CLHEP/GenericFunctions/TrivariateGaussian.hh

0001 // -*- C++ -*-
0002 // $Id: TrivariateGaussian.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
0003 //---------------------TrivariateGaussian-----------------------------------//
0004 //                                                                          //
0005 // Class TrivariateGaussian                                                 //
0006 // Joe Boudreau, Petar Maksimovic, November 1999                            //
0007 //                                                                          //
0008 //--------------------------------------------------------------------------//
0009 #ifndef TrivariateGaussian_h
0010 #define TrivariateGaussian_h 1
0011 #include "CLHEP/GenericFunctions/AbsFunction.hh"
0012 #include "CLHEP/GenericFunctions/Parameter.hh"
0013
0014 namespace Genfun {
0015
0016   /**
0017    * @author
0018    * @ingroup genfun
0019    */
0020   class TrivariateGaussian : public AbsFunction  {
0021
0022     FUNCTION_OBJECT_DEF(TrivariateGaussian)
0023
0024       public:
0025
0026     // Constructor
0027     TrivariateGaussian();
0028
0029     // Copy constructor
0030     TrivariateGaussian(const TrivariateGaussian &right);
0031
0032     // Destructor
0033     virtual ~TrivariateGaussian();
0034
0035     // Retreive function value
0036     virtual double operator ()(double argument) const override;    // Gives an error.
0037     virtual double operator ()(const Argument & a) const override; // Must use this one
0038
0039     // Dimensionality
0040     virtual unsigned int dimensionality() const override;
0041
0042     // Get the mean of the TrivariateGaussian
0043     Parameter & mean0();
0044     const Parameter & mean0() const;
0045     Parameter & mean1();
0046     const Parameter & mean1() const;
0047     Parameter & mean2();
0048     const Parameter & mean2() const;
0049
0050     // Get the sigma of the TrivariateGaussian
0051     Parameter & sigma0();
0052     const Parameter & sigma0() const;
0053     Parameter & sigma1();
0054     const Parameter & sigma1() const;
0055     Parameter & sigma2();
0056     const Parameter & sigma2() const;
0057
0058     // Get the correlation coefficient:
0059     Parameter & corr01();
0060     const Parameter & corr01() const;
0061     Parameter & corr02();
0062     const Parameter & corr02() const;
0063     Parameter & corr12();
0064     const Parameter & corr12() const;
0065
0066
0067   private:
0068
0069     // It is illegal to assign an adjustable constant
0070     const TrivariateGaussian & operator=(const TrivariateGaussian &right);
0071
0072     // Here is the decay constant
0073     Parameter _mean0;
0074     Parameter _mean1;
0075     Parameter _mean2;
0076
0077     // Here is the sigma
0078     Parameter _sigma0;
0079     Parameter _sigma1;
0080     Parameter _sigma2;
0081
0082     // Here is the correlation coefficient:
0083     Parameter _corr01;
0084     Parameter _corr02;
0085     Parameter _corr12;
0086
0087   };
0088 } // namespace Genfun
0089
0090 #endif