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MnParameterScan.h
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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_MnParameterScan
11#define ROOT_Minuit2_MnParameterScan
12
13#include "Minuit2/MnConfig.h"
15
16#include <vector>
17#include <utility>
18
19namespace ROOT {
20
21 namespace Minuit2 {
22
23
24class FCNBase;
25
26/** Scans the values of FCN as a function of one Parameter and retains the
27 best function and Parameter values found.
28 */
29
31
32public:
33
35
36 MnParameterScan(const FCNBase&, const MnUserParameters&, double);
37
39
40// returns pairs of (x,y) points, x=parameter Value, y=function Value of FCN
41 std::vector<std::pair<double, double> > operator()(unsigned int par, unsigned int maxsteps = 41, double low = 0., double high = 0.);
42
43 const MnUserParameters& Parameters() const {return fParameters;}
44 double Fval() const {return fAmin;}
45
46private:
47
48 const FCNBase& fFCN;
50 double fAmin;
51};
52
53 } // namespace Minuit2
54
55} // namespace ROOT
56
57#endif // ROOT_Minuit2_MnParameterScan
Interface (abstract class) defining the function to be minimized, which has to be implemented by the ...
Definition: FCNBase.h:47
Scans the values of FCN as a function of one Parameter and retains the best function and Parameter va...
const MnUserParameters & Parameters() const
std::vector< std::pair< double, double > > operator()(unsigned int par, unsigned int maxsteps=41, double low=0., double high=0.)
MnParameterScan(const FCNBase &, const MnUserParameters &)
API class for the user interaction with the parameters; serves as input to the minimizer as well as o...
VSD Structures.
Definition: StringConv.hxx:21