ITS/macrosSDD/TrendQAtrainSDD.C

   1 #if !defined(__CINT__) || defined(__MAKECINT__)
   2 #include <TH1F.h>
   3 #include <TH2F.h>
   4 #include <TF1.h>
   5 #include <TPad.h>
   6 #include <TGraphErrors.h>
   7 #include <TROOT.h>
   8 #include <TFile.h>
   9 #include <TTree.h>
  10 #include <TGrid.h>
  11 #include <TGridResult.h>
  12 #include <TMath.h>
  13 #include <TSystem.h>
  14 #include <TNtuple.h>
  15 #include <TCanvas.h>
  16 #include <TStyle.h>
  17 #include <TLatex.h>
  18 #include <TLegend.h>
  19 #include <TLegendEntry.h>
  20 #include "AliITSgeomTGeo.h"
  21 #endif
  22
  23 Double_t LangausFun(Double_t *x, Double_t *par);
  24 void MakePlots(TString ntupleFileName);
  25
  26
  27 void TrendQAtrainSDD(TString period,
  28                      TString recoPass,
  29                      TString qaTrain1,
  30                      TString qaTrain2,
  31                      Int_t firstRun=0,
  32                      Int_t lastRun=999999999,
  33                      TString fileName="QAresults.root"){
  34
  35   gStyle->SetOptStat(0);
  36
  37
  38   TGrid::Connect("alien:");
  39   Int_t year=0;
  40   if(period.Contains("LHC09")) year=2009;
  41   else if(period.Contains("LHC10")) year=2010;
  42
  43   TString outFilNam=Form("TrendingSDD_%s_%s_%s.root",period.Data(),recoPass.Data(),qaTrain1.Data());
  44
  45
  46   const Int_t nVariables=27;
  47   TNtuple* ntsdd=new TNtuple("ntsdd","SDD trending","nrun:fracTrackWithClu1:errfracTrackWithClu1:fracTrackWithClu2:errfracTrackWithClu2:fracTrackWithClu3:errfracTrackWithClu3:fracTrackWithClu4:errfracTrackWithClu4:fracTrackWithClu5:errfracTrackWithClu5:fracTrackWithClu6:errfracTrackWithClu6:meanTrPts3:errmeanTrPts3:meanTrPts4:errmeanTrPts4:minDrTime:errminDrTime:meanDrTime:errmeanDrTime:fracExtra:errfracExtra:meandEdxTB0:errmeandEdxTB0:meandEdxTB5:errmeandEdxTB5");
  48   Float_t xnt[nVariables];
  49
  50   TBits* readRun=new TBits(999999);
  51   readRun->ResetAllBits();
  52   if(!gSystem->Exec(Form("ls -l %s > /dev/null 2>&1",outFilNam.Data()))){
  53     TFile* oldfil=new TFile(outFilNam.Data());
  54     TNtuple* ntmp=(TNtuple*)oldfil->Get("ntsdd");
  55     Bool_t isOK=kFALSE;
  56     if(ntmp){
  57       if(ntmp->GetNvar()==ntsdd->GetNvar()){
  58         isOK=kTRUE;
  59         TObjArray* arr1=(TObjArray*)ntsdd->GetListOfBranches();
  60         TObjArray* arr2=(TObjArray*)ntmp->GetListOfBranches();
  61         for(Int_t iV=0; iV<ntmp->GetNvar(); iV++){
  62           TString vnam1=arr1->At(iV)->GetName();
  63           TString vnam2=arr2->At(iV)->GetName();
  64           if(vnam1!=vnam2) isOK=kFALSE;
  65           ntmp->SetBranchAddress(vnam2.Data(),&xnt[iV]);
  66         }
  67         if(isOK){
  68           for(Int_t nE=0; nE<ntmp->GetEntries(); nE++){
  69             ntmp->GetEvent(nE);
  70             Int_t theRun=(Int_t)(xnt[0]+0.0001);
  71             readRun->SetBitNumber(theRun);
  72             ntsdd->Fill(xnt);
  73           }
  74         }
  75       }
  76     }
  77     if(!isOK){
  78       printf("Ntuple in local file not OK -> will be recreated\n");
  79     }
  80     oldfil->Close();
  81     delete oldfil;
  82   }
  83
