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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 
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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 
37 #include "Math/IParamFunctionfwd.h"
38 
39 
40 
41 #include "Math/GSLSimAnnealing.h"
42 
43 
44 
45 
46 namespace 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 
65 public:
66 
67  /**
68  Default constructor
69  */
70  GSLSimAnMinimizer (int type = 0);
71 
72  /**
73  Destructor (no operations)
74  */
75  virtual ~GSLSimAnMinimizer ();
76 
77 private:
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 
93 public:
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
103  virtual ROOT::Math::MinimizerOptions Options() const;
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 
115 protected:
116 
117 private:
118 
119 
121 
122 
123 };
124 
125  } // end namespace Math
126 
127 } // end namespace ROOT
128 
129 
130 #endif /* ROOT_Math_GSLSimAnMinimizer */
GSLSimAnnealing class for performing a simulated annealing search of a multidimensional function...
const GSLSimAnParams & MinimizerParameters() const
Get current minimizer option parameteres.
Returns the available number of logical cores.
Definition: StringConv.hxx:21
Base Minimizer class, which defines the basic funcionality of various minimizer implementations (apar...
virtual ROOT::Math::MinimizerOptions Options() const
Get current minimizer options.
virtual bool Minimize()
method to perform the minimization
void SetParams(const GSLSimAnParams &params)
GSLSimAnMinimizer class for minimization using simulated annealing using the algorithm from GSL...
void SetParameters(const GSLSimAnParams &params)
set new minimizer option parameters using directly the GSLSimAnParams structure
GSLSimAnMinimizer(const GSLSimAnMinimizer &)
Copy constructor.
virtual void SetOptions(const ROOT::Math::MinimizerOptions &opt)
set new minimizer options
GSLSimAnMinimizer(int type=0)
Default constructor.
int type
Definition: TGX11.cxx:120
virtual ~GSLSimAnMinimizer()
Destructor (no operations)
Namespace for new Math classes and functions.
ROOT::Math::GSLSimAnnealing fSolver
unsigned int NCalls() const
number of calls
GSLSimAnMinimizer & operator=(const GSLSimAnMinimizer &rhs)
Assignment operator.
structure holding the simulated annealing parameters