1 #include "AliAnaChargedJetResponseMaker.h"
3 #include "TGraphErrors.h"
11 #include "THnSparse.h"
14 #define round(x) ((x)>=0?(long)((x)+0.5):(long)((x)-0.5))
19 ClassImp(AliAnaChargedJetResponseMaker)
21 AliAnaChargedJetResponseMaker::AliAnaChargedJetResponseMaker():
23 fResolutionType(kParam),
38 fResponseMatrixFine(0x0),
41 fPtMaxUnfoldedHigh(-1.),
42 fBinWidthFactorUnfolded(2),
44 fExtraBinsUnfolded(5),
45 fbVariableBinning(kFALSE),
46 fPtMaxUnfVarBinning(0),
53 //--------------------------------------------------------------------------------------------------------------------------------------------------
54 AliAnaChargedJetResponseMaker::AliAnaChargedJetResponseMaker(const AliAnaChargedJetResponseMaker& obj):
56 fResolutionType(obj.fResolutionType),
57 fDeltaPt(obj.fDeltaPt),
58 fhDeltaPt(obj.fhDeltaPt),
59 fDimensions(obj.fDimensions),
65 fBinArrayPtRec(obj.fBinArrayPtRec),
66 fPtMeasured(obj.fPtMeasured),
67 fEffFlat(obj.fEffFlat),
68 fEfficiency(obj.fEfficiency),
69 fEfficiencyFine(obj.fEfficiencyFine),
70 fResponseMatrix(obj.fResponseMatrix),
71 fResponseMatrixFine(obj.fResponseMatrixFine),
72 fPtMinUnfolded(obj.fPtMinUnfolded),
73 fPtMaxUnfolded(obj.fPtMaxUnfolded),
74 fPtMaxUnfoldedHigh(obj.fPtMaxUnfoldedHigh),
75 fBinWidthFactorUnfolded(obj.fBinWidthFactorUnfolded),
76 fSkipBinsUnfolded(obj.fSkipBinsUnfolded),
77 fExtraBinsUnfolded(obj.fExtraBinsUnfolded),
78 fbVariableBinning(obj.fbVariableBinning),
79 fPtMaxUnfVarBinning(obj.fPtMaxUnfVarBinning),
80 f1MergeFunction(obj.f1MergeFunction),
81 fFineFrac(obj.fFineFrac),
82 fbCalcErrors(obj.fbCalcErrors)
85 //--------------------------------------------------------------------------------------------------------------------------------------------------
86 AliAnaChargedJetResponseMaker& AliAnaChargedJetResponseMaker::operator=(const AliAnaChargedJetResponseMaker& other)
89 if(&other == this) return *this;
90 AliAnaChargedJetResponseMaker::operator=(other);
91 fDebug = other.fDebug;
92 fResolutionType = other.fResolutionType;
93 fDeltaPt = other.fDeltaPt;
94 fhDeltaPt = other.fhDeltaPt;
95 fDimensions = other.fDimensions;
96 fDimRec = other.fDimRec;
97 fDimGen = other.fDimGen;
98 fPtMin = other.fPtMin;
99 fPtMax = other.fPtMax;
100 fNbins = other.fNbins;
101 fBinArrayPtRec = other.fBinArrayPtRec;
102 fPtMeasured = other.fPtMeasured;
103 fEffFlat = other.fEffFlat;
104 fEfficiency = other.fEfficiency;
105 fEfficiencyFine = other.fEfficiencyFine;
106 fResponseMatrix = other.fResponseMatrix;
107 fResponseMatrixFine = other.fResponseMatrixFine;
108 fPtMinUnfolded = other.fPtMinUnfolded;
109 fPtMaxUnfolded = other.fPtMaxUnfolded;
110 fPtMaxUnfoldedHigh = other.fPtMaxUnfoldedHigh;
111 fBinWidthFactorUnfolded = other.fBinWidthFactorUnfolded;
112 fSkipBinsUnfolded = other.fSkipBinsUnfolded;
113 fExtraBinsUnfolded = other.fExtraBinsUnfolded;
114 fbVariableBinning = other.fbVariableBinning;
115 fPtMaxUnfVarBinning = other.fPtMaxUnfVarBinning;
116 f1MergeFunction = other.f1MergeFunction;
117 fFineFrac = other.fFineFrac;
118 fbCalcErrors = other.fbCalcErrors;
123 //--------------------------------------------------------------------------------------------------------------------------------------------------
124 void AliAnaChargedJetResponseMaker::SetMeasuredSpectrum(TH1D *hPtMeasured)
127 // Set measured spectrum in THnSparse format
128 // This defines the minimum and maximum pT on the reconstructed axis of the response matrix
130 if(fDebug) printf(">>AliAnaChargedJetResponseMaker::SetMeasuredSpectrum \n");
132 fNbins = hPtMeasured->GetXaxis()->GetNbins();
133 fPtMin = hPtMeasured->GetXaxis()->GetXmin();
134 fPtMax = hPtMeasured->GetXaxis()->GetXmax();
136 if(fDebug) printf("fNbins: %d fPtMin: %f fPtMax: %f \n",fNbins,fPtMin,fPtMax);
138 if(fBinArrayPtRec) delete fBinArrayPtRec;
139 fBinArrayPtRec = new Double_t[fNbins+1];
140 for(int j = 0; j<fNbins; j++) {
141 fBinArrayPtRec[j] = hPtMeasured->GetXaxis()->GetBinLowEdge(j+1);
143 fBinArrayPtRec[fNbins] = hPtMeasured->GetXaxis()->GetBinUpEdge(fNbins);
146 Int_t nbins[fDimensions];
147 Double_t xmin[fDimensions];
148 Double_t xmax[fDimensions];
149 for(int dim = 0; dim<fDimensions; dim++) {
155 if(fPtMeasured) delete fPtMeasured;
156 fPtMeasured = new THnSparseD("fPtMeasured","Measured pT spectrum; p_{T}^{rec}",fDimensions,nbins,xmin,xmax);
157 fPtMeasured->Sumw2();
158 fPtMeasured->GetAxis(0)->SetTitle("p_{T}^{rec}");
159 fPtMeasured->SetBinEdges(0,fBinArrayPtRec);
162 if(fDebug) printf("fill measured THnSparse\n");
163 if(fNbins!=hPtMeasured->GetNbinsX())
164 printf("WARNING: nbins not correct \t %d vs %d !!!\n",fNbins,hPtMeasured->GetNbinsX());
168 for(int i = hPtMeasured->FindBin(fPtMin); i<hPtMeasured->FindBin(fPtMax); i++) {
170 pT[0]= hPtMeasured->GetBinCenter(i);