  84   if(!gGrid||!gGrid->IsConnected()) {
  85     printf("gGrid not found! exit macro\n");
  86     return;
  87   }
  88
  89   TString  path=Form("/alice/data/%d/%s/",year,period.Data(),recoPass.Data());
  90   TGridResult *gr = gGrid->Query(path,fileName);
  91   Int_t nFiles = gr->GetEntries();
  92   printf("================>%d files found\n", nFiles);
  93   if (nFiles < 1) return;
  94
  95
  96   if (nFiles > 1){
  97     for (Int_t iFil = 0; iFil <nFiles ; iFil++) {
  98       TString fileNameLong=Form("%s",gr->GetKey(iFil,"turl"));
  99       if(!fileNameLong.Contains(recoPass.Data())) continue;
 100       if(!fileNameLong.Contains(qaTrain1.Data()) &&
 101          !fileNameLong.Contains(qaTrain2.Data())) continue;
 102       if(!fileNameLong.Contains(Form("%s/%s",qaTrain1.Data(),fileName.Data())) &&
 103          !fileNameLong.Contains(Form("%s/%s",qaTrain2.Data(),fileName.Data()))) continue;
 104       TString runNumber=fileNameLong;
 105       runNumber.ReplaceAll(Form("alien:///alice/data/%d/%s/",year,period.Data()),"");
 106       runNumber.Remove(9,runNumber.Sizeof());
 107
 108       Int_t iRun=atoi(runNumber.Data());
 109       if(readRun->TestBitNumber(iRun)){
 110         printf("Run %d aleady in local ntuple -> skipping it\n",iRun);
 111         continue;
 112       }
 113       if(iRun<firstRun) continue;
 114       if(iRun>lastRun) continue;
 115
 116       TFile* f=TFile::Open(fileNameLong.Data());
 117
 118       TDirectoryFile* df=(TDirectoryFile*)f->Get("SDD_Performance");
 119       if(!df){
 120         printf("Run %d SDD_Performance MISSING -> Exit\n",iRun);
 121         continue;
 122       }
 123       TList* l=(TList*)df->Get("coutputRP");
 124       if(!df){
 125         printf("Run %d coutputRP TList MISSING -> Exit\n",iRun);
 126         continue;
 127       }
 128       TH1F* hcllay=(TH1F*)l->FindObject("hCluInLay");
 129       Float_t fracT[6]={0.,0.,0.,0.,0.,0.};
 130       Float_t efracT[6]={0.,0.,0.,0.,0.,0.};
 131       if(hcllay->GetBinContent(1)>0){
 132         for(Int_t iLay=0; iLay<6; iLay++){
 133           fracT[iLay]=hcllay->GetBinContent(iLay+2)/hcllay->GetBinContent(1);
 134           efracT[iLay]=TMath::Sqrt(fracT[iLay]*(1-fracT[iLay])/hcllay->GetBinContent(1));
 135         }
 136       }
 137       TH1F* hmodT=(TH1F*)l->FindObject("hTPMod");
 138       TH1F* hgamod=(TH1F*)l->FindObject("hGAMod");
 139       Int_t bestMod=0;
 140       for(Int_t iMod=0; iMod<260;iMod++){
 141         Int_t gda=(Int_t)hgamod->GetBinContent(iMod+1);
 142         if(gda>bestMod) bestMod=gda;
 143       }
 144       Int_t nChunks=1;
 145       if(bestMod>512){
 146         nChunks=(Int_t)(bestMod/512.+0.5);
 147       }
 148       hgamod->Scale(1./nChunks);
 149
 150       TH1F* hev=(TH1F*)l->FindObject("hNEvents");
 151       Int_t nTotEvents=hev->GetBinContent(2);
 152       Int_t nTrigEvents=hev->GetBinContent(3);
 153       Int_t nEvents=nTotEvents;
 154       printf("Run %d Number of Events = %d Triggered=%d\n",iRun,nTotEvents,nTrigEvents);
 155       if(nTrigEvents>0){
 156         nEvents=nTrigEvents;
 157       }
 158
 159       Int_t nModGood3=0;
 160       Int_t nModGood4=0;
 161       Int_t nModBadAn=0;
 162       Float_t sumtp3=0;
