FumiliMinimizer.h

Go to the documentation of this file.

// @(#)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_FumiliMinimizer
#define ROOT_Minuit2_FumiliMinimizer
 
#include "Minuit2/ModularFunctionMinimizer.h"
#include "Minuit2/MnSeedGenerator.h"
#include "Minuit2/FumiliBuilder.h"
 
namespace ROOT {
 
   namespace Minuit2 {
 
 
 
class MinimumSeedGenerator;
class MinimumBuilder;
class MinimumSeed;
class MnFcn;
class FumiliFcnBase;
class GradientCalculator;
class MnUserParameterState;
class MnUserParameters;
class MnUserCovariance;
class MnStrategy;
 
 
 
//______________________________________________________________
/**
 
Instantiates the seed generator and Minimum builder for the
Fumili minimization method. Produces the Minimum via the
Minimize methods inherited from ModularFunctionMinimizer.
 
@author Andras Zsenei and Lorenzo Moneta, Creation date: 28 Sep 2004
 
@ingroup Minuit
 
*/
 
 
class FumiliMinimizer : public ModularFunctionMinimizer {
 
public:
 
 
   /**
 
      Constructor initializing the FumiliMinimizer by instantiatiating
      the SeedGenerator and MinimumBuilder for the Fumili minimization method.
 
      @see MnSeedGenerator
 
      @see FumiliBuilder
 
   */
 
   FumiliMinimizer() : fMinSeedGen(MnSeedGenerator()),
                       fMinBuilder(FumiliBuilder()) {}
 
   ~FumiliMinimizer() {}
 
 
   /**
 
      Accessor to the seed generator of the minimizer.
 
      @return A reference to the seed generator used by the minimizer
 
   */
 
   const MinimumSeedGenerator& SeedGenerator() const {return fMinSeedGen;}
 
 
   /**
 
      Accessor to the Minimum builder of the minimizer.
 
      @return a reference to the Minimum builder.
 
   */
 
   const FumiliBuilder& Builder() const {return fMinBuilder;}
   FumiliBuilder& Builder()  {return fMinBuilder;}
 
 
   // for Fumili
 
   FunctionMinimum Minimize(const FCNBase&, const MnUserParameterState&, const MnStrategy&, unsigned int maxfcn = 0, double toler = 0.1) const;
 
   virtual FunctionMinimum Minimize(const FCNGradientBase&, const MnUserParameterState&, const MnStrategy&, unsigned int maxfcn = 0, double toler = 0.1) const;
 
   // need to re-implement all function in ModularFuncitionMinimizer otherwise they will be hided
 
   virtual FunctionMinimum Minimize(const FCNBase& fcn, const std::vector<double>& par, const std::vector<double>& err, unsigned int stra = 1, unsigned int maxfcn = 0, double toler = 0.1) const {
      return ModularFunctionMinimizer::Minimize(fcn, par, err, stra, maxfcn,toler);
   }
 
   virtual FunctionMinimum Minimize(const FCNGradientBase&fcn, const std::vector<double>&par, const std::vector<double>&err, unsigned int stra=1, unsigned int maxfcn = 0, double toler = 0.1) const {
      return ModularFunctionMinimizer::Minimize(fcn,par,err,stra,maxfcn,toler);
   }
 
   virtual FunctionMinimum Minimize(const FCNBase& fcn, const std::vector<double>&par, unsigned int nrow, const std::vector<double>&cov, unsigned int stra=1, unsigned int maxfcn = 0, double toler = 0.1) const {
      return ModularFunctionMinimizer::Minimize(fcn,par,nrow,cov,stra,maxfcn,toler);
   }
 
   virtual FunctionMinimum Minimize(const FCNGradientBase& fcn, const std::vector<double>&par, unsigned int nrow, const std::vector<double>&cov, unsigned int stra=1, unsigned int maxfcn = 0, double toler = 0.1) const {
      return ModularFunctionMinimizer::Minimize(fcn,par,nrow,cov,stra,maxfcn,toler);
   }
 
 
   virtual FunctionMinimum Minimize(const FCNBase& fcn, const MnUserParameters& par, const MnStrategy& stra, unsigned int maxfcn = 0, double toler = 0.1) const {
      return ModularFunctionMinimizer::Minimize(fcn,par,stra,maxfcn,toler);
   }
 
   virtual FunctionMinimum Minimize(const FCNGradientBase& fcn, const MnUserParameters& par, const MnStrategy& stra, unsigned int maxfcn = 0, double toler = 0.1) const {
      return ModularFunctionMinimizer::Minimize(fcn,par,stra,maxfcn,toler);
   }
 
   virtual FunctionMinimum Minimize(const FCNBase& fcn, const MnUserParameters& par, const MnUserCovariance& cov, const MnStrategy& stra, unsigned int maxfcn = 0, double toler = 0.1) const {
      return ModularFunctionMinimizer::Minimize(fcn,par,cov,stra,maxfcn,toler);
   }
 
   virtual FunctionMinimum Minimize(const FCNGradientBase& fcn, const MnUserParameters& par, const MnUserCovariance& cov, const MnStrategy& stra, unsigned int maxfcn = 0, double toler = 0.1) const {
      return ModularFunctionMinimizer::Minimize(fcn,par,cov,stra,maxfcn,toler);
   }
 
 
 
   virtual FunctionMinimum Minimize(const MnFcn& mfcn, const GradientCalculator& gc, const MinimumSeed& seed, const MnStrategy& stra, unsigned int maxfcn, double toler) const {
      return ModularFunctionMinimizer::Minimize(mfcn, gc, seed, stra, maxfcn, toler);
   }
 
 
private:
 
   MnSeedGenerator fMinSeedGen;
   FumiliBuilder fMinBuilder;
 
};
 
  }  // namespace Minuit2
 
}  // namespace ROOT
 
#endif  // ROOT_Minuit2_FumiliMinimizer