171 fPtMeasured->SetBinContent(bin,(Double_t)hPtMeasured->GetBinContent(i));
172 fPtMeasured->SetBinError(bin,(Double_t)hPtMeasured->GetBinError(i));
176 if(fDebug) printf("fPtMeasured->GetNbins(): %d \n",(int)fPtMeasured->GetNbins());
180 //--------------------------------------------------------------------------------------------------------------------------------------------------
181 void AliAnaChargedJetResponseMaker::SetFlatEfficiency(Double_t eff) {
184 // Set flat efficiency to value of eff
191 Int_t nbins[fDimensions];
192 Double_t xmin[fDimensions];
193 Double_t xmax[fDimensions];
194 for(int dim = 0; dim<fDimensions; dim++) {
200 if(fEfficiency) delete fEfficiency;
201 fEfficiency = new THnSparseD("fEfficiency","Efficiency - no resolution effects; p_{T}^{gen}",fDimensions,nbins,xmin,xmax);
202 fEfficiency->Sumw2();
203 fEfficiency->GetAxis(0)->SetTitle("p_{T}^{gen}");
204 fEfficiency->SetBinEdges(0,fBinArrayPtRec);
206 for(int i=0; i<fNbins; i++) {
209 fEfficiency->SetBinContent(bin,fEffFlat);
210 fEfficiency->SetBinError(bin,0);
215 //--------------------------------------------------------------------------------------------------------------------------------------------------
216 void AliAnaChargedJetResponseMaker::SetEfficiency(TGraphErrors *grEff)
219 // Fill fEfficiency (THnSparse) with values from grEff
222 Int_t nbins[fDimensions];
223 Double_t xmin[fDimensions];
224 Double_t xmax[fDimensions];
225 for(int dim = 0; dim<fDimensions; dim++) {
231 if(fEfficiency) delete fEfficiency;
232 fEfficiency = new THnSparseD("fEfficiency","Efficiency - no resolution effects; p_{T}^{gen}",fDimensions,nbins,xmin,xmax);
233 fEfficiency->Sumw2();
234 fEfficiency->GetAxis(0)->SetTitle("p_{T}^{gen}");
235 fEfficiency->SetBinEdges(0,fBinArrayPtRec);
241 int nbinsgr = grEff->GetN();
243 for(int i=0; i<nbinsgr; i++) {
244 grEff->GetPoint(i,dummy,yield);
246 error = grEff->GetErrorY(i);
248 fEfficiency->Fill(pT,yield);
249 fEfficiency->SetBinError(i,error);
255 //--------------------------------------------------------------------------------------------------------------------------------------------------
256 void AliAnaChargedJetResponseMaker::MakeResponseMatrixJetsFineMerged(Int_t skipBins, Int_t binWidthFactor, Int_t extraBins, Bool_t bVariableBinning, Double_t ptmax)
259 // Make jet response matrix
262 if(fDebug) printf(">>AliAnaChargedJetResponseMaker::MakeResponseMatrixJetsFineMerged\n");
265 if(fDebug) printf("fPtMeasured does not exist. Aborting!!\n");
268 if(fResponseMatrix) { delete fResponseMatrix; }
269 if(fResponseMatrixFine) { delete fResponseMatrixFine; }
271 SetSkipBinsUnfolded(skipBins);
272 SetBinWidthFactorUnfolded(binWidthFactor);
273 SetExtraBinsUnfolded(extraBins);
274 SetVariableBinning(bVariableBinning,ptmax);
276 InitializeResponseMatrix();
277 InitializeEfficiency();
279 InitializeResponseMatrixFine();
280 InitializeEfficiencyFine();
282 FillResponseMatrixFineAndMerge();
286 //--------------------------------------------------------------------------------------------------------------------------------------------------
287 void AliAnaChargedJetResponseMaker::InitializeResponseMatrix() {
289 //Define bin edges of RM to be used for unfolding
292 Int_t nbins[fDimensions*2];
293 nbins[fDimRec] = fNbins;
294 nbins[fDimGen] = fNbins;
296 double binWidthMeas = (double)((fPtMax-fPtMin)/fNbins);
297 double binWidthUnf = (double)fBinWidthFactorUnfolded*binWidthMeas;
298 double binWidthUnfLowPt = -1.;
299 if(fbVariableBinning)
300 binWidthUnfLowPt = binWidthUnf*0.5;
302 if(fExtraBinsUnfolded>0) {
303 fPtMaxUnfolded = fPtMax+(double)(fExtraBinsUnfolded)*binWidthUnf;
304 nbins[fDimGen]+=fExtraBinsUnfolded;
307 printf("fPtMinMeas: %f fPtMaxMeas: %f\n",fPtMin,fPtMax);
308 printf("binWidthMeas: %f binWidthUnf: %f fBinWidthFactorUnfolded: %d\n",binWidthMeas,binWidthUnf,fBinWidthFactorUnfolded);
309 printf("binWidthUnfLowPt: %f\n",binWidthUnfLowPt);
311 printf("fPtMinUnfolded: %f fPtMaxUnfolded: %f\n",fPtMinUnfolded,fPtMaxUnfolded);
314 if(fbVariableBinning) {
315 // cout << "fPtMaxUnfVarBinning: " << fPtMaxUnfVarBinning << " \tfPtMinUnfolded: " << fPtMinUnfolded << " binWidthUnfLowPt: " << binWidthUnfLowPt << endl;
316 Int_t tmp = (int)((fPtMaxUnfVarBinning-fPtMinUnfolded)/binWidthUnfLowPt);
317 tmp = tmp - fSkipBinsUnfolded;
318 fPtMinUnfolded = fPtMaxUnfVarBinning-(double)(tmp)*binWidthUnfLowPt;
319 //cout << "tmp = " << tmp << " fSkipBinsUnfolded = " << fSkipBinsUnfolded << " fPtMinUnfolded = " << fPtMinUnfolded << endl;
320 //Redefine also number of bins on generated axis in case of variable binning
321 nbins[fDimGen] = (int)((fPtMaxUnfVarBinning-fPtMinUnfolded)/binWidthUnfLowPt)+(int)((fPtMaxUnfolded-fPtMaxUnfVarBinning)/binWidthUnf);