 163       Float_t sumtp4=0;
 164       Float_t sumEtp3=0;
 165       Float_t sumEtp4=0;
 166       for(Int_t iMod=0; iMod<260; iMod++){
 167         Float_t tps=hmodT->GetBinContent(iMod+1);
 168         Float_t ga=hgamod->GetBinContent(iMod+1);
 169         if(ga<500) nModBadAn++;
 170         Float_t tpsN=0.;
 171         Float_t etpsN=0.;
 172         if(ga>0){
 173           tpsN=tps/ga/(Float_t)nEvents;
 174           etpsN=TMath::Sqrt(tps)/ga/(Float_t)nEvents;
 175           if(iMod<84){
 176             sumtp3+=tpsN;
 177             sumEtp3+=(etpsN*etpsN);
 178             nModGood3++;
 179           }
 180           else{
 181             sumtp4+=tpsN;
 182             sumEtp4+=(etpsN*etpsN);
 183             nModGood4++;
 184           }
 185         }
 186       }
 187
 188       TH1F* htimT=(TH1F*)l->FindObject("hDrTimTPAll");
 189       TH1F* htimTe=(TH1F*)l->FindObject("hDrTimTPExtra");
 190
 191       Double_t fracExtra=0.;
 192       Double_t errFracExtra=0.;
 193       if(htimT->GetEntries()>0){
 194         fracExtra=htimTe->GetEntries()/htimT->GetEntries();
 195         errFracExtra=TMath::Sqrt(htimTe->GetEntries())/htimT->GetEntries();
 196       }
 197       Double_t averPoints=0.;
 198       Double_t cntBins=0.;
 199       for(Int_t iBin=1; iBin<=htimT->GetNbinsX(); iBin++){
 200         Float_t tim=htimT->GetBinCenter(iBin);
 201         if(tim>2000. && tim<4000.){
 202           averPoints+=htimT->GetBinContent(iBin);
 203           cntBins+=1;
 204         }
 205       }
 206       Double_t minTime=-999.;
 207       Double_t errMinTime=0.;
 208       if(cntBins>0){
 209         averPoints/=cntBins;
 210         for(Int_t iBin=1; iBin<=htimT->GetNbinsX(); iBin++){
 211           if(htimT->GetBinContent(iBin)>0.5*averPoints){
 212             minTime=htimT->GetBinCenter(iBin);
 213             errMinTime=0.5*htimT->GetBinWidth(iBin);
 214             break;
 215           }
 216         }
 217       }
 218       TH1F* hSigTim0=(TH1F*)l->FindObject("hSigTimeInt0");
 219       TH1F* hSigTim5=(TH1F*)l->FindObject("hSigTimeInt5");
 220
 221       Int_t index=0;
 222       xnt[index++]=(Float_t)iRun;
 223       xnt[index++]=fracT[0];
 224       xnt[index++]=efracT[0];
 225       xnt[index++]=fracT[1];
 226       xnt[index++]=efracT[1];
 227       xnt[index++]=fracT[2];
 228       xnt[index++]=efracT[2];
 229       xnt[index++]=fracT[3];
 230       xnt[index++]=efracT[3];
 231       xnt[index++]=fracT[4];
 232       xnt[index++]=efracT[4];
 233       xnt[index++]=fracT[5];
 234       xnt[index++]=efracT[5];
 235       xnt[index++]=sumtp3/nModGood3;
 236       xnt[index++]=TMath::Sqrt(sumEtp3)/nModGood3;
 237       xnt[index++]=sumtp4/nModGood4;
 238       xnt[index++]=TMath::Sqrt(sumEtp4)/nModGood4;
 239       xnt[index++]=minTime;
 240       xnt[index++]=errMinTime;
 241       xnt[index++]=htimT->GetMean();
 242       xnt[index++]=htimT->GetMeanError();
 243       xnt[index++]=fracExtra;
 244       xnt[index++]=errFracExtra;
 245       xnt[index++]=hSigTim0->GetMean();
 246       xnt[index++]=hSigTim0->GetMeanError();
 247       xnt[index++]=hSigTim5->GetMean();
 248       xnt[index++]=hSigTim5->GetMeanError();
 249
