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Reference Guide
PDEFoamEvent.cxx
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1// @(#)root/tmva $Id$
2// Author: Tancredi Carli, Dominik Dannheim, Alexander Voigt
3
4/**********************************************************************************
5 * Project: TMVA - a Root-integrated toolkit for multivariate data analysis *
6 * Package: TMVA *
7 * Classes: PDEFoamEvent *
8 * Web : http://tmva.sourceforge.net *
9 * *
10 * Description: *
11 * Implementation. *
12 * *
13 * Authors (alphabetical): *
14 * Tancredi Carli - CERN, Switzerland *
15 * Dominik Dannheim - CERN, Switzerland *
16 * S. Jadach - Institute of Nuclear Physics, Cracow, Poland *
17 * Alexander Voigt - TU Dresden, Germany *
18 * Peter Speckmayer - CERN, Switzerland *
19 * *
20 * Copyright (c) 2008, 2010: *
21 * CERN, Switzerland *
22 * MPI-K Heidelberg, Germany *
23 * *
24 * Redistribution and use in source and binary forms, with or without *
25 * modification, are permitted according to the terms listed in LICENSE *
26 * (http://tmva.sourceforge.net/LICENSE) *
27 **********************************************************************************/
28
29/*! \class TMVA::PDEFoamEvent
30\ingroup TMVA
31This PDEFoam variant stores in every cell the sum of event weights
32and the sum of the squared event weights. It therefore acts as
33event density estimator. It should be booked together with the
34PDEFoamEventDensity density estimator, which returns the event
35weight density at a given phase space point during the foam
36build-up.
37*/
38
39#include "TMVA/PDEFoamEvent.h"
40
41#include "TMVA/Event.h"
42#include "TMVA/MsgLogger.h"
43#include "TMVA/PDEFoam.h"
44#include "TMVA/Types.h"
45
46#include "Rtypes.h"
47
48namespace TMVA {
49 class PDEFoamCell;
50}
51class TString;
52
54
55////////////////////////////////////////////////////////////////////////////////
56/// Default constructor for streamer, user should not use it.
57
59: PDEFoam()
60{
61}
62
63////////////////////////////////////////////////////////////////////////////////
64
66 : PDEFoam(name)
67{}
68
69////////////////////////////////////////////////////////////////////////////////
70/// Copy Constructor NOT IMPLEMENTED (NEVER USED)
71
73 : PDEFoam(from)
74{
75 Log() << kFATAL << "COPY CONSTRUCTOR NOT IMPLEMENTED" << Endl;
76}
77
78////////////////////////////////////////////////////////////////////////////////
79/// This function fills an event weight 'wt' into the PDEFoam. Cell
80/// element 0 is filled with the weight 'wt', and element 1 is
81/// filled with the squared weight.
82
84{
85 // find corresponding foam cell
86 std::vector<Float_t> values = ev->GetValues();
87 std::vector<Float_t> tvalues = VarTransform(values);
88 PDEFoamCell *cell = FindCell(tvalues);
89
90 // 0. Element: Sum of event weights 'wt'
91 // 1. Element: Sum of squared event weights 'wt'
92 SetCellElement(cell, 0, GetCellElement(cell, 0) + wt);
93 SetCellElement(cell, 1, GetCellElement(cell, 1) + wt * wt);
94}
float Float_t
Definition: RtypesCore.h:57
#define ClassImp(name)
Definition: Rtypes.h:375
char name[80]
Definition: TGX11.cxx:110
std::vector< Float_t > & GetValues()
Definition: Event.h:94
This PDEFoam variant stores in every cell the sum of event weights and the sum of the squared event w...
Definition: PDEFoamEvent.h:39
PDEFoamEvent()
Default constructor for streamer, user should not use it.
virtual void FillFoamCells(const Event *ev, Float_t wt)
This function fills an event weight 'wt' into the PDEFoam.
Implementation of PDEFoam.
Definition: PDEFoam.h:79
MsgLogger & Log() const
Definition: PDEFoam.h:240
@ kFATAL
Definition: Types.h:61
Basic string class.
Definition: TString.h:136
create variable transformations
MsgLogger & Endl(MsgLogger &ml)
Definition: MsgLogger.h:148