324 int tmp = round((fPtMaxUnfolded-fPtMinUnfolded)/binWidthUnf); //nbins which fit between 0 and fPtMaxUnfolded
325 tmp = tmp - fSkipBinsUnfolded;
326 fPtMinUnfolded = fPtMaxUnfolded-(double)(tmp)*binWidthUnf; //set ptmin unfolded
327 fPtMaxUnfolded = fPtMinUnfolded+(double)(tmp)*binWidthUnf; //set ptmax unfolded
328 nbins[fDimGen] = (int)((fPtMaxUnfolded-fPtMinUnfolded)/binWidthUnf); //adjust nbins to bin width
331 printf(" nbins[fDimGen] = %d nbins[fDimRec] = %d\n",nbins[fDimGen],nbins[fDimRec]);
333 Double_t binWidth[2];
334 binWidth[fDimRec] = (double)((fPtMax-fPtMin)/nbins[fDimRec]);
335 binWidth[fDimGen] = (double)((fPtMaxUnfolded-fPtMinUnfolded)/nbins[fDimGen]);
337 Double_t xmin[fDimensions*2];
338 Double_t xmax[fDimensions*2];
339 xmin[fDimRec] = fPtMin;
340 xmax[fDimRec] = fPtMax;
341 xmin[fDimGen] = fPtMinUnfolded;
342 xmax[fDimGen] = fPtMaxUnfolded;
344 printf("xmin[fDimRec]: %f xmin[fDimGen]: %f \n",xmin[fDimRec],xmin[fDimGen]);
345 printf("xmax[fDimRec]: %f xmax[fDimGen]: %f \n",xmax[fDimRec],xmax[fDimGen]);
346 printf("nbins[fDimRec]: %d nbins[fDimGen]: %d \n",nbins[fDimRec],nbins[fDimGen]);
347 if(!fbVariableBinning) printf("binWidth[fDimRec]: %f binWidth[fDimGen]: %f \n",binWidth[fDimRec],binWidth[fDimGen]);
349 Double_t binArrayPt0[nbins[fDimRec]+1];
350 Double_t binArrayPt1[nbins[fDimGen]+1];
351 Double_t xmaxGen = TMath::Max(xmax[fDimGen],fPtMaxUnfoldedHigh);
353 //Define bin limits reconstructed/measured axis
354 for(int i=0; i<nbins[fDimRec]; i++) {
355 binArrayPt0[i] = xmin[fDimRec]+(double)i*binWidth[fDimRec];
357 binArrayPt0[nbins[fDimRec]]= xmax[fDimRec];
359 //Define bin limits generated/unfolded axis
360 binArrayPt1[0] = fPtMinUnfolded;
361 for(int i=1; i<nbins[fDimGen]; i++) {
362 if(fbVariableBinning) {
363 double test = xmin[fDimGen]+(double)i*binWidthUnfLowPt;
364 if(test<=fPtMaxUnfVarBinning) binArrayPt1[i] = test;
365 else binArrayPt1[i] = binArrayPt1[i-1]+binWidthUnf;
368 binArrayPt1[i] = xmin[fDimGen]+(double)i*binWidth[fDimGen];
369 //printf("RM. i = %d \t binArrayPt[i] = %f \n",i,binArrayPt1[i]);
371 binArrayPt1[nbins[fDimGen]]= xmaxGen;
374 // Response matrix : dimensions must be 2N = 2 x (number of variables)
375 // dimensions 0 -> N-1 must be filled with reconstructed values
376 // dimensions N -> 2N-1 must be filled with generated values
377 if(fResponseMatrix) delete fResponseMatrix;
378 fResponseMatrix = new THnSparseD("fResponseMatrix","Response Matrix pTMC vs pTrec",fDimensions*2,nbins,xmin,xmax);
379 fResponseMatrix->Sumw2();
380 fResponseMatrix->GetAxis(fDimRec)->SetTitle("p_{T}^{rec}");
381 fResponseMatrix->GetAxis(fDimGen)->SetTitle("p_{T}^{gen}");
383 fResponseMatrix->SetBinEdges(fDimRec,binArrayPt0);
384 fResponseMatrix->SetBinEdges(fDimGen,binArrayPt1);
386 Int_t bin[2] = {1,1};
387 for(int i=1; i<fResponseMatrix->GetAxis(0)->GetNbins(); i++) {
389 for(int j=1; j<fResponseMatrix->GetAxis(1)->GetNbins(); j++) {
391 fResponseMatrix->SetBinContent(bin,0.);
399 //--------------------------------------------------------------------------------------------------------------------------------------------------
400 void AliAnaChargedJetResponseMaker::InitializeEfficiency() {
402 // Define dimensions of efficiency THnSparse
405 if(!fResponseMatrix) {
406 printf("AliAnaChargedJetResponseMaker::InitializeEfficiency()\n");
407 printf("Can not define dimensions efficiency without fResponseMatrix dimensions. Aborting \n");
411 TAxis *genAxis = fResponseMatrix->GetAxis(fDimGen);
413 Int_t nbinsEff[fDimensions];
414 Double_t xminEff[fDimensions];
415 Double_t xmaxEff[fDimensions];
417 for(int dim = 0; dim<fDimensions; dim++) {
418 nbinsEff[dim] = genAxis->GetNbins();
419 xminEff[dim] = genAxis->GetXmin();
420 xmaxEff[dim] = genAxis->GetXmax();
423 if(fEfficiency) delete fEfficiency;
424 fEfficiency = new THnSparseD("fEfficiency","Efficiency - no resolution effects; p_{T}^{gen}",fDimensions,nbinsEff,xminEff,xmaxEff);
425 fEfficiency->Sumw2();
426 fEfficiency->GetAxis(0)->SetTitle("p_{T}^{gen}");
428 const Double_t *binArrayPt = genAxis->GetXbins()->GetArray();
429 fEfficiency->SetBinEdges(0,binArrayPt);
433 //--------------------------------------------------------------------------------------------------------------------------------------------------
434 void AliAnaChargedJetResponseMaker::InitializeResponseMatrixFine() {
436 //Initialize fine response matrix
439 Int_t nbinsFine[fDimensions*2];
440 Double_t xminFine[fDimensions*2];
441 Double_t xmaxFine[fDimensions*2];
442 Double_t pTarrayFine[fDimensions*2];
444 nbinsFine[fDimRec] = fResponseMatrix->GetAxis(fDimRec)->GetNbins()*fFineFrac;
445 nbinsFine[fDimGen] = fResponseMatrix->GetAxis(fDimRec)->GetNbins()*fFineFrac;
446 xminFine[fDimRec] = TMath::Min(fPtMin,0.);
