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DataOptions.h
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1 // @(#)root/mathcore:$Id$
2 // Author: L. Moneta Wed Aug 30 11:04:59 2006
3 
4 /**********************************************************************
5  * *
6  * Copyright (c) 2006 LCG ROOT Math Team, CERN/PH-SFT *
7  * *
8  * *
9  **********************************************************************/
10 
11 // Header file for class DataOptions
12 
13 #ifndef ROOT_Fit_DataOptions
14 #define ROOT_Fit_DataOptions
15 
16 
17 namespace ROOT {
18 
19  namespace Fit {
20 
21 
22 //___________________________________________________________________________________
23 /**
24  DataOptions : simple structure holding the options on how the data are filled
25 
26  @ingroup FitData
27 */
28 struct DataOptions {
29 
30 
31  /**
32  Default constructor: use the default options
33  */
34  DataOptions () :
35  fIntegral(false),
36  fBinVolume(false),
37  fNormBinVolume(false),
38  fUseEmpty(false),
39  fUseRange(false),
40  fErrors1(false),
41  fExpErrors(false),
42  fCoordErrors(true),
43  fAsymErrors(true)
44  {}
45 
46 
47  bool fIntegral; // use integral of bin content instead of bin center (default is false)
48  bool fBinVolume; // normalize data by the bin volume (it is used in the Poisson likelihood fits)
49  bool fNormBinVolume; // normalize data by a normalized the bin volume ( bin volume divided by a reference value)
50  bool fUseEmpty; // use empty bins (default is false) with a fixed error of 1
51  bool fUseRange; // use the function range when creating the fit data (default is false)
52  bool fErrors1; // use all errors equal to 1, i.e. fit without errors (default is false)
53  bool fExpErrors; // use expected errors from the function and not from the data
54  bool fCoordErrors; // use errors on the x coordinates when available (default is true)
55  bool fAsymErrors; // use asymmetric errors in the value when available, selecting them according to the on sign of residual (default is true)
56 
57 
58 };
59 
60  } // end namespace Fit
61 
62 } // end namespace ROOT
63 
64 
65 #endif /* ROOT_Fit_DataOptions */