ROOT   6.14/05 Reference Guide
MinosError.h
Go to the documentation of this file.
1 // @(#)root/minuit2:$Id$
2 // Authors: M. Winkler, F. James, L. Moneta, A. Zsenei 2003-2005
3
4 /**********************************************************************
5  * *
6  * Copyright (c) 2005 LCG ROOT Math team, CERN/PH-SFT *
7  * *
8  **********************************************************************/
9
10 #ifndef ROOT_Minuit2_MinosError
11 #define ROOT_Minuit2_MinosError
12
13 #include "Minuit2/MnCross.h"
14 #include <iostream>
15
16 namespace ROOT {
17
18  namespace Minuit2 {
19
20 //____________________________________________________________________________________
21 /**
22  Class holding the result of Minos (lower and upper values) for a specific parameter
23  */
24
25 class MinosError {
26
27 public:
28
30
31  MinosError(unsigned int par, double min, const MnCross& low, const MnCross& up) : fParameter(par), fMinValue(min), fUpper(up), fLower(low) {}
32
34
36
38  fParameter = err.fParameter;
39  fMinValue = err.fMinValue;
40  fUpper = err.fUpper;
41  fLower = err.fLower;
42  return *this;
43  }
44
45  std::pair<double,double> operator()() const {
46  return std::pair<double,double>(Lower(), Upper());
47  }
48  double Lower() const {
50  return -1.*LowerState().Error(Parameter())*(1. + fLower.Value());
51  }
52  double Upper() const {
54  return UpperState().Error(Parameter())*(1. + fUpper.Value());
55  }
56  unsigned int Parameter() const {return fParameter;}
57  const MnUserParameterState& LowerState() const {return fLower.State();}
58  const MnUserParameterState& UpperState() const {return fUpper.State();}
59  bool IsValid() const {return fLower.IsValid() && fUpper.IsValid();}
60  bool LowerValid() const {return fLower.IsValid();}
61  bool UpperValid() const {return fUpper.IsValid();}
62  bool AtLowerLimit() const {return fLower.AtLimit();}
63  bool AtUpperLimit() const {return fUpper.AtLimit();}
64  bool AtLowerMaxFcn() const {return fLower.AtMaxFcn();}
65  bool AtUpperMaxFcn() const {return fUpper.AtMaxFcn();}
66  bool LowerNewMin() const {return fLower.NewMinimum();}
67  bool UpperNewMin() const {return fUpper.NewMinimum();}
68  unsigned int NFcn() const {return fUpper.NFcn() + fLower.NFcn();}
69  double Min() const {return fMinValue;}
70
71 private:
72
73  unsigned int fParameter;
74  double fMinValue;
77 };
78
79  } // namespace Minuit2
80
81 } // namespace ROOT
82
83 #endif // ROOT_Minuit2_MinosError
MinosError(unsigned int par, double min, const MnCross &low, const MnCross &up)
Definition: MinosError.h:31
unsigned int NFcn() const
Definition: MnCross.h:65
MinosError & operator()(const MinosError &err)
Definition: MinosError.h:37
bool AtLowerMaxFcn() const
Definition: MinosError.h:64
Namespace for new ROOT classes and functions.
Definition: StringConv.hxx:21
bool NewMinimum() const
Definition: MnCross.h:64
bool AtLimit() const
Definition: MnCross.h:62
bool UpperValid() const
Definition: MinosError.h:61
unsigned int fParameter
Definition: MinosError.h:73
bool LowerValid() const
Definition: MinosError.h:60
bool UpperNewMin() const
Definition: MinosError.h:67
const MinuitParameter & Parameter(unsigned int i) const
const MnUserParameterState & State() const
Definition: MnCross.h:60
double Lower() const
Definition: MinosError.h:48
bool AtLowerLimit() const
Definition: MinosError.h:62
bool IsValid() const
Definition: MnCross.h:61
bool AtMaxFcn() const
Definition: MnCross.h:63
bool AtUpperLimit() const
Definition: MinosError.h:63
bool AtUpperMaxFcn() const
Definition: MinosError.h:65
const MnUserParameterState & UpperState() const
Definition: MinosError.h:58
unsigned int Parameter() const
Definition: MinosError.h:56
Class holding the result of Minos (lower and upper values) for a specific parameter.
Definition: MinosError.h:25
class which holds the external user and/or internal Minuit representation of the parameters and error...
MinosError(const MinosError &err)
Definition: MinosError.h:35
double Value() const
Definition: MnCross.h:59
std::pair< double, double > operator()() const
Definition: MinosError.h:45
unsigned int NFcn() const
Definition: MinosError.h:68
const MnUserParameterState & LowerState() const
Definition: MinosError.h:57
double Upper() const
Definition: MinosError.h:52
bool LowerNewMin() const
Definition: MinosError.h:66
double Min() const
Definition: MinosError.h:69