| 820252d7 |
1 | void AliVertexerTracksTest(Double_t nSigma=3., |
| fee9ef0d |
2 | Bool_t useMeanVtx=kFALSE, |
| 3 | Int_t itsin=1, |
| 4 | Int_t itsrefit=1, |
| 5 | Double_t maxd0z0=0.5, |
| 6 | Int_t minitscls=5, |
| 7 | Int_t mintracks=1, |
| 8 | TString outname="AliVertexerTracksTest.root", |
| 9 | Bool_t onlyfit=kFALSE) { |
| 820252d7 |
10 | //------------------------------------------------------------------------ |
| 11 | // Run vertex reconstruction and store results in histos and ntuple |
| 12 | //------------------------------------------------------------------------ |
| fee9ef0d |
13 | // WITHOUT Kinematics.root |
| 14 | // |
| 820252d7 |
15 | if (gAlice) { |
| 16 | delete gAlice->GetRunLoader(); |
| 17 | delete gAlice; |
| 18 | gAlice=0; |
| 19 | } |
| 20 | |
| 21 | AliRunLoader *rl = AliRunLoader::Open("galice.root"); |
| 22 | if (rl == 0x0) { |
| 23 | cerr<<"Can not open session"<<endl; |
| 24 | return; |
| 25 | } |
| 26 | Int_t retval = rl->LoadgAlice(); |
| 27 | if (retval) { |
| 28 | cerr<<"LoadgAlice returned error"<<endl; |
| 29 | delete rl; |
| 30 | return; |
| 31 | } |
| 32 | retval = rl->LoadHeader(); |
| 33 | if (retval) { |
| 34 | cerr<<"LoadHeader returned error"<<endl; |
| 35 | delete rl; |
| 36 | return; |
| 37 | } |
| 38 | gAlice=rl->GetAliRun(); |
| fee9ef0d |
39 | |
| 40 | //rl->LoadKinematics(); |
| 41 | |
| 820252d7 |
42 | // Get field from galice.root |
| 43 | AliMagF *fiel = (AliMagF*)gAlice->Field(); |
| 44 | // Set the conversion constant between curvature and Pt |
| 45 | AliTracker::SetFieldMap(fiel,kTRUE); |
| 46 | |
| 47 | //**** Switch on the PID class |
| 48 | AliPID pid; |
| 49 | |
| 50 | Int_t nEvents = (Int_t)rl->GetNumberOfEvents(); |
| 51 | |
| 52 | Double_t truevtx[3]; |
| 53 | Double_t vtx[3]; |
| 54 | Double_t errvtx[3]; |
| 55 | Double_t diffX,diffY,diffZ; |
| 56 | Double_t diffXerr,diffYerr,diffZerr; |
| fee9ef0d |
57 | Float_t multiplicity; |
| 58 | Float_t chi2red; |
| 59 | Int_t ntracklets; |
| 820252d7 |
60 | Int_t nc; |
| fee9ef0d |
61 | Int_t triggered; |
| 820252d7 |
62 | |
| 63 | // Histograms |
| 64 | TH1F *hdiffX = new TH1F("hdiffX","x_{found} - x_{true} [#mum]",1000,-5000,5000); |
| 65 | TH1F *hdiffY = new TH1F("hdiffY","y_{found} - y_{true} [#mum]",1000,-5000,5000); |
| 66 | TH1F *hdiffZ = new TH1F("hdiffZ","z_{found} - z_{true} [#mum]",1000,-5000,5000); |
| 67 | |
| 68 | TH1F *hdiffXerr = new TH1F("hdiffXerr","#Delta x/#sigma_{x}",100,-5,5); |
| 69 | TH1F *hdiffYerr = new TH1F("hdiffYerr","#Delta y/#sigma_{y}",100,-5,5); |
| 70 | TH1F *hdiffZerr = new TH1F("hdiffZerr","#Delta z/#sigma_{z}",100,-5,5); |
| 71 | |
| 72 | //TNtple |
| fee9ef0d |
73 | TNtuple *ntVtxRes = new TNtuple("ntVtxRes","Vertex Resolution's Ntupla with multiplicity","triggered:ntracks:nitstracks:nitstracks5or6:diffX:diffY:diffZ:diffXerr:diffYerr:diffZerr:multiplicity:nc:zMC:chi2red"); |
| 820252d7 |
74 | |
| 75 | |
| 76 | |
| 77 | // ----------- Create vertexer -------------------------- |
| 78 | AliESDVertex *initVertex = 0; |
| 79 | if(useMeanVtx) { |
| 80 | // open the mean vertex |
| 81 | TFile *invtx = new TFile("AliESDVertexMean.root"); |
| 82 | initVertex = (AliESDVertex*)invtx->Get("vtxmean"); |
| 83 | invtx->Close(); |
| 84 | delete invtx; |
| 85 | } else { |
| 86 | Double_t pos[3]={0.5,0.5,0.}; |
| 87 | Double_t err[3]={3.,3.,5.}; |
| 88 | initVertex = new AliESDVertex(pos,err); |