447 xminFine[fDimGen] = TMath::Min(fPtMin,0.);
448 xmaxFine[fDimRec] = fResponseMatrix->GetAxis(fDimGen)->GetXmax()+40.;
449 xmaxFine[fDimGen] = fResponseMatrix->GetAxis(fDimGen)->GetXmax()+40.;
450 pTarrayFine[fDimRec] = 0.;
451 pTarrayFine[fDimGen] = 0.;
453 Double_t binWidth[2];
454 binWidth[fDimRec] = fResponseMatrix->GetAxis(fDimRec)->GetBinWidth(1);
456 Double_t binWidthFine[2];
457 binWidthFine[fDimRec] = binWidth[fDimRec]/((double)fFineFrac);
458 binWidthFine[fDimGen] = binWidthFine[fDimRec]*(double)fBinWidthFactorUnfolded;
460 nbinsFine[fDimRec] = (int)((xmaxFine[fDimRec]-xminFine[fDimRec])/binWidthFine[fDimRec]); //adjust nbins to bin width
461 nbinsFine[fDimGen] = (int)((xmaxFine[fDimGen]-xminFine[fDimGen])/binWidthFine[fDimGen]); //adjust nbins to bin width
463 printf("xminFine[fDimRec]: %f xminFine[fDimGen]: %f \n",xminFine[fDimRec],xminFine[fDimGen]);
464 printf("xmaxFine[fDimRec]: %f xmaxFine[fDimGen]: %f \n",xmaxFine[fDimRec],xmaxFine[fDimGen]);
465 printf("nbinsFine[fDimRec]: %d nbinsFine[fDimGen]: %d \n",nbinsFine[fDimRec],nbinsFine[fDimGen]);
466 printf("binWidthFine[fDimRec]: %f binWidthFine[fDimGen]: %f \n",binWidthFine[fDimRec],binWidthFine[fDimGen]);
469 Double_t binArrayPt0Fine[nbinsFine[fDimRec]+1];
470 Double_t binArrayPt1Fine[nbinsFine[fDimGen]+1];
472 for(int i=0; i<nbinsFine[fDimRec]; i++) {
473 binArrayPt0Fine[i] = xminFine[fDimRec]+(double)i*binWidthFine[fDimRec];
474 // printf("RM. i = %d \t binArrayPtFine[i] = %f \n",i,binArrayPt0Fine[i]);
476 binArrayPt0Fine[nbinsFine[fDimRec]]= xmaxFine[fDimRec];
478 for(int i=0; i<nbinsFine[fDimGen]; i++) {
479 binArrayPt1Fine[i] = xminFine[fDimGen]+(double)i*binWidthFine[fDimGen];
480 // printf("RM. i = %d \t binArrayPtFine[i] = %f \n",i,binArrayPt1Fine[i]);
482 binArrayPt1Fine[nbinsFine[fDimGen]]= xmaxFine[fDimGen];
484 // Response matrix : dimensions must be 2N = 2 x (number of variables)
485 // dimensions 0 -> N-1 must be filled with reconstructed values
486 // dimensions N -> 2N-1 must be filled with generated values
487 if(fResponseMatrixFine) delete fResponseMatrixFine;
488 fResponseMatrixFine = new THnSparseD("fResponseMatrixFine","Response Matrix pTMC vs pTrec",fDimensions*2,nbinsFine,xminFine,xmaxFine);
489 fResponseMatrixFine->Sumw2();
490 fResponseMatrixFine->GetAxis(fDimRec)->SetTitle("p_{T}^{rec}");
491 fResponseMatrixFine->GetAxis(fDimGen)->SetTitle("p_{T}^{gen}");
493 fResponseMatrixFine->SetBinEdges(fDimRec,binArrayPt0Fine);
494 fResponseMatrixFine->SetBinEdges(fDimGen,binArrayPt1Fine);
496 Int_t bin[2] = {1,1};
497 for(int i=1; i<fResponseMatrixFine->GetAxis(0)->GetNbins(); i++) {
499 for(int j=1; j<fResponseMatrixFine->GetAxis(1)->GetNbins(); j++) {
501 fResponseMatrixFine->SetBinContent(bin,0.);
507 //--------------------------------------------------------------------------------------------------------------------------------------------------
508 void AliAnaChargedJetResponseMaker::InitializeEfficiencyFine() {
510 // Define dimensions of efficiency THnSparse
513 if(!fResponseMatrixFine) {
514 printf("AliAnaChargedJetResponseMaker::InitializeEfficiencyFine()\n");
515 printf("Can not define dimensions efficiency without fResponseMatrixFine dimensions. Aborting \n");
519 TAxis *genAxis = fResponseMatrixFine->GetAxis(fDimGen);
521 Int_t nbinsEff[fDimensions];
522 Double_t xminEff[fDimensions];
523 Double_t xmaxEff[fDimensions];
525 for(int dim = 0; dim<fDimensions; dim++) {
526 nbinsEff[dim] = genAxis->GetNbins();
527 xminEff[dim] = genAxis->GetXmin();
528 xmaxEff[dim] = genAxis->GetXmax();
531 if(fEfficiencyFine) delete fEfficiencyFine;
532 fEfficiencyFine = new THnSparseD("fEfficiencyFine","EfficiencyFine - no resolution effects; p_{T}^{gen}",fDimensions,nbinsEff,xminEff,xmaxEff);
533 fEfficiencyFine->Sumw2();
534 fEfficiencyFine->GetAxis(0)->SetTitle("p_{T}^{gen}");
536 const Double_t *binArrayPt = genAxis->GetXbins()->GetArray();
537 fEfficiencyFine->SetBinEdges(0,binArrayPt);
541 //--------------------------------------------------------------------------------------------------------------------------------------------------
542 void AliAnaChargedJetResponseMaker::FillResponseMatrixFineAndMerge() {
544 // Fill fine response matrix
547 if(!fResponseMatrix) {
548 printf("Dimensions of fResponseMatrix have to be defined first. Aborting!");
552 if(!fResponseMatrixFine) {
553 printf("Dimensions of fResponseMatrixFine have to be defined first. Aborting!");
557 TAxis *genAxis = fResponseMatrixFine->GetAxis(fDimGen);
558 TAxis *recAxis = fResponseMatrixFine->GetAxis(fDimRec);
560 Int_t nbinsFine[fDimensions*2];
561 Double_t xminFine[fDimensions*2];
562 Double_t xmaxFine[fDimensions*2];
563 Double_t pTarrayFine[fDimensions*2];
565 nbinsFine[fDimGen] = genAxis->GetNbins();
