ROOT  6.06/09
Reference Guide
DavidonErrorUpdator.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_DavidonErrorUpdator
11 #define ROOT_Minuit2_DavidonErrorUpdator
12 
13 #ifndef ROOT_Minuit2_MinimumErrorUpdator
15 #endif
16 
17 namespace ROOT {
18 
19  namespace Minuit2 {
20 
21 
22 /**
23  Update of the covariance matrix for the Variable Metric minimizer (MIGRAD)
24  */
26 
27 public:
28 
30 
31  virtual ~DavidonErrorUpdator() {}
32 
33  virtual MinimumError Update(const MinimumState&, const MinimumParameters&,
34  const FunctionGradient&) const;
35 
36 private:
37 
38 };
39 
40  } // namespace Minuit2
41 
42 } // namespace ROOT
43 
44 #endif // ROOT_Minuit2_DavidonErrorUpdator
Namespace for new ROOT classes and functions.
Definition: ROOT.py:1
Update of the covariance matrix for the Variable Metric minimizer (MIGRAD)
virtual MinimumError Update(const MinimumState &, const MinimumParameters &, const FunctionGradient &) const
MinimumError keeps the inv.
Definition: MinimumError.h:26
MinimumState keeps the information (position, Gradient, 2nd deriv, etc) after one minimization step (...
Definition: MinimumState.h:29