 250       ntsdd->Fill(xnt);
 251     }
 252   }
 253
 254   TFile* outfil=new TFile(outFilNam.Data(),"recreate");
 255   outfil->cd();
 256   ntsdd->Write();
 257   outfil->Close();
 258
 259   MakePlots(outFilNam);
 260
 261 }
 262
 263 void MakePlots(TString ntupleFileName){
 264   TFile* fil=new TFile(ntupleFileName.Data(),"read");
 265   if(!fil){
 266     printf("File with ntuple does not exist\n");
 267     return;
 268   }
 269   TNtuple* ntsdd=(TNtuple*)fil->Get("ntsdd");
 270
 271   Float_t nrun;
 272   Float_t meanTrPts3,errmeanTrPts3,meanTrPts4,errmeanTrPts4;
 273   Float_t minDrTime,errminDrTime,meanDrTime,errmeanDrTime;
 274   Float_t fracTrackWithClu1,fracTrackWithClu2,errfracTrackWithClu1,errfracTrackWithClu2;
 275   Float_t fracTrackWithClu3,fracTrackWithClu4,errfracTrackWithClu3,errfracTrackWithClu4;
 276   Float_t fracTrackWithClu5,fracTrackWithClu6,errfracTrackWithClu5,errfracTrackWithClu6;
 277   Float_t fracExtra,errfracExtra;
 278   Float_t meandEdxTB0,errmeandEdxTB0,meandEdxTB5,errmeandEdxTB5;
 279
 280   ntsdd->SetBranchAddress("nrun",&nrun);
 281   ntsdd->SetBranchAddress("fracTrackWithClu1",&fracTrackWithClu1);
 282   ntsdd->SetBranchAddress("errfracTrackWithClu1",&errfracTrackWithClu1);
 283   ntsdd->SetBranchAddress("fracTrackWithClu2",&fracTrackWithClu2);
 284   ntsdd->SetBranchAddress("errfracTrackWithClu2",&errfracTrackWithClu2);
 285   ntsdd->SetBranchAddress("fracTrackWithClu3",&fracTrackWithClu3);
 286   ntsdd->SetBranchAddress("errfracTrackWithClu3",&errfracTrackWithClu3);
 287   ntsdd->SetBranchAddress("fracTrackWithClu4",&fracTrackWithClu4);
 288   ntsdd->SetBranchAddress("errfracTrackWithClu4",&errfracTrackWithClu4);
 289   ntsdd->SetBranchAddress("fracTrackWithClu5",&fracTrackWithClu5);
 290   ntsdd->SetBranchAddress("errfracTrackWithClu5",&errfracTrackWithClu5);
 291   ntsdd->SetBranchAddress("fracTrackWithClu6",&fracTrackWithClu6);
 292   ntsdd->SetBranchAddress("errfracTrackWithClu6",&errfracTrackWithClu6);
 293
 294   ntsdd->SetBranchAddress("meanTrPts3",&meanTrPts3);
 295   ntsdd->SetBranchAddress("errmeanTrPts3",&errmeanTrPts3);
 296   ntsdd->SetBranchAddress("meanTrPts4",&meanTrPts4);
 297   ntsdd->SetBranchAddress("errmeanTrPts4",&errmeanTrPts4);
 298   ntsdd->SetBranchAddress("minDrTime",&minDrTime);
 299   ntsdd->SetBranchAddress("errminDrTime",&errminDrTime);
 300   ntsdd->SetBranchAddress("meanDrTime",&meanDrTime);
 301   ntsdd->SetBranchAddress("errmeanDrTime",&errmeanDrTime);
 302   ntsdd->SetBranchAddress("fracExtra",&fracExtra);
 303   ntsdd->SetBranchAddress("errfracExtra",&errfracExtra);
 304   ntsdd->SetBranchAddress("meandEdxTB0",&meandEdxTB0);
 305   ntsdd->SetBranchAddress("errmeandEdxTB0",&errmeandEdxTB0);
 306   ntsdd->SetBranchAddress("meandEdxTB5",&meandEdxTB5);
 307   ntsdd->SetBranchAddress("errmeandEdxTB5",&errmeandEdxTB5);
 308
