PWG0/AliCorrection.cxx

   1 /* $Id$ */
   2
   3 // ------------------------------------------------------
   4 //
   5 // Class to handle corrections.
   6 //
   7 // ------------------------------------------------------
   8 //
   9
  10 #include <TFile.h>
  11 #include <TCanvas.h>
  12 #include <TH3F.h>
  13 #include <TH2F.h>
  14 #include <TMath.h>
  15
  16 #include <AliLog.h>
  17 #include "AliCorrectionMatrix2D.h"
  18 #include "AliCorrectionMatrix3D.h"
  19
  20 #include "AliCorrection.h"
  21
  22 //____________________________________________________________________
  23 ClassImp(AliCorrection)
  24
  25 //____________________________________________________________________
  26 AliCorrection::AliCorrection() : TNamed(),
  27   fEventCorr(0),
  28   fTrackCorr(0)
  29 {
  30   // default constructor
  31 }
  32
  33 //____________________________________________________________________
  34 AliCorrection::AliCorrection(const Char_t* name, const Char_t* title, AliPWG0Helper::AnalysisMode analysisMode) : TNamed(name, title),
  35   fEventCorr(0),
  36   fTrackCorr(0)
  37 {
  38   // constructor initializing tnamed
  39
  40   Float_t* binLimitsPt = 0;
  41   Int_t nBinsPt = 0;
  42
  43   // different binnings, better solution could be anticipated...
  44   if ((analysisMode & AliPWG0Helper::kTPC || analysisMode & AliPWG0Helper::kTPCITS) && (analysisMode & AliPWG0Helper::kFieldOn))
  45   {
  46     static Float_t binLimitsPtTmp[] = {0.0, 0.05, 0.1, 0.125, 0.15, 0.175, 0.2, 0.225, 0.25, 0.275, 0.3, 0.325, 0.35, 0.375, 0.4, 0.425, 0.45, 0.475, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.5, 2.0, 5.0, 10.0, 100.0};
  47     binLimitsPt = (Float_t*) binLimitsPtTmp;
  48     nBinsPt = 28;
  49   }
  50   else if (analysisMode & AliPWG0Helper::kSPD || !(analysisMode & AliPWG0Helper::kFieldOn))
  51   {
  52     static Float_t binLimitsPtTmp[] = {-0.5, 100.0};
  53     binLimitsPt = (Float_t*) binLimitsPtTmp;
  54     nBinsPt = 1;
  55   }
  56
  57   if (!binLimitsPt)
  58   {
  59     Printf("FATAL: Invalid binning");
  60     return;
  61   }
  62
  63   // third axis for track histogram
  64   Int_t nBinsN2 = 1;
  65   Float_t binLimitsN2[]   = {-0.5, 1000};
  66   const char* title3 = "Ntracks";
  67   //Int_t nBinsN2 = 21;
  68   //Float_t binLimitsN2[]   = {-0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 12.5, 14.5, 16.5, 18.5, 20.5, 25.5, 30.5, 40.5, 50.5, 100.5, 1000.5};
  69   // phi
  70   //Int_t nBinsN2 = 36;
  71   //Float_t binLimitsN2[]   = {0.000, 0.175, 0.349, 0.524, 0.698, 0.873, 1.047, 1.222, 1.396, 1.571, 1.745, 1.920, 2.094, 2.269, 2.443, 2.618, 2.793, 2.967, 3.142, 3.316, 3.491, 3.665, 3.840, 4.014, 4.189, 4.363, 4.538, 4.712, 4.887, 5.061, 5.236, 5.411, 5.585, 5.760, 5.934, 6.109, TMath::Pi() * 2};