| 89 | } |
| 28e4388a |
90 | AliVertexerTracks *vertexer = new AliVertexerTracks(AliTracker::GetBz()); |
| fee9ef0d |
91 | vertexer->SetDebug(1); // set to 1 to see what it does |
| 820252d7 |
92 | vertexer->SetVtxStart(initVertex); |
| 0bf2e2b4 |
93 | if(!useMeanVtx) vertexer->SetConstraintOff(); |
| fee9ef0d |
94 | if(onlyfit) vertexer->SetOnlyFitter(); |
| 820252d7 |
95 | vertexer->SetNSigmad0(nSigma); |
| fee9ef0d |
96 | if(!itsrefit) vertexer->SetITSrefitNotRequired(); |
| 97 | if(!itsin) vertexer->SetITSNotRequired(); |
| 98 | vertexer->SetMinTracks(mintracks); |
| 99 | vertexer->SetMinITSClusters(minitscls); |
| 100 | vertexer->SetMaxd0z0(maxd0z0); |
| 820252d7 |
101 | //cout<<" Nsigma: "<<vertexer->GetNSigmad0()<<endl; |
| 820252d7 |
102 | //---------------------------------------------------------- |
| 103 | |
| fee9ef0d |
104 | |
| 820252d7 |
105 | if(gSystem->AccessPathName("AliESDs.root",kFileExists)) { |
| 106 | printf("AliESDs.root not found!\n"); |
| 107 | return; |
| 108 | } |
| 109 | TFile *fin = TFile::Open("AliESDs.root"); |
| 64cf164e |
110 | AliESDEvent *esd = new AliESDEvent(); |
| 820252d7 |
111 | TTree *esdTree = (TTree*)fin->Get("esdTree"); |
| 112 | if(!esdTree) return; |
| 64cf164e |
113 | esd->ReadFromTree(esdTree); |
| 820252d7 |
114 | Int_t events = esdTree->GetEntries(); |
| 115 | printf("Number of events in ESD tree: %d\n",events); |
| 116 | |
| 117 | TArrayF o; |
| 118 | |
| 119 | for(Int_t iev=0; iev<events; iev++) { //LOOP ON EVENTS |
| 120 | printf("-------------- EVENT %d --------------------\n",iev); |
| 121 | |
| 122 | diffX=99999; |
| 123 | diffY=99999; |
| 124 | diffZ=99999; |
| 125 | diffXerr=99999; |
| 126 | diffYerr=99999; |
| 127 | diffZerr=99999; |
| 128 | nc=0; |
| 129 | |
| 130 | //================================================= |
| 131 | // LOOK IN THE SIMULATION |
| 132 | // true vertex position |
| 133 | Int_t npart = (Int_t)gAlice->GetEvent(iev); |
| 134 | printf("particles %d\n",npart); |
| 135 | AliHeader *header = (AliHeader*)rl->GetHeader(); |
| 136 | AliGenPythiaEventHeader *pyheader = (AliGenPythiaEventHeader*)header->GenEventHeader(); |
| 137 | pyheader->PrimaryVertex(o); |
| 138 | truevtx[0] = o[0]; |
| 139 | truevtx[1] = o[1]; |
| 140 | truevtx[2] = o[2]; |
| 141 | printf("True Vertex: (%f, %f, %f)\n",o[0],o[1],o[2]); |
| 142 | |
| 143 | Double_t dNchdy = 0.; |
| 144 | multiplicity=0.; |
| 145 | Int_t nitstracks = 0; |
| 820252d7 |
146 | Int_t nitstracks1 = 0; |
| 147 | Int_t nitstracks2 = 0; |
| 148 | Int_t nitstracks3 = 0; |
| 149 | Int_t nitstracks4 = 0; |
| 150 | Int_t nitstracks5 = 0; |
| 151 | Int_t nitstracks6 = 0; |
| 152 | Int_t nitstracks5or6 = 0; |
| 820252d7 |
153 | |
| 154 | |
| 155 | esdTree->GetEvent(iev); |
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156 | triggered=0; |
| 157 | chi2red=0.; |
| 158 | ULong64_t triggerMask = esd->GetTriggerMask(); |
| 159 | if(triggerMask&32 && ((triggerMask&1) || (triggerMask&2))) triggered=1; |
| 160 | |
| 161 | // get # of tracklets |
| 162 | AliMultiplicity *alimult = esd->GetMultiplicity(); |
| 163 | if(alimult) { |
| 164 | ntracklets = alimult->GetNumberOfTracklets(); |
| 165 | for(Int_t l=0;l<alimult->GetNumberOfTracklets();l++) |
| 166 | if(alimult->GetDeltaPhi(l)<-9998.) ntracklets--; |
| 167 | } else { |
| 168 | ntracklets = 0; |
| 169 | } |
| 170 | printf("Number of SPD tracklets in ESD %d : %d\n",iev,ntracklets); |