566 nbinsFine[fDimRec] = recAxis->GetNbins();
567 xminFine[fDimGen] = genAxis->GetXmin();
568 xminFine[fDimRec] = recAxis->GetXmin();
569 xmaxFine[fDimGen] = genAxis->GetXmax();
570 xmaxFine[fDimRec] = recAxis->GetXmax();
571 pTarrayFine[fDimGen] = 0.;
572 pTarrayFine[fDimRec] = 0.;
574 double sumyield = 0.;
575 double sumyielderror2 = 0.;
577 int ipt[2] = {0.,0.};
578 int iptMerged[2] = {0.,0.};
579 int ierror[2] = {0.,0.};
582 Double_t pTgen, pTrec;
586 const int nng = fResponseMatrix->GetAxis(fDimGen)->GetNbins();
587 const int nnr = fResponseMatrix->GetAxis(fDimRec)->GetNbins();
588 Double_t errorArray[nng][nnr];
589 for(int iig =0; iig<nng; iig++) {
590 for(int iir =0; iir<nnr; iir++) {
591 errorArray[iig][iir] = 0.;
595 for(int iy=1; iy<=nbinsFine[fDimGen]; iy++) { //gen
596 pTgen = fResponseMatrixFine->GetAxis(fDimGen)->GetBinCenter(iy);
597 pTarrayFine[fDimGen] = pTgen;
602 for(int ix=1; ix<=nbinsFine[fDimRec]; ix++) { //rec
603 pTrec = fResponseMatrixFine->GetAxis(fDimRec)->GetBinCenter(ix);
604 Double_t width = fResponseMatrixFine->GetAxis(fDimRec)->GetBinWidth(ix);
605 if(fResolutionType==kParam) {
606 yield = fDeltaPt->Eval(pTrec-pTgen);
609 else if(fResolutionType==kResiduals) {
610 yield = fhDeltaPt->Interpolate(pTrec-pTgen);
613 else if(fResolutionType==kResidualsErr) {
614 Double_t deltaPt = pTrec-pTgen;
615 int bin = fhDeltaPt->FindBin(deltaPt);
616 yield = fhDeltaPt->GetBinContent(bin);
617 error = fhDeltaPt->GetBinError(bin);
621 //avoid trouble with empty bins in the high pT tail of deltaPt distribution
622 if(check==0 && yield>0. && pTrec>pTgen) check=1;
623 if(check==1 && yield==0.) ix=nbinsFine[fDimRec];
626 sumyielderror2 += error*error;
628 pTarrayFine[fDimRec] = pTrec;
629 ierror[fDimRec] = ix;
630 fResponseMatrixFine->Fill(pTarrayFine,yield);
631 if(fbCalcErrors) fResponseMatrixFine->SetBinError(ierror,error);
635 //Normalize to total number of counts =1
638 for(int ix=1; ix<=nbinsFine[fDimRec]; ix++) {
640 fResponseMatrixFine->SetBinContent(ipt,fResponseMatrixFine->GetBinContent(ipt)/sumyield);
641 if(fResolutionType==kResidualsErr && fbCalcErrors) {
642 Double_t A = 1./sumyield*fResponseMatrix->GetBinError(ipt);
643 Double_t B = -1.*fResponseMatrix->GetBinContent(ipt)/sumyield/sumyield*TMath::Sqrt(sumyielderror2);
644 Double_t tmp2 = A*A + B*B;
645 fResponseMatrix->SetBinError(ipt,TMath::Sqrt(tmp2));
653 fEfficiencyFine->SetBinContent(bin,sumyield);
654 if(fbCalcErrors) fEfficiencyFine->SetBinError(bin,TMath::Sqrt(sumyielderror2));
656 //fill merged response matrix
658 //find bin in fine RM correspoinding to mimimum/maximum bin of merged RM on rec axis
659 int ixMin = fResponseMatrixFine->GetAxis(fDimRec)->FindBin(fResponseMatrix->GetAxis(fDimRec)->GetXmin());
660 int ixMax = fResponseMatrixFine->GetAxis(fDimRec)->FindBin(fResponseMatrix->GetAxis(fDimRec)->GetXmax());
662 if(fResponseMatrixFine->GetAxis(fDimGen)->GetBinLowEdge(iy) >= fResponseMatrix->GetAxis(fDimGen)->GetXmin()) {
664 iptMerged[fDimGen]=fResponseMatrix->GetAxis(fDimGen)->FindBin(pTgen);
666 Double_t weight = 1.;
667 if(f1MergeFunction) {
668 Double_t loEdge = fResponseMatrix->GetAxis(fDimGen)->GetBinLowEdge(iptMerged[fDimGen]);
669 Double_t upEdge = fResponseMatrix->GetAxis(fDimGen)->GetBinUpEdge(iptMerged[fDimGen]);
670 Float_t powInteg = f1MergeFunction->Integral(loEdge,upEdge);
671 //printf("loEdge = %f upEdge = %f powInteg = %f\n",loEdge,upEdge,powInteg);
673 weight = f1MergeFunction->Integral(fResponseMatrixFine->GetAxis(fDimGen)->GetBinLowEdge(iy),fResponseMatrixFine->GetAxis(fDimGen)->GetBinUpEdge(iy))/powInteg;
674 // printf("weight: %f \n", weight );
676 weight = 1./((double)fFineFrac);
677 if(fbVariableBinning && pTgen<fPtMaxUnfVarBinning) weight=1./(0.5*(double)fFineFrac);
680 for(int ix=ixMin; ix<=ixMax; ix++) { //loop reconstructed axis
681 pTrec = fResponseMatrixFine->GetAxis(fDimRec)->GetBinCenter(ix);
683 iptMerged[fDimRec]=fResponseMatrix->GetAxis(fDimRec)->FindBin(pTrec);
685 fResponseMatrix->AddBinContent(iptMerged,fResponseMatrixFine->GetBinContent(ipt)*weight);
686 if(fbCalcErrors) errorArray[iptMerged[fDimGen]-1][iptMerged[fDimRec]-1] += fResponseMatrixFine->GetBinError(ipt)*fResponseMatrixFine->GetBinError(ipt)*weight*weight;
689 }//loop gen axis fine response matrix
691 } // iy (dimGen) loop
693 //Fill Efficiency corresponding to merged response matrix
694 for(int iy=1; iy<=fResponseMatrix->GetAxis(fDimGen)->GetNbins(); iy++) { //gen
698 for(int ix=1; ix<=fResponseMatrix->GetAxis(fDimRec)->GetNbins(); ix++) { //rec
700 sumyield += fResponseMatrix->GetBinContent(ipt);
702 if(fbCalcErrors) fResponseMatrix->SetBinError(ipt,TMath::Sqrt(errorArray[iy][ix]));
704 printf("RM: pTgen: %f \t sumyield: %f \n",fResponseMatrix->GetAxis(fDimGen)->GetBinCenter(iy),sumyield);