  72   //const char* title3 = "#phi";
  73
  74   // mult axis for event histogram
  75   Int_t nBinsN = 22;
  76   Float_t binLimitsN[]   = {-0.5, 0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 12.5, 14.5, 16.5, 18.5, 20.5, 25.5, 30.5, 40.5, 50.5, 100.5, 300.5};
  77   //Int_t nBinsN = 52;
  78   //Float_t binLimitsN[]   = {-0.5, 0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 11.5, 12.5, 13.5, 14.5, 15.5, 16.5, 17.5, 18.5, 19.5, 20.5, 21.5, 22.5, 23.5, 24.5, 25.5, 26.5, 27.5, 28.5, 29.5, 30.5, 31.5, 32.5, 33.5, 34.5, 35.5, 36.5, 37.5, 38.5, 39.5, 40.5, 41.5, 42.5, 43.5, 44.5, 45.5, 46.5, 47.5, 48.5, 49.5, 50.5, 100.5, 300.5};
  79
  80   //Float_t binLimitsVtx[] = {-20,-15,-10,-6,-3,0,3,6,10,15,20};
  81   //Float_t binLimitsVtx[] = {-20,-19,-18,-17,-16,-15,-14,-13,-12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20};
  82   Float_t binLimitsVtx[] = {-30,-25,-20,-15,-10,-8,-6,-4,-2,0,2,4,6,8,10,15,20,25,30};
  83   /*Float_t binLimitsEta[] = {-3.0,-2.8,-2.6,-2.4,-2.2,
  84                             -2.0,-1.8,-1.6,-1.4,-1.2,
  85                             -1.0,-0.8,-0.6,-0.4,-0.2, 0.0,
  86                              0.2, 0.4, 0.6, 0.8, 1.0,
  87                              1.2, 1.4, 1.6, 1.8, 2.0,
  88                              2.2, 2.4, 2.6, 2.8, 3.0};*/
  89   Float_t binLimitsEta[] = { -3.0, -2.9, -2.8, -2.7, -2.6, -2.5, -2.4, -2.3, -2.2, -2.1, -2.0, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4, -1.3, -1.2, -1.1, -1.0, -0.9, -0.8, -0.7, -0.6, -0.5, -0.4, -0.3, -0.2, -0.1, -0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0 };
  90 //  Float_t binLimitsEta[] = {-2,-1.8,-1.6,-1.4,-1.2,-1.0,-0.8,-0.6,-0.4,-0.2,0.0,0.2,0.4,0.6,0.8,1.0,1.2,1.4,1.6,1.8,2.0};
  91 //  Float_t binLimitsEta[] = {-2,-1.9,-1.8,-1.7,-1.6,-1.5,-1.4,-1.3,-1.2,-1.1,-1.0,-0.9,-0.8,-0.7,-0.6,-0.5,-0.4,-0.3,-0.2,-0.1,0.0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0};
  92 //  Float_t binLimitsEta[] = { -7.0, -6.9, -6.8, -6.7, -6.6, -6.5, -6.4, -6.3, -6.2, -6.1, -6.0, -5.9, -5.8, -5.7, -5.6, -5.5, -5.4, -5.3, -5.2, -5.1, -5.0, -4.9, -4.8, -4.7, -4.6, -4.5, -4.4, -4.3, -4.2, -4.1, -4.0, -3.9, -3.8, -3.7, -3.6, -3.5, -3.4, -3.3, -3.2, -3.1, -3.0, -2.9, -2.8, -2.7, -2.6, -2.5, -2.4, -2.3, -2.2, -2.1, -2.0, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4, -1.3, -1.2, -1.1, -1.0, -0.9, -0.8, -0.7, -0.6, -0.5, -0.4, -0.3, -0.2, -0.1, -0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0 };
  93