 309   TH1F* histotrp3=new TH1F("histotrp3","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 310   TH1F* histotrp4=new TH1F("histotrp4","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 311   TH1F* histominTime=new TH1F("histominTime","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 312   TH1F* histomeanTime=new TH1F("histomeanTime","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 313   TH1F* histofracExtra=new TH1F("histofracExtra","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 314   TH1F* histodEdxTB0=new TH1F("histodEdxTB0","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 315   TH1F* histodEdxTB5=new TH1F("histodEdxTB5","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 316   TH1F* histoTrackClu1=new TH1F("histoTrackClu1","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 317   TH1F* histoTrackClu2=new TH1F("histoTrackClu2","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 318   TH1F* histoTrackClu3=new TH1F("histoTrackClu3","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 319   TH1F* histoTrackClu4=new TH1F("histoTrackClu4","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 320   TH1F* histoTrackClu5=new TH1F("histoTrackClu5","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 321   TH1F* histoTrackClu6=new TH1F("histoTrackClu6","",(Int_t)ntsdd->GetEntries(),0.,ntsdd->GetEntries());
 322
 323
 324   for(Int_t i=0; i<ntsdd->GetEntries();i++){
 325     ntsdd->GetEvent(i);
 326     histoTrackClu1->SetBinContent(i+1,fracTrackWithClu1);
 327     histoTrackClu1->SetBinError(i+1,errfracTrackWithClu1);
 328     histoTrackClu1->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 329     histoTrackClu2->SetBinContent(i+1,fracTrackWithClu2);
 330     histoTrackClu2->SetBinError(i+1,errfracTrackWithClu2);
 331     histoTrackClu2->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 332     histoTrackClu3->SetBinContent(i+1,fracTrackWithClu3);
 333     histoTrackClu3->SetBinError(i+1,errfracTrackWithClu3);
 334     histoTrackClu3->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 335     histoTrackClu4->SetBinContent(i+1,fracTrackWithClu4);
 336     histoTrackClu4->SetBinError(i+1,errfracTrackWithClu4);
 337     histoTrackClu4->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 338     histoTrackClu5->SetBinContent(i+1,fracTrackWithClu5);
 339     histoTrackClu5->SetBinError(i+1,errfracTrackWithClu5);
 340     histoTrackClu5->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 341     histoTrackClu6->SetBinContent(i+1,fracTrackWithClu6);
 342     histoTrackClu6->SetBinError(i+1,errfracTrackWithClu6);
 343     histoTrackClu6->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 344     histominTime->SetBinContent(i+1,minDrTime);
 345     histominTime->SetBinError(i+1,errminDrTime);
 346     histominTime->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 347     histomeanTime->SetBinContent(i+1,meanDrTime);
 348     histomeanTime->SetBinError(i+1,errmeanDrTime);
 349     histomeanTime->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 350     histotrp3->SetBinContent(i+1,meanTrPts3);
 351     histotrp3->SetBinError(i+1,errmeanTrPts3);
 352     histotrp3->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 353     histotrp4->SetBinContent(i+1,meanTrPts4);
 354     histotrp4->SetBinError(i+1,errmeanTrPts3);
 355     histotrp4->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 356     histofracExtra->SetBinContent(i+1,fracExtra);
 357     histofracExtra->SetBinError(i+1,errfracExtra);