707 fEfficiency->SetBinContent(bin,sumyield);
708 if(fbCalcErrors) fEfficiency->SetBinError(bin,0);
711 if(fDebug) printf("fResponseMatrixFine->GetNbins(): %d \n",(int)fResponseMatrixFine->GetNbins());
712 if(fDebug) printf("fResponseMatrix->GetNbins(): %d \n",(int)fResponseMatrix->GetNbins());
714 if(fDebug) printf("Done constructing response matrix\n");
718 //--------------------------------------------------------------------------------------------------------------------------------------------------
719 TH2* AliAnaChargedJetResponseMaker::MakeResponseMatrixRebin(TH2 *hRMFine, TH2 *hRM) {
722 // Rebin matrix hRMFine to dimensions of hRM
723 // function returns matrix in TH2D format with dimensions from hRM
726 TH2 *hRM2 = (TH2*)hRM->Clone("hRM2");
729 //First normalize columns of input
730 const Int_t nbinsNorm = hRM2->GetNbinsX();
731 cout << "nbinsNorm: " << nbinsNorm << endl;
733 TArrayF *normVector = new TArrayF(nbinsNorm);
735 for(int ix=1; ix<=hRM2->GetNbinsX(); ix++) {
736 Double_t xLow = hRM2->GetXaxis()->GetBinLowEdge(ix);
737 Double_t xUp = hRM2->GetXaxis()->GetBinUpEdge(ix);
738 //cout << "xLow: " << xLow << " xUp: " << xUp << "\t center: " << hRM2->GetXaxis()->GetBinCenter(ix) << endl;
739 Int_t binxLowFine = hRMFine->GetXaxis()->FindBin(xLow);
740 Int_t binxUpFine = hRMFine->GetXaxis()->FindBin(xUp)-1;
741 //cout << "xLowFine: " << hRMFine->GetXaxis()->GetBinLowEdge(binxLowFine) << "\txUpFine: " << hRMFine->GetXaxis()->GetBinUpEdge(binxUpFine) << endl;
742 normVector->SetAt(hRMFine->Integral(binxLowFine,binxUpFine,1,hRMFine->GetYaxis()->GetNbins()),ix-1);
743 // if(fDebug) cout << "ix norm: " << normVector->At(ix-1) << endl;
746 Double_t content, oldcontent = 0.;
749 Double_t xvalLo, xvalUp, yvalLo, yvalUp;
750 Double_t xmin = hRM2->GetXaxis()->GetXmin();
751 Double_t ymin = hRM2->GetYaxis()->GetXmin();
752 Double_t xmax = hRM2->GetXaxis()->GetXmax();
753 Double_t ymax = hRM2->GetYaxis()->GetXmax();
754 for(int ix=1; ix<=hRMFine->GetXaxis()->GetNbins(); ix++) {
755 xvalLo = hRMFine->GetXaxis()->GetBinLowEdge(ix);
756 xvalUp = hRMFine->GetXaxis()->GetBinUpEdge(ix);
757 if(xvalLo<xmin || xvalUp>xmax) continue;
758 ixNew = hRM2->GetXaxis()->FindBin(hRMFine->GetXaxis()->GetBinCenter(ix));
759 for(int iy=1; iy<=hRMFine->GetYaxis()->GetNbins(); iy++) {
760 yvalLo = hRMFine->GetYaxis()->GetBinLowEdge(iy);
761 yvalUp = hRMFine->GetYaxis()->GetBinUpEdge(iy);
762 if(yvalLo<ymin || yvalUp>ymax) continue;
763 content = hRMFine->GetBinContent(ix,iy);
764 iyNew = hRM2->GetYaxis()->FindBin(hRMFine->GetYaxis()->GetBinCenter(iy));
765 oldcontent = hRM2->GetBinContent(ixNew,iyNew);
767 //if(fDebug) cout << "ixNew: " << ixNew << " " << xvalLo << " iyNew: " << iyNew << " " << yvalLo << " content: " << content << " oldContent: " << oldcontent << " newContent: " << oldcontent+content << endl;
768 Double_t weight = 1.;
769 if(normVector->At(ixNew-1)>0.) weight = 1./normVector->At(ixNew-1);
770 hRM2->SetBinContent(ixNew,iyNew,oldcontent+content*weight);
774 if(normVector) delete normVector;
780 //--------------------------------------------------------------------------------------------------------------------------------------------------
781 TH2* AliAnaChargedJetResponseMaker::MultiplityResponseMatrices(TH2 *h2RMDeltaPt, TH2 *h2RMDetector) {
784 // Make combined response matrix (background flucutuations + detector effects)
786 // hRMDeltaPt is the response matrix for background fluctuations from \delta(p_t) measurement
787 // hRMDetector is the response matrix for detector effects: needs to be a squared matrix with on each axis the same bins as on the generated axis of the bkg fluctuations response matrix
789 // Function assumes that generated/unfolded axis is x-axis and reconstructed is on y-axis on both respone matrices
792 TH2D *h2ResponseMatrixCombined = (TH2D*)h2RMDeltaPt->Clone("h2ResponseMatrixCombined"); //h2ResponseMatrix is the bkg fluctuations RM which has the dimensions we want for the combined response matrix
793 h2ResponseMatrixCombined->SetTitle("h2ResponseMatrixCombined");
794 h2ResponseMatrixCombined->SetName("h2ResponseMatrixCombined");
796 // M = RM_deltaPt * RM_DetEffects * T (M=measured T=truth)
798 // mx1 = mxd * dxt * tx1
801 // d = rec for RM_DetEffects and gen for RM_deltaPt
802 // RM_comb = RM_deltaPt * RM_DetEffects (dimensions mxt)
803 // RM_comb(m,t) = Sum_d RM_deltaPt(m,d)*RM_DetEffects(d,t)
806 printf("Nt=%d",h2ResponseMatrixCombined->GetNbinsX());
807 printf("Nm=%d",h2ResponseMatrixCombined->GetNbinsY());
808 printf("Nd=%d",h2RMDetector->GetNbinsX());
811 for(Int_t t=1; t<=h2ResponseMatrixCombined->GetNbinsX();t++) {
812 for(Int_t m=1; m<=h2ResponseMatrixCombined->GetNbinsY();m++) {