  94   fEventCorr = new AliCorrectionMatrix2D("EventCorrection", Form("%s EventCorrection", fTitle.Data()), 18, binLimitsVtx, nBinsN, binLimitsN);
  95
  96   if (analysisMode & AliPWG0Helper::kSPD)
  97   {
  98     TH3F* dummyBinning = new TH3F("dummyBinning","dummyBinning",18, binLimitsVtx, 60, binLimitsEta, nBinsN2, binLimitsN2);
  99     fTrackCorr = new AliCorrectionMatrix3D("TrackCorrection", Form("%s TrackCorrection", fTitle.Data()), dummyBinning);
 100     fTrackCorr->SetAxisTitles("vtx-z (cm)", "#eta", title3);
 101     delete dummyBinning;
 102   }
 103   else
 104   {
 105     TH3F* dummyBinning = new TH3F("dummyBinning","dummyBinning",18, binLimitsVtx, 60, binLimitsEta , nBinsPt, binLimitsPt);
 106     fTrackCorr = new AliCorrectionMatrix3D("TrackCorrection", Form("%s TrackCorrection", fTitle.Data()), dummyBinning);
 107     fTrackCorr->SetAxisTitles("vtx-z (cm)", "#eta", "p_{T} (GeV/c)");
 108     delete dummyBinning;
 109   }
 110
 111
 112   fEventCorr->SetAxisTitles("vtx-z (cm)", "Ntracks");
 113 }
 114
 115 //____________________________________________________________________
 116 AliCorrection::AliCorrection(const AliCorrection& c) : TNamed(c),
 117   fEventCorr(0),
 118   fTrackCorr(0)
 119 {
 120   // copy constructor
 121   ((AliCorrection &)c).Copy(*this);
 122 }
 123
 124 //____________________________________________________________________
 125 AliCorrection::~AliCorrection()
 126 {
 127   //
 128   // destructor
 129   //
 130
 131   if (fEventCorr)
 132   {
 133     delete fEventCorr;
 134     fEventCorr = 0;
 135   }
 136
 137   if (fTrackCorr)
 138   {
 139     delete fTrackCorr;
 140     fTrackCorr = 0;
 141   }
 142 }
 143
 144 //____________________________________________________________________
 145 AliCorrection &AliCorrection::operator=(const AliCorrection &c)
 146 {
 147   // assigment operator
 148
 149   if (this != &c)
 150     ((AliCorrection &) c).Copy(*this);
 151
 152   return *this;
 153 }
 154
 155 //____________________________________________________________________
 156 void AliCorrection::Copy(TObject& c) const
 157 {
 158   // copy function
 159
 160   AliCorrection& target = (AliCorrection &) c;
 161
 162   if (fEventCorr)
 163     target.fEventCorr = dynamic_cast<AliCorrectionMatrix2D*> (fEventCorr->Clone());
 164
 165   if (fTrackCorr)
 166     target.fTrackCorr = dynamic_cast<AliCorrectionMatrix3D*> (fTrackCorr->Clone());
 167 }
 168
 169 //____________________________________________________________________
 170 Long64_t AliCorrection::Merge(TCollection* list)
 171 {
 172   // Merge a list of AliCorrection objects with this (needed for
 173   // PROOF).
 174   // Returns the number of merged objects (including this).
