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LatAnalyze/lib/MinuitMinimizer.hpp

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/*
* MinuitMinimizer.hpp, part of LatAnalyze 3
*
* Copyright (C) 2013 - 2016 Antonin Portelli
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*
* LatAnalyze 3 is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* LatAnalyze 3 is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with LatAnalyze 3. If not, see <http://www.gnu.org/licenses/>.
*/
#ifndef Latan_MinuitMinimizer_hpp_
#define Latan_MinuitMinimizer_hpp_
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#include <LatAnalyze/Global.hpp>
#include <LatAnalyze/Function.hpp>
#include <LatAnalyze/Minimizer.hpp>
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BEGIN_LATAN_NAMESPACE
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/******************************************************************************
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* interface to CERN Minuit minimizer (http://www.cern.ch/minuit) *
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******************************************************************************/
class MinuitMinimizer: public Minimizer
{
public:
enum class Algorithm
{
Migrad = 1,
Simplex = 2,
Combined = 3
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};
public:
// constructor
MinuitMinimizer(const Algorithm algorithm = defaultAlg_);
explicit MinuitMinimizer(const Index dim,
const Algorithm algorithm = defaultAlg_);
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// destructor
virtual ~MinuitMinimizer(void) = default;
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// access
Algorithm getAlgorithm(void) const;
void setAlgorithm(const Algorithm algorithm);
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// minimization
virtual const DVec & operator()(const DoubleFunction &f);
private:
Algorithm algorithm_;
static constexpr Algorithm defaultAlg_ = Algorithm::Combined;
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};
END_LATAN_NAMESPACE
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#endif // Latan_MinuitMinimizer_hpp_