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GSLSimAnMinimizer.h
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1// @(#)root/mathmore:$Id$
2// Author: L. Moneta Wed Dec 20 17:16:32 2006
3
4/**********************************************************************
5 * *
6 * Copyright (c) 2006 LCG ROOT Math Team, CERN/PH-SFT *
7 * *
8 * This library is free software; you can redistribute it and/or *
9 * modify it under the terms of the GNU General Public License *
10 * as published by the Free Software Foundation; either version 2 *
11 * of the License, or (at your option) any later version. *
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13 * This library is distributed in the hope that it will be useful, *
14 * but WITHOUT ANY WARRANTY; without even the implied warranty of *
15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU *
16 * General Public License for more details. *
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18 * You should have received a copy of the GNU General Public License *
19 * along with this library (see file COPYING); if not, write *
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24
25// Header file for class GSLSimAnMinimizer
26
27#ifndef ROOT_Math_GSLSimAnMinimizer
28#define ROOT_Math_GSLSimAnMinimizer
29
30
31
32#include "Math/BasicMinimizer.h"
33
34
35#include "Math/IFunctionfwd.h"
36
38
39
40
42
43
44
45
46namespace ROOT {
47
48 namespace Math {
49
50
51
52//_____________________________________________________________________________________
53/**
54 GSLSimAnMinimizer class for minimization using simulated annealing
55 using the algorithm from
56 <A HREF="http://www.gnu.org/software/gsl/manual/html_node/Simulated-Annealing.html">
57 GSL</A>.
58 It implements the ROOT::Minimizer interface and
59 a plug-in (name "GSLSimAn") exists to instantiate this class via the plug-in manager
60
61 @ingroup MultiMin
62*/
64
65public:
66
67 /**
68 Default constructor
69 */
70 GSLSimAnMinimizer (int type = 0);
71
72 /**
73 Destructor (no operations)
74 */
75 virtual ~GSLSimAnMinimizer ();
76
77private:
78 // usually copying is non trivial, so we make this unaccessible
79
80 /**
81 Copy constructor
82 */
84
85 /**
86 Assignment operator
87 */
89 if (this == &rhs) return *this; // time saving self-test
90 return *this;
91 }
92
93public:
94
95
96 /// method to perform the minimization
97 virtual bool Minimize();
98
99 /// number of calls
100 unsigned int NCalls() const;
101
102 /// Get current minimizer options
104
105 /// Get current minimizer option parameteres
106 const GSLSimAnParams & MinimizerParameters() const { return fSolver.Params(); }
107
108
109 /// set new minimizer options
110 virtual void SetOptions(const ROOT::Math::MinimizerOptions & opt);
111
112 /// set new minimizer option parameters using directly the GSLSimAnParams structure
113 void SetParameters(const GSLSimAnParams & params ) { fSolver.SetParams(params); }
114
115protected:
116
117private:
118
119
121
122
123};
124
125 } // end namespace Math
126
127} // end namespace ROOT
128
129
130#endif /* ROOT_Math_GSLSimAnMinimizer */
int type
Definition: TGX11.cxx:120
Base Minimizer class, which defines the basic funcionality of various minimizer implementations (apar...
GSLSimAnMinimizer class for minimization using simulated annealing using the algorithm from GSL.
virtual ~GSLSimAnMinimizer()
Destructor (no operations)
void SetParameters(const GSLSimAnParams &params)
set new minimizer option parameters using directly the GSLSimAnParams structure
GSLSimAnMinimizer(int type=0)
Default constructor.
const GSLSimAnParams & MinimizerParameters() const
Get current minimizer option parameteres.
virtual void SetOptions(const ROOT::Math::MinimizerOptions &opt)
set new minimizer options
ROOT::Math::GSLSimAnnealing fSolver
GSLSimAnMinimizer(const GSLSimAnMinimizer &)
Copy constructor.
unsigned int NCalls() const
number of calls
virtual bool Minimize()
method to perform the minimization
GSLSimAnMinimizer & operator=(const GSLSimAnMinimizer &rhs)
Assignment operator.
virtual ROOT::Math::MinimizerOptions Options() const
Get current minimizer options.
GSLSimAnnealing class for performing a simulated annealing search of a multidimensional function.
void SetParams(const GSLSimAnParams &params)
Namespace for new Math classes and functions.
VSD Structures.
Definition: StringConv.hxx:21
structure holding the simulated annealing parameters