 175
 176   if (!list)
 177     return 0;
 178
 179   if (list->IsEmpty())
 180     return 1;
 181
 182   TIterator* iter = list->MakeIterator();
 183   TObject* obj;
 184
 185   // collections of measured and generated histograms
 186   TList* collectionEvent = new TList;
 187   TList* collectionTrack = new TList;
 188
 189   Int_t count = 0;
 190   while ((obj = iter->Next())) {
 191
 192     AliCorrection* entry = dynamic_cast<AliCorrection*> (obj);
 193     if (entry == 0)
 194       continue;
 195
 196     collectionEvent->Add(entry->fEventCorr);
 197     collectionTrack->Add(entry->fTrackCorr);
 198
 199     count++;
 200   }
 201   fEventCorr->Merge(collectionEvent);
 202   fTrackCorr->Merge(collectionTrack);
 203
 204   delete collectionEvent;
 205   delete collectionTrack;
 206
 207   return count+1;
 208 }
 209
 210 //____________________________________________________________________
 211 void AliCorrection::Divide()
 212 {
 213   //
 214   // divide the histograms to get the correction
 215   //
 216
 217   if (!fEventCorr || !fTrackCorr)
 218     return;
 219
 220   fEventCorr->Divide();
 221   fTrackCorr->Divide();
 222
 223   Int_t emptyBins = fTrackCorr->CheckEmptyBins(-9.99, 9.99, -0.79, 0.79, 0.2, 4.9);
 224   printf("INFO: In the central region the track correction of %s has %d empty bins\n", GetName(), emptyBins);
 225 }
 226
 227 //____________________________________________________________________
 228 void AliCorrection::Add(AliCorrection* aCorrectionToAdd, Float_t c)
 229 {
 230   //
 231   // add to measured and generated the measured and generated of aCorrectionToAdd
 232   // with the weight c
 233
 234   fEventCorr->Add(aCorrectionToAdd->GetEventCorrection(),c);
 235   fTrackCorr->Add(aCorrectionToAdd->GetTrackCorrection(),c);
 236 }
 237
 238
 239 //____________________________________________________________________
 240 Bool_t AliCorrection::LoadHistograms(const Char_t* dir)
 241 {
 242   //
 243   // loads the histograms from a file
 244   // if dir is empty a directory with the name of this object is taken (like in SaveHistogram)
 245   //
 246
 247   if (!fEventCorr || !fTrackCorr)
 248     return kFALSE;
 249
 250   if (!dir)
 251     dir = GetName();
 252
 253   if (!gDirectory->cd(dir))
 254     return kFALSE;
 255
 256   Bool_t success = fEventCorr->LoadHistograms();
 257   success &= fTrackCorr->LoadHistograms();
 258
 259   gDirectory->cd("..");
 260
 261   return success;
 262 }
 263
 264 //____________________________________________________________________
 265 void AliCorrection::SaveHistograms()
 266 {
 267   //
 268   // saves the histograms in a directory with the name of this object (GetName)
 269   //
 270
 271   gDirectory->mkdir(GetName());
 272   gDirectory->cd(GetName());
 273
 274   if (fEventCorr)
 275     fEventCorr->SaveHistograms();
 276
 277   if (fTrackCorr)
 278     fTrackCorr->SaveHistograms();
 279
 280   gDirectory->cd("..");
 281 }
 282
 283 //____________________________________________________________________
 284 void AliCorrection::ReduceInformation()
 285 {
 286   // this function deletes the measured and generated histograms to reduce the amount of data
 287   // in memory
 288
 289   if (!fEventCorr || !fTrackCorr)
 290     return;
 291
 292   fEventCorr->ReduceInformation();
 293   fTrackCorr->ReduceInformation();
 294 }
 295
 296 //____________________________________________________________________
 297 void AliCorrection::Reset(Option_t* option)
 298 {
 299   // resets the histograms
 300
 301   if (fEventCorr)
 302     fEventCorr->Reset(option);
 303
 304   if (fTrackCorr)
