2 /**************************************************************************
3 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
5 * Author: The ALICE Off-line Project. *
6 * Contributors are mentioned in the code where appropriate. *
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 **************************************************************************/
16 //--------------------------------------------------------------------//
18 // AliCFEffGrid Class //
19 // Class to handle efficiency grids //
21 // -- Author : S.Arcelli //
25 //--------------------------------------------------------------------//
32 #include "AliCFEffGrid.h"
37 //____________________________________________________________________
38 ClassImp(AliCFEffGrid)
40 //____________________________________________________________________
41 AliCFEffGrid::AliCFEffGrid() :
48 // default constructor
52 //____________________________________________________________________
53 AliCFEffGrid::AliCFEffGrid(const Char_t* name, const Char_t* title, const Int_t nVarIn, const Int_t * nBinIn, const Double_t *binLimitsIn) :
54 AliCFGrid(name,title,nVarIn,nBinIn,binLimitsIn),
64 //____________________________________________________________________
65 AliCFEffGrid::AliCFEffGrid(const Char_t* name, const Char_t* title, const AliCFContainer &c) :
66 AliCFGrid(name,title,c.GetNVar(),c.GetNBins(),c.GetBinLimits()),
75 //assign the container;
78 //____________________________________________________________________
79 AliCFEffGrid::AliCFEffGrid(const AliCFEffGrid& eff) : AliCFGrid(),
87 ((AliCFEffGrid &)eff).Copy(*this);
90 //____________________________________________________________________
91 AliCFEffGrid::~AliCFEffGrid()
98 //____________________________________________________________________
99 AliCFEffGrid &AliCFEffGrid::operator=(const AliCFEffGrid &eff)
102 // assigment operator
105 ((AliCFEffGrid &) eff).Copy(*this);
108 //____________________________________________________________________
110 void AliCFEffGrid::CalculateEfficiency(Int_t istep1,Int_t istep2)
113 // Calculate the efficiency matrix and its error between selection
114 // Steps istep1 and istep2
119 AliCFVGrid *num=fContainer->GetGrid(fSelNum);
120 AliCFVGrid *den=fContainer->GetGrid(fSelDen);
124 this->Divide(num,den,1.,1.,"B");
126 Int_t nEmptyBinsNum=0;
127 Int_t nEmptyBinsNumAndDen=0;
128 for(Int_t iel=0;iel<fNDim;iel++){
129 if(den->GetElement(iel)>0){
130 if(num->GetElement(iel)==0)nEmptyBinsNum++; //num==0,den!=0
133 nEmptyBinsNumAndDen++;
136 // Some monitoring printout:
137 AliInfo(Form("Efficiency calculated for steps %i and %i: %i empty bins in the numerator && !denominator and %i empty bins in numerator && denominator were found.",fSelNum,fSelDen,nEmptyBinsNumAndDen,nEmptyBinsNum));
138 AliInfo(Form("The correction map contains %i empty bins ",nEmptyBinsNum+nEmptyBinsNumAndDen));
140 //_____________________________________________________________________
141 Double_t AliCFEffGrid::GetAverage() const
144 // Get the average efficiency
150 for(Int_t i=0;i<fNDim;i++){
151 valnum+=fContainer->GetGrid(fSelNum)->GetElement(i);
152 valden+=fContainer->GetGrid(fSelDen)->GetElement(i);
154 if(valden>0)val=valnum/valden;
155 AliInfo(Form(" The Average Efficiency = %f ",val));
159 //_____________________________________________________________________
160 Double_t AliCFEffGrid::GetAverage(Double_t *varMin, Double_t* varMax ) const
163 // Get ave efficiency in a range
168 Int_t *indexMin = new Int_t[fNVar];
169 Int_t *indexMax = new Int_t[fNVar];
170 Int_t *index = new Int_t[fNVar];
172 //Find out the min and max bins
174 for(Int_t i=0;i<fNVar;i++){
175 Double_t xmin=varMin[i]; // the min values
176 Double_t xmax=varMax[i]; // the max values
177 Int_t nbins=fNVarBins[i]+1;
