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UnBinData.cxx
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1 // @(#)root/mathcore:$Id$
2 // Author: L. Moneta Wed Aug 30 11:10:03 2006
3 
4 /**********************************************************************
5  * *
6  * Copyright (c) 2006 LCG ROOT Math Team, CERN/PH-SFT *
7  * *
8  * *
9  **********************************************************************/
10 
11 // Implementation file for class UnBinData
12 
13 #include "Fit/UnBinData.h"
14 #include "Math/Error.h"
15 
16 #include <cassert>
17 #include <cmath>
18 
19 namespace ROOT {
20 
21  namespace Fit {
22 
23 /*
24 void UnBinData::Initialize(unsigned int maxpoints, unsigned int dim, bool isWeighted ) {
25  // preallocate a data set given size and dimension
26  unsigned int pointSize = (isWeighted) ? dim+1 : dim;
27  if ( (dim != fDim || pointSize != fPointSize) && fDataVector) {
28 // MATH_INFO_MSGVAL("BinData::Initialize"," Reset amd re-initialize with a new fit point size of ",
29 // dim);
30  delete fDataVector;
31  fDataVector = 0;
32  }
33  fDim = dim;
34  fPointSize = pointSize;
35  unsigned int n = fPointSize*maxpoints;
36  if ( n > MaxSize() ) {
37  MATH_ERROR_MSGVAL("UnBinData::Initialize","Invalid data size", n );
38  return;
39  }
40  if (fDataVector)
41  (fDataVector->Data()).resize( fDataVector->Size() + n );
42  else
43  fDataVector = new DataVector( n);
44 }
45 
46 void UnBinData::Resize(unsigned int npoints) {
47  // resize vector to new points
48  if (fDim == 0) return;
49  if ( npoints > MaxSize() ) {
50  MATH_ERROR_MSGVAL("BinData::Resize"," Invalid data size ", npoints );
51  return;
52  }
53  if (fDataVector != 0) {
54  int nextraPoints = npoints - fDataVector->Size()/fPointSize;
55  if (nextraPoints < 0) {
56  // delete extra points
57  (fDataVector->Data()).resize( npoints * fPointSize);
58  }
59  else if (nextraPoints > 0) {
60  // add extra points
61  Initialize(nextraPoints, fDim, IsWeighted() );
62  }
63  else // nextraPoints == 0
64  return;
65  }
66  else // no DataVector create it
67  fDataVector = new DataVector( npoints*fPointSize);
68 }
69 */
70 
71 
72  } // end namespace Fit
73 
74 } // end namespace ROOT
75 
HFit::Fit
TFitResultPtr Fit(FitObject *h1, TF1 *f1, Foption_t &option, const ROOT::Math::MinimizerOptions &moption, const char *goption, ROOT::Fit::DataRange &range)
Definition: HFitImpl.cxx:133
UnBinData.h
Error.h
ROOT
VSD Structures.
Definition: StringConv.hxx:21