 305     fTrackCorr->Reset(option);
 306 }
 307
 308 //____________________________________________________________________
 309 void AliCorrection::DrawHistograms(const Char_t* name)
 310 {
 311   // draws the corrections
 312
 313   if (!name)
 314     name = GetName();
 315
 316   if (fEventCorr)
 317     fEventCorr->DrawHistograms(Form("%s event", name));
 318
 319   if (fTrackCorr)
 320     fTrackCorr->DrawHistograms(Form("%s track", name));
 321 }
 322
 323 void AliCorrection::DrawOverview(const char* canvasName)
 324 {
 325   // draw projection of the corrections
 326   //   to the 3 axis of fTrackCorr and 2 axis of fEventCorr
 327
 328   TString canvasNameTmp(GetName());
 329   if (canvasName)
 330     canvasNameTmp = canvasName;
 331
 332   TCanvas* canvas = new TCanvas(canvasNameTmp, canvasNameTmp, 1200, 1200);
 333   canvas->Divide(3, 3);
 334
 335   if (fTrackCorr) {
 336     canvas->cd(1);
 337     fTrackCorr->Get2DCorrectionHistogram("xy", 0, 0)->DrawCopy("COLZ")->GetZaxis()->SetRangeUser(0, 10);
 338
 339     canvas->cd(2);
 340     fTrackCorr->Get2DCorrectionHistogram("yz", 0, 0)->DrawCopy("COLZ")->GetZaxis()->SetRangeUser(0, 10);
 341
 342     canvas->cd(3);
 343     fTrackCorr->Get2DCorrectionHistogram("zx", 0, 0)->DrawCopy("COLZ")->GetZaxis()->SetRangeUser(0, 10);
 344
 345     canvas->cd(4);
 346     fTrackCorr->Get1DCorrectionHistogram("x", 0.3, 5, -1, 1)->DrawCopy()->GetYaxis()->SetRangeUser(0, 10);
 347
 348     canvas->cd(5);
 349     fTrackCorr->Get1DCorrectionHistogram("y", 0.3, 5, 0, 0)->DrawCopy()->GetYaxis()->SetRangeUser(0, 10);
 350
 351     canvas->cd(6);
 352     fTrackCorr->Get1DCorrectionHistogram("z", 0, -1, -1, 1)->DrawCopy()->GetYaxis()->SetRangeUser(0, 10);
 353   }
 354
 355   if (fEventCorr)
 356   {
 357     canvas->cd(7);
 358     fEventCorr->GetCorrectionHistogram()->DrawCopy("COLZ")->GetYaxis()->SetRangeUser(0, 30);
 359
 360     canvas->cd(8);
 361     fEventCorr->Get1DCorrectionHistogram("x")->DrawCopy();
 362
 363     canvas->cd(9);
 364     fEventCorr->Get1DCorrectionHistogram("y")->DrawCopy()->GetXaxis()->SetRangeUser(0, 30);
 365   }
 366 }
 367
 368 //____________________________________________________________________
 369 void AliCorrection::SetCorrectionToUnity()
 370 {
 371   // set the corrections to unity
 372
 373   if (fEventCorr)
 374     fEventCorr->SetCorrectionToUnity();
 375
 376   if (fTrackCorr)
 377     fTrackCorr->SetCorrectionToUnity();
 378 }
 379
 380 //____________________________________________________________________
 381 void AliCorrection::Multiply()
 382 {
 383   // call Multiply
 384
 385   if (fEventCorr)
 386   {
 387     fEventCorr->Multiply();
 388     // now we manually copy the overflow bin of the y axis (multiplicity) over. This is important to get the event count correct
 389     TH2* hist = fEventCorr->GetMeasuredHistogram();
 390     for (Int_t x = 1; x <= hist->GetNbinsX(); ++x)
 391       fEventCorr->GetGeneratedHistogram()->SetBinContent(x, hist->GetNbinsY() + 1, hist->GetBinContent(x, hist->GetNbinsY() + 1));
 392   }
 393
 394   if (fTrackCorr)
 395     fTrackCorr->Multiply();
 396 }
 397
 398 //____________________________________________________________________
 399 void AliCorrection::Scale(Double_t factor)
 400 {
 401   // scales the two contained corrections
 402
 403   fEventCorr->Scale(factor);
 404   fTrackCorr->Scale(factor);
 405 }
 406
 407 //____________________________________________________________________
 408 void AliCorrection::PrintStats(Float_t zRange, Float_t etaRange, Float_t ptCut)
 409 {
 410   // prints statistics and effective correction factors