813 Double_t valueSum = 0.;
814 for(Int_t d=1; d<=h2RMDeltaPt->GetNbinsX();d++) {
815 valueSum += h2RMDeltaPt->GetBinContent(d,m) * h2RMDetector->GetBinContent(t,d);
817 // cout << "t,m = " << t << "," << m << endl;
818 h2ResponseMatrixCombined->SetBinContent(t,m,valueSum);
822 return h2ResponseMatrixCombined;
826 //--------------------------------------------------------------------------------------------------------------------------------------------------
827 TH2* AliAnaChargedJetResponseMaker::GetTransposeResponsMatrix(TH2 *h2RM) {
829 // Transpose response matrix
832 //Initialize transposed response matrix h2RMTranspose
833 TArrayD *arrayX = (TArrayD*)h2RM->GetXaxis()->GetXbins();
834 for(int i=0; i<arrayX->GetSize(); i++) cout << "i: " << arrayX->At(i) << endl;
835 Double_t *xbinsArray = arrayX->GetArray();
837 TArrayD *arrayY = (TArrayD*)h2RM->GetYaxis()->GetXbins();
838 for(int i=0; i<arrayY->GetSize(); i++) cout << "i: " << arrayY->At(i) << endl;
839 Double_t *ybinsArray = arrayY->GetArray();
841 TH2D *h2RMTranspose = new TH2D("h2RMTranspose","h2RMTranspose",h2RM->GetNbinsY(),ybinsArray,h2RM->GetNbinsX(),xbinsArray);
843 //Fill tranposed response matrix
844 for (Int_t ibin = 1; ibin <= h2RMTranspose->GetNbinsX(); ibin++) {
845 for (Int_t jbin = 1; jbin <= h2RMTranspose->GetNbinsY(); jbin++) {
846 h2RMTranspose->SetBinContent(ibin,jbin, h2RM->GetBinContent(jbin,ibin));
851 return h2RMTranspose;
855 //--------------------------------------------------------------------------------------------------------------------------------------------------
856 TH2* AliAnaChargedJetResponseMaker::NormalizeResponsMatrixYaxisWithPrior(TH2 *h2RM, TH1 *hPrior) {
858 // Normalize such that the Y projection is the prior
861 TH1D *hProjRespY = (TH1D*)h2RM->ProjectionY("hProjRespY");
862 double intPrior = hPrior->Integral();//"width");
863 for (Int_t jbin = 1; jbin <= h2RM->GetNbinsY(); jbin++) {
864 // double corr = hPrior->GetBinContent(jbin)/hProjRespY->GetBinContent(jbin);
865 for (Int_t ibin = 1; ibin <= h2RM->GetNbinsX(); ibin++) {
866 double content = h2RM->GetBinContent(ibin,jbin);
867 // h2RM->SetBinContent(ibin,jbin,content*corr);
868 h2RM->SetBinContent(ibin,jbin,hPrior->GetBinContent(jbin)/hPrior->GetBinWidth(jbin)/intPrior*content);
875 //--------------------------------------------------------------------------------------------------------------------------------------------------
876 TH1D* AliAnaChargedJetResponseMaker::MultiplyResponseGenerated(TH1 *hGen, TH2 *hResponse,TH1 *hEfficiency,Bool_t bDrawSlices) {
879 // Multiply hGen with response matrix to obtain refolded spectrum
880 // Efficiency must be given. In case efficiency is 1 use SetFlatEfficiency(1.) before calling function
884 // printf("Efficiency must be given. In case efficiency is 1 use SetFlatEfficiency(1.) before calling function. Aborting!");
886 printf("Setting efficiency to 1 \n");
887 hEfficiency = (TH1D*)hGen->Clone("hEfficiency");
888 hEfficiency->Reset();
889 for(int i=1; i<=hEfficiency->GetNbinsX(); i++) hEfficiency->SetBinContent(i,1.);
894 //y-axis: reconstructed
895 if(fDebug>0) cout << "nbins hGen: " << hGen->GetNbinsX() << "\t nbins hResponseGen: " << hResponse->GetXaxis()->GetNbins() << "\t nbins hResponseRec: " << hResponse->GetYaxis()->GetNbins() << endl;
897 TH1D *hRec = hResponse->ProjectionY("hRec");
900 hRec->SetTitle("hRec");
901 hRec->SetName("hRec");
903 for(int irec=1; irec<=hRec->GetNbinsX(); irec++)
904 hRec->SetBinContent(irec,0);
906 TH1D *hRecGenBin = 0x0;
907 TCanvas *cSlices = 0x0;
909 cSlices = new TCanvas("cSlices","cSlices:Slices",400,400);
913 Double_t yieldMC = 0.;
914 Double_t yieldMCerror = 0.;
915 Double_t sumYield = 0.;
916 const Int_t nbinsRec = hRec->GetNbinsX();
917 Double_t sumError2[nbinsRec+1];
920 for(int igen=1; igen<=hGen->GetNbinsX(); igen++) {
926 eff = hEfficiency->GetBinContent(igen);
927 yieldMC = hGen->GetBinContent(igen)*eff;
928 yieldMCerror = hGen->GetBinError(igen)*eff;
931 hRecGenBin = hResponse->ProjectionY(Form("hRecGenBin%d",igen));
934 hRecGenBin->SetTitle(Form("hRecGenBin%d",igen));
935 hRecGenBin->SetName(Form("hRecGenBin%d",igen));
938 for(int irec=1; irec<=hRec->GetNbinsX(); irec++) {
939 hRec->AddBinContent(irec,yieldMC*hResponse->GetBinContent(igen,irec));
940 sumYield+=hResponse->GetBinContent(igen,irec);
941 // Double_t A = yieldMC*hResponse->GetBinError(igen,irec);
942 Double_t B = hResponse->GetBinContent(igen,irec)*yieldMCerror;
943 // Double_t tmp2 = A*A + B*B;
944 //sumError2[irec-1] += tmp2 ;
945 sumError2[irec-1] += B*B;
948 hRecGenBin->SetBinContent(irec,yieldMC*hResponse->GetBinContent(igen,irec));
953 hRecGenBin->SetLineColor(igen);
954 if(igen==1) hRecGenBin->DrawCopy();
955 else hRecGenBin->DrawCopy("same");