 358     histofracExtra->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 359     histodEdxTB0->SetBinContent(i+1,meandEdxTB0);
 360     histodEdxTB0->SetBinError(i+1,errmeandEdxTB0);
 361     histodEdxTB0->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 362     histodEdxTB5->SetBinContent(i+1,meandEdxTB5);
 363     histodEdxTB5->SetBinError(i+1,errmeandEdxTB5);
 364     histodEdxTB5->GetXaxis()->SetBinLabel(i+1,Form("%d",(Int_t)nrun));
 365   }
 366
 367   gStyle->SetOptStat(0);
 368
 369
 370   TCanvas* c1=new TCanvas("c1","Occupancy");
 371   histotrp3->SetLineColor(1);
 372   histotrp3->SetMarkerStyle(20);
 373   histotrp3->Draw();
 374   histotrp3->SetMinimum(0.);
 375   histotrp4->SetLineColor(2);
 376   histotrp4->SetMarkerColor(2);
 377   histotrp4->SetMarkerStyle(22);
 378   histotrp4->Draw("same");
 379   histotrp3->GetYaxis()->SetTitle("Track Point Occupancy");
 380   TLegend* leg=new TLegend(0.7,0.15,0.88,0.35);
 381   TLegendEntry* ent=leg->AddEntry(histotrp3,"Layer3","PL");
 382   ent=leg->AddEntry(histotrp4,"Layer4","PL");
 383   ent->SetTextColor(histotrp4->GetMarkerColor());
 384   leg->SetFillStyle(0);
 385   leg->Draw();
 386   c1->Update();
 387
 388   TCanvas* c2=new TCanvas("c2","DriftTime",600,900);
 389   c2->Divide(1,2);
 390   c2->cd(1);
 391   histominTime->Draw();
 392   histominTime->SetMinimum(250);
 393   histominTime->SetMaximum(1000);
 394   histominTime->GetYaxis()->SetTitle("Minimum Drift Time (ns)");
 395   c2->cd(2);
 396   histomeanTime->Draw();
 397   histomeanTime->GetYaxis()->SetTitle("Average Drift Time (ns)");
 398   c2->Update();
 399
 400   TCanvas* c3=new TCanvas("c3","ExtraClusters");
 401   histofracExtra->Draw();
 402   histofracExtra->GetYaxis()->SetTitle("Fraction of Extra Clusters");
 403   c3->Update();
 404
 405
 406   TCanvas* c4=new TCanvas("c4","Charge");
 407   histodEdxTB0->SetLineColor(1);
 408   histodEdxTB0->SetMarkerStyle(20);
 409   histodEdxTB0->Draw();
 410   histodEdxTB0->SetMinimum(0.);
 411   histodEdxTB5->SetLineColor(4);
 412   histodEdxTB5->SetMarkerColor(4);
 413   histodEdxTB5->SetMarkerStyle(23);
 414   histodEdxTB5->Draw("same");
 415   histodEdxTB0->GetYaxis()->SetTitle("<dE/dx> (keV/300 #mum)");
 416   TLegend* leg2=new TLegend(0.6,0.15,0.88,0.35);
 417   ent=leg2->AddEntry(histodEdxTB0,"Small drift time","PL");
 418   ent=leg2->AddEntry(histodEdxTB5,"Large drift time","PL");
 419   ent->SetTextColor(histodEdxTB5->GetMarkerColor());
 420   leg2->SetFillStyle(0);
 421   leg2->Draw();
 422   c4->Update();
 423
 424   TCanvas* c5=new TCanvas("c5","TrackWithSDD");
 425   histoTrackClu3->Draw();
 426   histoTrackClu3->SetLineColor(1);
 427   histoTrackClu3->SetMarkerStyle(20);
 428   histoTrackClu3->Draw();
 429   histoTrackClu3->SetMinimum(0.);
 430   histoTrackClu4->SetLineColor(2);
 431   histoTrackClu4->SetMarkerColor(2);
 432   histoTrackClu4->SetMarkerStyle(22);
 433   histoTrackClu4->Draw("same");
 434   histoTrackClu1->SetLineColor(kGray+1);
 435   histoTrackClu1->SetMarkerColor(kGray+1);
 436   histoTrackClu1->SetMarkerStyle(24);
 437   histoTrackClu1->Draw("same");
 438   histoTrackClu2->SetLineColor(kGray+2);
 439   histoTrackClu2->SetMarkerColor(kGray+2);
 440   histoTrackClu2->SetMarkerStyle(26);
