adding some cuts for systematic study
[u/mrichter/AliRoot.git] / CORRFW / AliCFDataGrid.cxx
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563113d0 1/* $Id$ */
1e9dad92 2/**************************************************************************
3 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * *
5 * Author: The ALICE Off-line Project. *
6 * Contributors are mentioned in the code where appropriate. *
7 * *
8 * Permission to use, copy, modify and distribute this software and its *
9 * documentation strictly for non-commercial purposes is hereby granted *
10 * without fee, provided that the above copyright notice appears in all *
11 * copies and that both the copyright notice and this permission notice *
12 * appear in the supporting documentation. The authors make no claims *
13 * about the suitability of this software for any purpose. It is *
14 * provided "as is" without express or implied warranty. *
15 **************************************************************************/
563113d0 16//--------------------------------------------------------------------//
17// //
9be0fa4e 18// AliCFDataGrid Class //
563113d0 19// Class to handle observed data and correct them //
20// //
21// -- Author : S.Arcelli //
22// //
9be0fa4e 23// substantially modified by r. vernet //
563113d0 24// //
25//--------------------------------------------------------------------//
26//
27//
9f6be3a2 28#include "TMath.h"
29#include "AliLog.h"
563113d0 30#include "AliCFDataGrid.h"
31
32//____________________________________________________________________
33ClassImp(AliCFDataGrid)
34
35//____________________________________________________________________
36AliCFDataGrid::AliCFDataGrid() :
25488e18 37 AliCFGridSparse(),
563113d0 38 fSelData(-1),
39 fContainer(0x0)
40{
41 //
42 // default constructor
43 //
563113d0 44}
45
46//____________________________________________________________________
fb494025 47AliCFDataGrid::AliCFDataGrid(const Char_t* name, const Char_t* title, const Int_t nVarIn, const Int_t * nBinIn) :
48 AliCFGridSparse(name,title,nVarIn,nBinIn),
563113d0 49 fSelData(-1),
50 fContainer(0x0)
51{
52 //
53 // main constructor
54 //
55 SumW2();// errors saved
56}
fb494025 57
563113d0 58//____________________________________________________________________
616d0493 59AliCFDataGrid::AliCFDataGrid(const Char_t* name, const Char_t* title, const AliCFContainer &c, Int_t step) :
60 AliCFGridSparse(name,title),
61 fSelData(step),
62 fContainer(&c)
63{
64 //
65 // main constructor
66 // assign directly the selection step
67 //
68
69 //simply clones the container's data at specified step
70 fData = (THnSparse*) fContainer->GetGrid(fSelData)->GetGrid()->Clone();
71 SumW2();
72 AliInfo(Form("retrieving measured data from Container %s at selection step %i.",fContainer->GetName(),fSelData));
563113d0 73}
fb494025 74
563113d0 75//____________________________________________________________________
fb494025 76AliCFDataGrid::AliCFDataGrid(const AliCFDataGrid& data) :
77 AliCFGridSparse(data),
563113d0 78 fSelData(-1),
79 fContainer(0x0)
80{
81 //
82 // copy constructor
83 //
84 ((AliCFDataGrid &)data).Copy(*this);
85}
86
87//____________________________________________________________________
88AliCFDataGrid::~AliCFDataGrid()
89{
90 //
91 // destructor
92 //
93}
fb494025 94
563113d0 95//____________________________________________________________________
96AliCFDataGrid &AliCFDataGrid::operator=(const AliCFDataGrid &c)
97{
98 //
99 // assigment operator
100 //
fb494025 101 if (this != &c) c.Copy(*this);
563113d0 102 return *this;
103}
563113d0 104
fb494025 105//____________________________________________________________________
563113d0 106void AliCFDataGrid::ApplyEffCorrection(const AliCFEffGrid &c)
107{
108
109 //
110 // Apply the efficiency correction
111 //
fb494025 112 if (c.GetNVar()!=GetNVar()) {
563113d0 113 AliInfo("Different number of variables, cannot apply correction");
114 return;
115 }
9be0fa4e 116 Divide(&c);
117 AliInfo(Form("correction applied on data grid %s with efficiency %s.",GetName(),c.GetName()));
563113d0 118}
119//____________________________________________________________________
120void AliCFDataGrid::ApplyBGCorrection(const AliCFDataGrid &c)
121{
122
123 //
124 // Apply correction for background
125 //
fb494025 126 if (c.GetNVar()!=GetNVar()) {
563113d0 127 AliInfo("Different number of variables, cannot apply correction");
128 return;
129 }
e8ef142b 130 Add(&c,-1);
9be0fa4e 131 AliInfo(Form("background %s subtracted from data %s.",c.GetName(),GetName()));
563113d0 132}
fb494025 133
563113d0 134//____________________________________________________________________
9be0fa4e 135void AliCFDataGrid::Copy(TObject& c) const
563113d0 136{
137 // copy function
9be0fa4e 138 Copy(c);
139 AliCFDataGrid& target = (AliCFDataGrid &) c;
563113d0 140 target.fContainer=fContainer;
141 target.fSelData=fSelData;
563113d0 142}