958 if(hRecGenBin) delete hRecGenBin;
960 cout << "igen: " << igen << "\tpTMC: " << hGen->GetXaxis()->GetBinCenter(igen) << "\teff:" << eff << "\tsumYield: " << sumYield << endl;
963 for(int i=0; i<=nbinsRec; i++) {
965 hRec->SetBinError(i+1,TMath::Sqrt(sumError2[i]));
972 //--------------------------------------------------------------------------------------------------------------------------------------------------
973 TH1D* AliAnaChargedJetResponseMaker::MultiplyResponseGenerated(TF1 *fGen, TH2 *hResponse,TH1 *hEfficiency) {
976 // Multiply fGen function with response matrix to obtain (re)folded spectrum
977 // Efficiency must be given. In case efficiency is 1 use SetFlatEfficiency(1.) before calling function
982 //y-axis: reconstructed
984 if(fDebug>0) printf(">>AliAnaChargedJetResponseMaker::MultiplyResponseGenerated(TF1 *fGen, TH2 *hResponse,TH1 *hEfficiency)");
987 printf("Efficiency must be given. In case efficiency is 1 use SetFlatEfficiency(1.) before calling function. Aborting!");
991 TH1D *hRec = hResponse->ProjectionY("hRec");
994 hRec->SetTitle("hRec");
995 hRec->SetName("hRec");
997 // TH1D *hRec = new TH1D("hRec","hRec",hResponse->GetNbinsY(),hResponse->GetYaxis()->GetXmin(),hResponse->GetYaxis()->GetXmax());
999 for(int irec=1; irec<=hRec->GetNbinsX(); irec++)
1000 hRec->SetBinContent(irec,0);
1002 Double_t yieldMC = 0.;
1003 Double_t sumYield = 0.;
1005 for(int igen=1; igen<=hResponse->GetNbinsX(); igen++) {
1008 double pTMC = hResponse->GetXaxis()->GetBinCenter(igen);
1009 int binEff = hEfficiency->FindBin(pTMC);
1013 eff = hEfficiency->GetBinContent(binEff);
1014 yieldMC = fGen->Eval(pTMC)*eff;
1015 for(int irec=1; irec<=hResponse->GetNbinsY(); irec++) {
1016 hRec->AddBinContent(irec,yieldMC*hResponse->GetBinContent(igen,irec));
1017 sumYield+=hResponse->GetBinContent(igen,irec);
1019 cout << "igen: " << igen << "\tpTMC: " << pTMC << "\tsumYield: " << sumYield << endl;
1025 //--------------------------------------------------------------------------------------------------------------------------------------------------
1026 Double_t AliAnaChargedJetResponseMaker::InterpolateFast(TGraph *gr, Double_t x) {
1028 Double_t ipmax = gr->GetN()-1.;
1029 Double_t x2,y2,xold,yold;
1031 Double_t xmin,ymin,xmax, ymax;
1032 gr->GetPoint(0,xmin,ymin);
1033 gr->GetPoint(gr->GetN()-1,xmax,ymax);
1034 if(x<xmin || x>xmax) return 0;
1036 Double_t ip = ipmax/2.;
1037 Double_t ipold = 0.;
1038 gr->GetPoint((int)(ip),x2,y2);
1046 gr->GetPoint((int)(ip),x2,y2);
1050 // cout << "ipold: " << ipold << "\tip: " << ip << "\tx2: " << x2 << "\ty2: " << y2 << endl;
1055 if(i==0) ipold=ipmax;
1056 ip += (ipold-ip)/2.;
1057 gr->GetPoint((int)(ip),x2,y2);
1058 if(x2>x) ipold = ip;
1061 // cout << "ipold: " << ipold << "\tip: " << ip << "\tx2: " << x2 << "\ty2: " << y2 << endl;
1068 gr->GetPoint(ip2,x2,y2);
1071 gr->GetPoint(ip2,x2,y2);
1073 gr->GetPoint(ip2+1,xold,yold);
1077 gr->GetPoint(ip2,x2,y2);
1080 gr->GetPoint(ip2,x2,y2);
1082 gr->GetPoint(ip2-1,xold,yold);
1085 // cout << "For x=" << x << " interpolate between: " << xold << " and " << x2 << endl;
1086 return ((x-xold)*y2 + (x2-x)*yold) / (x2-xold);
1090 //--------------------------------------------------------------------------------------------------------------------------------------------------
1091 Double_t AliAnaChargedJetResponseMaker::InterpolateFast(TH1 *h, Double_t x) {
1093 // Double_t ipmax = gr->GetN()-1.;
1094 Double_t ipmax = (double)h->GetNbinsX();
1095 Double_t x2,y2,xold,yold;
1097 Double_t xmin = h->GetXaxis()->GetXmin();
1098 Double_t xmax = h->GetXaxis()->GetXmax();
1099 if(x<xmin || x>xmax) return 0;
1101 Double_t ip = ipmax/2.;
1102 Double_t ipold = 0.;
1104 x2 = h->GetBinCenter((int)ip);
1105 y2 = h->GetBinContent((int)ip);
1113 x2 = h->GetBinCenter((int)ip);
1114 y2 = h->GetBinContent((int)ip);
1118 // cout << "ipold: " << ipold << "\tip: " << ip << "\tx2: " << x2 << "\ty2: " << y2 << endl;
1123 if(i==0) ipold=ipmax;
1124 ip += (ipold-ip)/2.;
1125 x2 = h->GetBinCenter((int)ip);
1126 y2 = h->GetBinContent((int)ip);
1127 if(x2>x) ipold = ip;
1130 // cout << "ipold: " << ipold << "\tip: " << ip << "\tx2: " << x2 << "\ty2: " << y2 << endl;
1137 x2 = h->GetBinCenter(ip2);
1138 y2 = h->GetBinContent(ip2);
1141 x2 = h->GetBinCenter(ip2);
1142 y2 = h->GetBinContent(ip2);
1144 xold = h->GetBinCenter(ip2+1);
1145 yold = h->GetBinContent(ip2+1);
1149 x2 = h->GetBinCenter(ip2);
1150 y2 = h->GetBinContent(ip2);
1153 x2 = h->GetBinCenter(ip2);
1154 y2 = h->GetBinContent(ip2);
1156 xold = h->GetBinCenter(ip2-1);
1157 yold = h->GetBinContent(ip2-1);
1160 // cout << "For x=" << x << " interpolate between: " << xold << " and " << x2 << endl;
1161 return ((x-xold)*y2 + (x2-x)*yold) / (x2-xold);