CLHEP VERSION Reference Documentation
   
CLHEP Home Page     CLHEP Documentation     CLHEP Bug Reports

CLHEP/GenericFunctions/LegendreFit.hh
Go to the documentation of this file.
1 // -*- C++ -*-
2 // $Id: LegendreFit.hh,v 1.2 2003/09/06 14:04:13 boudreau Exp $
3 //---------------------LegendreFit------------------------------------------//
4 // //
5 // Class LegendreFit. This is a fitting function consisting of a super //
6 // position of N legendre polynomials. Cascading fractions and phases are //
7 // the input parameters. Function is normalized to one (on [-1,1]) //
8 // //
9 //--------------------------------------------------------------------------//
10 #ifndef LegendreFit_h
11 #define LegendreFit_h 1
16 namespace Genfun {
17 
22  class LegendreFit : public AbsFunction {
23 
25 
26  public:
27 
28  // Constructor
29  LegendreFit(unsigned int N);
30 
31  // Copy constructor
32  LegendreFit(const LegendreFit &right);
33 
34  // Destructor
35  virtual ~LegendreFit();
36 
37  // Retreive function value
38  virtual double operator ()(double argument) const;
39  virtual double operator ()(const Argument & a) const {return operator() (a[0]);}
40 
41  unsigned int order() const;
42 
43  Parameter *getFraction(unsigned int i);
44  const Parameter *getFraction(unsigned int i) const;
45 
46  Parameter *getPhase(unsigned int i);
47  const Parameter *getPhase(unsigned int i) const;
48 
49  // Gets the coefficients the coefficients of the function which is
50  // Squared to obtain a probability distribution (amplitude)
51  const LegendreCoefficientSet & coefficientsA() const;
52 
53  // Gets the coefficients the coefficients of the function which is
54  // Squared to obtain a probability distribution:
56 
57  // Recompute coefficients from the parameters:
58  void recomputeCoefficients() const;
59 
60 
61  private:
62 
63  // It is illegal to assign an adjustable constant
64  const LegendreFit & operator=(const LegendreFit &right);
65 
66  //
67  const unsigned int N;
68  std::vector <Genfun::Parameter *> fraction;
69  std::vector <Genfun::Parameter *> phase;
70  mutable LegendreCoefficientSet coefA;
71  mutable LegendreCoefficientSet coefASq;
72  mutable ClebschGordanCoefficientSet ClebschGordan;
73 
74  };
75 } // namespace Genfun
76 #include "CLHEP/GenericFunctions/LegendreFit.icc"
77 #endif
a
@ a
Definition: testCategories.cc:125
Parameter.hh
Genfun::AbsFunction
Definition: CLHEP/GenericFunctions/AbsFunction.hh:48
Genfun::LegendreFit::getFraction
Parameter * getFraction(unsigned int i)
AbsFunction.hh
N
the goal is to keep the overall false rejection probability down at the to level For each validated we discuss which of course is by necessity relative timing We take the time for a single random via one of the fastest good and at any rate the ratios will vary by around depending on the processor and memory configuration used A timing for a distribution of units would mean no time used beyond the uniform random Summary Distribution Validated Validation Rejected Past N RandGauss N
Definition: validation.doc:48
LegendreCoefficientSet.hh
Genfun::LegendreFit::order
unsigned int order() const
Genfun::LegendreFit
Definition: CLHEP/GenericFunctions/LegendreFit.hh:22
Genfun::LegendreFit::recomputeCoefficients
void recomputeCoefficients() const
Genfun::Argument
Definition: CLHEP/GenericFunctions/Argument.hh:17
Genfun::LegendreFit::coefficientsASq
const LegendreCoefficientSet & coefficientsASq() const
Genfun::LegendreFit::getPhase
Parameter * getPhase(unsigned int i)
i
long i
Definition: JamesRandomSeeding.txt:27
ClebschGordanCoefficientSet.hh
Genfun::LegendreFit::LegendreFit
LegendreFit(unsigned int N)
Genfun::Parameter
Definition: CLHEP/GenericFunctions/Parameter.hh:35
Genfun::LegendreCoefficientSet
Definition: CLHEP/GenericFunctions/LegendreCoefficientSet.hh:6
Genfun::LegendreFit::operator()
virtual double operator()(double argument) const
Genfun::LegendreFit::coefficientsA
const LegendreCoefficientSet & coefficientsA() const
Genfun::ClebschGordanCoefficientSet
Definition: CLHEP/GenericFunctions/ClebschGordanCoefficientSet.hh:8
FUNCTION_OBJECT_DEF
#define FUNCTION_OBJECT_DEF(classname)
Definition: CLHEP/GenericFunctions/AbsFunction.hh:144
Genfun
Definition: CLHEP/GenericFunctions/Abs.hh:14
Genfun::LegendreFit::~LegendreFit
virtual ~LegendreFit()