MCParameters.h

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// @(#)root/mathmore:$Id$
// Author: Magdalena Slawinska 08/2007
 
 /**********************************************************************
  *                                                                    *
  * Copyright (c) 2004 ROOT Foundation,  CERN/PH-SFT                   *
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  * This library is free software; you can redistribute it and/or      *
  * modify it under the terms of the GNU General Public License        *
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#ifndef ROOT_Math_MCParameters
#define ROOT_Math_MCParameters
 
#include <stddef.h>   // for size_t
 
namespace ROOT {
namespace Math {
 
 
class IOptions;
 
/**
   structures collecting parameters
   for VEGAS multidimensional integration
   FOr implementation of default parameters see file
   mathmore/src/GSLMCIntegrationWorkspace.h
 
   @ingroup MCIntegration
*/
struct VegasParameters{
   double alpha;
   size_t iterations;
   int stage;
   int mode;
   int verbose;
 
   // constructor of default parameters
   VegasParameters() { SetDefaultValues(); }
 
   // construct from GenAlgoOptions
   // parameter not specified are ignored
   VegasParameters(const ROOT::Math::IOptions & opt);
 
   void SetDefaultValues();
 
   VegasParameters & operator=(const ROOT::Math::IOptions & opt);
 
   /// convert to options (return object is managed by the user)
   ROOT::Math::IOptions * operator() () const;
};
 
 
 
 
/**
   structures collecting parameters
   for MISER multidimensional integration
 
   @ingroup MCIntegration
*/
struct MiserParameters{
   double estimate_frac;
   size_t min_calls;
   size_t min_calls_per_bisection;
   double alpha;
   double dither;
 
   // constructor of default parameters
   // needs dimension since min_calls = 16 * dim
   MiserParameters(size_t dim=10) { SetDefaultValues(dim); }
 
   void SetDefaultValues(size_t dim=10);
 
   // construct from GenAlgoOptions
   // parameter not specified are ignored
   MiserParameters(const ROOT::Math::IOptions & opt, size_t dim = 10);
 
   MiserParameters & operator=(const ROOT::Math::IOptions & opt);
 
   /// convert to options (return object is managed by the user)
   ROOT::Math::IOptions * operator() () const;
 
};
 
struct PlainParameters{
};
 
} // namespace Math
} // namespace ROOT
 
#endif