root/Minuit2/ModularFunctionMinimizer.h

0001 // @(#)root/minuit2:$Id$
0002 // Authors: M. Winkler, F. James, L. Moneta, A. Zsenei   2003-2005
0003
0004 /**********************************************************************
0005  *                                                                    *
0006  * Copyright (c) 2005 LCG ROOT Math team,  CERN/PH-SFT                *
0007  *                                                                    *
0008  **********************************************************************/
0009
0010 #ifndef ROOT_Minuit2_ModularFunctionMinimizer
0011 #define ROOT_Minuit2_ModularFunctionMinimizer
0012
0013 #include "Minuit2/MnConfig.h"
0014
0015 #include "Minuit2/MnStrategy.h"
0016
0017 #include <vector>
0018
0019 namespace ROOT {
0020
0021 namespace Minuit2 {
0022
0023 class MinimumSeedGenerator;
0024 class MinimumBuilder;
0025 class MinimumSeed;
0026 class MnFcn;
0027 class GradientCalculator;
0028 class MnUserParameterState;
0029 class MnUserParameters;
0030 class MnUserCovariance;
0031 class FCNBase;
0032 class FumiliFCNBase;
0033 class FunctionMinimum;
0034
0035 //_____________________________________________________________
0036 /**
0037    Base common class providing the API for all the minimizer
0038    Various Minimize methods are provided varying on the type of
0039    FCN function passesd and on the objects used for the parameters
0040  */
0041 class ModularFunctionMinimizer {
0042
0043 public:
0044
0045    virtual ~ModularFunctionMinimizer() = default;
0046
0047    virtual FunctionMinimum Minimize(const FCNBase &, const MnUserParameterState &, const MnStrategy & = MnStrategy{1},
0048                                     unsigned int maxfcn = 0, double toler = 0.1) const;
0049
0050    virtual const MinimumSeedGenerator &SeedGenerator() const = 0;
0051    virtual const MinimumBuilder &Builder() const = 0;
0052    virtual MinimumBuilder &Builder() = 0;
0053
0054 public:
0055    virtual FunctionMinimum Minimize(const MnFcn &, const GradientCalculator &, const MinimumSeed &, const MnStrategy &,
0056                                     unsigned int, double) const;
0057 };
0058
0059 } // namespace Minuit2
0060
0061 } // namespace ROOT
0062
0063 #endif // ROOT_Minuit2_ModularFunctionMinimizer