root/Minuit2/CombinedMinimumBuilder.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_CombinedMinimumBuilder
0011 #define ROOT_Minuit2_CombinedMinimumBuilder
0012
0013 #include "Minuit2/MinimumBuilder.h"
0014 #include "Minuit2/VariableMetricMinimizer.h"
0015 #include "Minuit2/SimplexMinimizer.h"
0016
0017 namespace ROOT {
0018
0019 namespace Minuit2 {
0020
0021 class CombinedMinimumBuilder : public MinimumBuilder {
0022
0023 public:
0024    CombinedMinimumBuilder() : fVMMinimizer(VariableMetricMinimizer()), fSimplexMinimizer(SimplexMinimizer()) {}
0025
0026    ~CombinedMinimumBuilder() override {}
0027
0028    FunctionMinimum Minimum(const MnFcn &, const GradientCalculator &, const MinimumSeed &, const MnStrategy &,
0029                                    unsigned int, double) const override;
0030
0031    // re-implement setter of base class. Need also to store in the base class for consistency
0032    void SetPrintLevel(int level) override
0033    {
0034       MinimumBuilder::SetPrintLevel(level);
0035       fVMMinimizer.Builder().SetPrintLevel(level);
0036       fSimplexMinimizer.Builder().SetPrintLevel(level);
0037    }
0038    void SetStorageLevel(int level) override
0039    {
0040       MinimumBuilder::SetStorageLevel(level);
0041       fVMMinimizer.Builder().SetStorageLevel(level);
0042       fSimplexMinimizer.Builder().SetStorageLevel(level);
0043    }
0044
0045    // set trace object (user manages it)
0046    void SetTraceObject(MnTraceObject &obj) override
0047    {
0048       MinimumBuilder::SetTraceObject(obj);
0049       fVMMinimizer.Builder().SetTraceObject(obj);
0050       fSimplexMinimizer.Builder().SetTraceObject(obj);
0051    }
0052
0053 private:
0054    VariableMetricMinimizer fVMMinimizer;
0055    SimplexMinimizer fSimplexMinimizer;
0056 };
0057
0058 } // namespace Minuit2
0059
0060 } // namespace ROOT
0061
0062 #endif // ROOT_Minuit2_CombinedMinimumBuilder