 411
 412   Printf("AliCorrection::PrintInfo: Values in |eta| < %.2f, |vtx-z| < %.2f and pt > %.2f:", etaRange, zRange, ptCut);
 413
 414   // prevent to be on bin border
 415   zRange -= 0.1;
 416   etaRange -= 0.1;
 417
 418   TH3* measured = GetTrackCorrection()->GetMeasuredHistogram();
 419   TH3* generated = GetTrackCorrection()->GetGeneratedHistogram();
 420
 421   TH2* measuredEvents = GetEventCorrection()->GetMeasuredHistogram();
 422   TH2* generatedEvents = GetEventCorrection()->GetGeneratedHistogram();
 423
 424   Float_t tracksM = measured->Integral(measured->GetXaxis()->FindBin(-zRange), measured->GetXaxis()->FindBin(zRange), measured->GetYaxis()->FindBin(-etaRange), measured->GetYaxis()->FindBin(etaRange), measured->GetZaxis()->FindBin(ptCut), measured->GetZaxis()->GetNbins());
 425   Float_t tracksG = generated->Integral(generated->GetXaxis()->FindBin(-zRange), generated->GetXaxis()->FindBin(zRange), generated->GetYaxis()->FindBin(-etaRange), generated->GetYaxis()->FindBin(etaRange), generated->GetZaxis()->FindBin(ptCut), generated->GetZaxis()->GetNbins());
 426
 427   Float_t eventsM = measuredEvents->Integral(measuredEvents->GetXaxis()->FindBin(-zRange), measuredEvents->GetXaxis()->FindBin(zRange), 1, measuredEvents->GetNbinsY());
 428   Float_t eventsG = generatedEvents->Integral(generatedEvents->GetXaxis()->FindBin(-zRange), generatedEvents->GetXaxis()->FindBin(zRange), 1, generatedEvents->GetNbinsY());
 429
 430   Printf("tracks measured: %.1f tracks generated: %.1f, events measured: %.1f, events generated %.1f", tracksM, tracksG, eventsM, eventsG);
 431
 432   if (tracksM > 0)
 433     Printf("Effective average correction factor for TRACKS: %.3f", tracksG / tracksM);
 434   if (eventsM > 0)
 435     Printf("Effective average correction factor for EVENTS: %.3f", eventsG / eventsM);
 436
 437   if (eventsM > 0 && eventsG > 0)
 438   {
 439     // normalize to number of events;
 440     tracksM /= eventsM;
 441     tracksG /= eventsG;
 442
 443     Printf("%.2f tracks/event measured, %.2f tracks/event after correction --> effective average correction factor is %.3f (pt cut %.2f GeV/c)", tracksM, tracksG, (tracksM > 0) ? (tracksG / tracksM) : -1, ptCut);
 444   }
 445 }
 446
 447 //____________________________________________________________________
 448 void AliCorrection::PrintInfo(Float_t ptCut)
 449 {
 450   // prints some stats
 451
 452   TH3* measured = GetTrackCorrection()->GetMeasuredHistogram();
 453   TH3* generated = GetTrackCorrection()->GetGeneratedHistogram();
 454
 455   TH2* measuredEvents = GetEventCorrection()->GetMeasuredHistogram();
 456   TH2* generatedEvents = GetEventCorrection()->GetGeneratedHistogram();
 457
 458   Printf("AliCorrection::PrintInfo: Whole phasespace:");
 459
 460   Printf("tracks measured: %.1f tracks generated: %.1f, events measured: %.1f, events generated %.1f", measured->Integral(), generated->Integral(), measuredEvents->Integral(), generatedEvents->Integral());
 461
 462   Printf("Example centered bin: tracks measured: %.1f tracks generated: %.1f, events measured: %.1f, events generated %.1f", measured->GetBinContent(measured->GetNbinsX() / 2, measured->GetNbinsY() / 2, measured->GetNbinsZ() / 2), generated->GetBinContent(measured->GetNbinsX() / 2, measured->GetNbinsY() / 2, measured->GetNbinsZ() / 2), measuredEvents->GetBinContent(measuredEvents->GetNbinsX() / 2, measuredEvents->GetNbinsY() / 2), generatedEvents->GetBinContent(measuredEvents->GetNbinsX() / 2, measuredEvents->GetNbinsY() / 2));
 463
 464   PrintStats(10, 0.8, ptCut);
 465   PrintStats(10, 1.5, ptCut);
 466 }