMinimize &operator=(const MnFumiliMinimize &) { return *this; }
};
 
} // namespace Minuit2
 
} // namespace ROOT
 
#endif // ROOT_Minuit2_MnFumiliMinimize