178 Double_t *bins=new Double_t[nbins];
179 for(Int_t ibin =0;ibin<nbins;ibin++){
180 bins[ibin] = fVarBinLimits[ibin+fOffset[i]];
182 indexMin[i] = TMath::BinarySearch(nbins,bins,xmin);
183 indexMax[i] = TMath::BinarySearch(nbins,bins,xmax);
184 if(xmax>=bins[nbins-1]){
185 indexMax[i]=indexMax[i]-1;
192 for(Int_t i=0;i<fNDim;i++){
193 for (Int_t j=0;j<fNVar;j++)index[j]=GetBinIndex(j,i);
195 for (Int_t j=0;j<fNVar;j++){
196 if(!(index[j]>=indexMin[j] && index[j]<=indexMax[j]))isIn=kFALSE;
199 valnum+=fContainer->GetGrid(fSelNum)->GetElement(i);
200 valden+=fContainer->GetGrid(fSelDen)->GetElement(i);
206 if(valden>0)val=valnum/valden;
207 AliInfo(Form(" the Average Efficiency = %f ",val));
210 //____________________________________________________________________
211 void AliCFEffGrid::Copy(TObject& eff) const
217 AliCFEffGrid& target = (AliCFEffGrid &) eff;
219 target.fSelNum=fSelNum;
220 target.fSelDen=fSelDen;
222 target.fContainer=fContainer;
224 //___________________________________________________________________
225 TH1D *AliCFEffGrid::Project(Int_t ivar) const
228 // Make a 1D projection along variable ivar
232 Int_t nbins =fNVarBins[ivar];
233 Float_t *bins = new Float_t[nbins+1];
234 for(Int_t ibin =0;ibin<nbins+1;ibin++){
235 bins[ibin] = fVarBinLimits[ibin+fOffset[ivar]];
239 sprintf(pname,"%s%s%i%i%s%i",GetName(),"_SelStep",fSelNum,fSelDen,"_proj1D_var", ivar);
241 sprintf(htitle,"%s%s%i%i%s%i",GetName(),"_SelStep",fSelNum,fSelDen,"_proj1D_var", ivar);
244 proj1D =new TH1D(pname,htitle, nbins, bins);
248 proj1D->Divide(fContainer->GetGrid(fSelNum)->Project(ivar),fContainer->GetGrid(fSelDen)->Project(ivar),1.,1.,"B");
253 //___________________________________________________________________
254 TH2D *AliCFEffGrid::Project(Int_t ivar1,Int_t ivar2) const
257 // Make a 2D projection along variable ivar1,ivar2
262 Int_t nbins1 =fNVarBins[ivar1];
263 Float_t *bins1 = new Float_t[nbins1+1];
264 Int_t nbins2 =fNVarBins[ivar2];
265 Float_t *bins2 = new Float_t[nbins2+1];
266 for(Int_t ibin1 =0;ibin1<nbins1+1;ibin1++){
267 bins1[ibin1] = fVarBinLimits[ibin1+fOffset[ivar1]];
269 for(Int_t ibin2 =0;ibin2<nbins2+1;ibin2++){
270 bins2[ibin2] = fVarBinLimits[ibin2+fOffset[ivar2]];
274 sprintf(pname,"%s%s%i%i%s%i%i",GetName(),"_SelStep",fSelNum,fSelDen,"_proj2D_var", ivar1,ivar2);
276 sprintf(htitle,"%s%s%i%i%s%i%i",GetName(),"_SelStep",fSelNum,fSelDen,"_proj2D_var",ivar1,ivar2);
279 proj2D =new TH2D(pname,htitle, nbins1,bins1,nbins2,bins2);
283 proj2D->Divide(fContainer->GetGrid(fSelNum)->Project(ivar1,ivar2),fContainer->GetGrid(fSelDen)->Project(ivar1,ivar2),1.,1.,"B");
289 //___________________________________________________________________
290 TH3D *AliCFEffGrid::Project(Int_t ivar1, Int_t ivar2, Int_t ivar3) const
293 // Make a 3D projection along variable ivar1,ivar2,ivar3
298 Int_t nbins1 =fNVarBins[ivar1];
299 Int_t nbins2 =fNVarBins[ivar2];
300 Int_t nbins3 =fNVarBins[ivar3];
302 Float_t *bins1 = new Float_t[nbins1+1];
303 Float_t *bins2 = new Float_t[nbins2+1];
304 Float_t *bins3 = new Float_t[nbins3+1];
306 for(Int_t ibin =0;ibin<nbins1+1;ibin++){
307 bins1[ibin] = fVarBinLimits[ibin+fOffset[ivar1]];
309 for(Int_t ibin =0;ibin<nbins2+1;ibin++){
310 bins2[ibin] = fVarBinLimits[ibin+fOffset[ivar2]];
312 for(Int_t ibin =0;ibin<nbins3+1;ibin++){
313 bins3[ibin] = fVarBinLimits[ibin+fOffset[ivar3]];
317 sprintf(pname,"%s%s%i%i%s%i%i%i",GetName(),"_SelStep",fSelNum,fSelDen,"_proj3D_var",ivar1,ivar2,ivar3);
319 sprintf(htitle,"%s%s%i%i%s%i%i%i",GetName(),"_SelStep",fSelNum,fSelDen,"_proj3D_var",ivar1,ivar2,ivar3);
323 proj3D =new TH3D(pname,htitle, nbins1, bins1,nbins2,bins2,nbins3,bins3);
327 proj3D->Divide(fContainer->GetGrid(fSelNum)->Project(ivar1,ivar2,ivar3),fContainer->GetGrid(fSelDen)->Project(ivar1,ivar2,ivar3),1.,1.,"B");