 441   histoTrackClu2->Draw("same");
 442   histoTrackClu5->SetLineColor(4);
 443   histoTrackClu5->SetMarkerColor(4);
 444   histoTrackClu5->SetMarkerStyle(29);
 445   histoTrackClu5->Draw("same");
 446   histoTrackClu6->SetLineColor(kBlue+1);
 447   histoTrackClu6->SetMarkerColor(kBlue+1);
 448   histoTrackClu6->SetMarkerStyle(30);
 449   histoTrackClu6->Draw("same");
 450   histoTrackClu3->GetYaxis()->SetTitle("Fraction of Tracks with Point in SDD Layers");
 451   TLegend* leg3=new TLegend(0.7,0.15,0.88,0.35);
 452   ent=leg3->AddEntry(histoTrackClu1,"Layer1","PL");
 453   ent->SetTextColor(histoTrackClu1->GetMarkerColor());
 454   ent=leg3->AddEntry(histoTrackClu2,"Layer2","PL");
 455   ent->SetTextColor(histoTrackClu2->GetMarkerColor());
 456   ent=leg3->AddEntry(histoTrackClu3,"Layer3","PL");
 457   ent->SetTextColor(histoTrackClu3->GetMarkerColor());
 458   ent=leg3->AddEntry(histoTrackClu4,"Layer4","PL");
 459   ent->SetTextColor(histoTrackClu4->GetMarkerColor());
 460   ent=leg3->AddEntry(histoTrackClu5,"Layer5","PL");
 461   ent->SetTextColor(histoTrackClu5->GetMarkerColor());
 462   ent=leg3->AddEntry(histoTrackClu6,"Layer6","PL");
 463   ent->SetTextColor(histoTrackClu6->GetMarkerColor());
 464
 465   leg3->SetFillStyle(0);
 466   leg3->Draw();
 467   c5->Update();
 468
 469 }
 470
 471 Double_t LangausFun(Double_t *x, Double_t *par) {
 472
 473   //Fit parameters:
 474   //par[0]=Width (scale) parameter of Landau density
 475   //par[1]=Most Probable (MP, location) parameter of Landau density
 476   //par[2]=Total area (integral -inf to inf, normalization constant)
 477   //par[3]=Width (sigma) of convoluted Gaussian function
 478   //
 479   //In the Landau distribution (represented by the CERNLIB approximation),
 480   //the maximum is located at x=-0.22278298 with the location parameter=0.
 481   //This shift is corrected within this function, so that the actual
 482   //maximum is identical to the MP parameter.
 483
 484   // Numeric constants
 485   Double_t invsq2pi = 0.3989422804014;   // (2 pi)^(-1/2)
 486   Double_t mpshift  = -0.22278298;       // Landau maximum location
 487
 488   // Control constants
 489   Double_t np = 100.0;      // number of convolution steps
 490   Double_t sc =   5.0;      // convolution extends to +-sc Gaussian sigmas
 491
 492   // Variables
 493   Double_t xx;
 494   Double_t mpc;
 495   Double_t fland;
 496   Double_t sum = 0.0;
 497   Double_t xlow,xupp;
 498   Double_t step;
 499   Double_t i;
 500
 501
 502   // MP shift correction
 503   mpc = par[1] - mpshift * par[0];
 504
 505   // Range of convolution integral
 506   xlow = x[0] - sc * par[3];
 507   xupp = x[0] + sc * par[3];
 508
 509   step = (xupp-xlow) / np;
 510
 511   // Convolution integral of Landau and Gaussian by sum
 512   for(i=1.0; i<=np/2; i++) {
 513     xx = xlow + (i-.5) * step;
 514     fland = TMath::Landau(xx,mpc,par[0]) / par[0];
 515     sum += fland * TMath::Gaus(x[0],xx,par[3]);
 516
 517     xx = xupp - (i-.5) * step;
 518     fland = TMath::Landau(xx,mpc,par[0]) / par[0];
 519     sum += fland * TMath::Gaus(x[0],xx,par[3]);
 520   }
 521
 522   return (par[2] * step * sum * invsq2pi / par[3]);
 523 }