| 171 | multiplicity = (Float_t)ntracklets; |
| 172 | |
| 820252d7 |
173 | Int_t ntracks = esd->GetNumberOfTracks(); |
| 174 | printf("Number of tracks in ESD %d : %d\n",iev,ntracks); |
| 175 | if(ntracks==0) { |
| fee9ef0d |
176 | ntVtxRes->Fill(triggered,ntracks,nitstracks,nitstracks5or6,diffX,diffY,diffZ,diffXerr,diffYerr,diffZerr,multiplicity,nc,truevtx[2],chi2red); |
| 820252d7 |
177 | continue; |
| 178 | } |
| 179 | |
| 180 | // VERTEX |
| 181 | AliESDVertex *vertex = (AliESDVertex*)vertexer->FindPrimaryVertex(esd); |
| 820252d7 |
182 | |
| 183 | nc = (Int_t)vertex->GetNContributors(); |
| fee9ef0d |
184 | if(nc>=2) chi2red = vertex->GetChi2toNDF(); |
| 820252d7 |
185 | printf("nc = %d\n",nc); |
| 186 | |
| 187 | |
| 188 | // count ITS tracks |
| 189 | for(Int_t itrk=0; itrk<ntracks; itrk++) { |
| 190 | AliESDtrack *esdtrack = (AliESDtrack*)esd->GetTrack(itrk); |
| 191 | UInt_t status = esdtrack->GetStatus(); |
| 192 | // only tracks found also in ITS |
| 193 | if(! (status&AliESDtrack::kITSin) ) continue; |
| 194 | nitstracks++; |
| 195 | Int_t npts = (Int_t)esdtrack->GetNcls(0); |
| 196 | if(npts==6) {nitstracks6++;nitstracks5or6++;} |
| 197 | if(npts==5) {nitstracks5++;nitstracks5or6++;} |
| 198 | if(npts==4) nitstracks4++; |
| 199 | if(npts==3) nitstracks3++; |
| 200 | if(npts==2) nitstracks2++; |
| 201 | if(npts==1) nitstracks1++; |
| 820252d7 |
202 | } |
| 203 | printf("Number of kITSin tracks in ESD %d : %d\n",iev,nitstracks); |
| 204 | printf(" 6 pts: %d\n",nitstracks6); |
| 205 | printf(" 5 pts: %d\n",nitstracks5); |
| 206 | printf(" 4 pts: %d\n",nitstracks4); |
| 207 | printf(" 3 pts: %d\n",nitstracks3); |
| 208 | printf(" 2 pts: %d\n",nitstracks2); |
| 209 | printf(" 1 pts: %d\n",nitstracks1); |
| 820252d7 |
210 | |
| 211 | |
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212 | if(nc>=1) { |
| 820252d7 |
213 | vertex->GetXYZ(vtx); |
| 214 | vertex->GetSigmaXYZ(errvtx); |
| 215 | diffX = 10000.* (vtx[0] - truevtx[0]); |
| 216 | diffY = 10000.* (vtx[1] - truevtx[1]); |
| 217 | diffZ = 10000.* (vtx[2] - truevtx[2]); |
| 218 | hdiffX->Fill(diffX); |
| 219 | hdiffY->Fill(diffY); |
| 220 | hdiffZ->Fill(diffZ); |
| 221 | diffXerr = diffX/errvtx[0]/10000.; |
| 222 | diffYerr = diffY/errvtx[1]/10000.; |
| 223 | diffZerr = diffZ/errvtx[2]/10000.; |
| 224 | hdiffXerr->Fill(diffXerr); |
| 225 | hdiffYerr->Fill(diffYerr); |
| 226 | hdiffZerr->Fill(diffZerr); |
| 227 | } |
| 228 | |
| fee9ef0d |
229 | ntVtxRes->Fill(triggered,ntracks,nitstracks,nitstracks5or6,diffX,diffY,diffZ,diffXerr,diffYerr,diffZerr,multiplicity,(Float_t)nc,truevtx[2],chi2red); |
| 820252d7 |
230 | |
| 231 | } // END LOOP ON EVENTS |
| 232 | |
| 233 | |
| 234 | delete esdTree; |
| 235 | delete fin; |
| 236 | delete vertexer; |
| 237 | delete initVertex; |
| 238 | |
| 239 | // Output file |
| 240 | TFile *fout = new TFile(outname.Data(),"recreate"); |
| 241 | ntVtxRes->Write(); |
| 242 | hdiffX->Write(); |
| 243 | hdiffY->Write(); |
| 244 | hdiffZ->Write(); |
| 245 | hdiffXerr->Write(); |
| 246 | hdiffYerr->Write(); |
| 247 | hdiffZerr->Write(); |
| 248 | fout->Close(); |
| 249 | |
| 250 | return; |
| 251 | } |
| fee9ef0d |
252 | //------------------------------------------------------------------------ |
| 253 | void VertexForOneEvent(Int_t iev=0, |
| 254 | Double_t nSigma=3., |
| 255 | Bool_t useMeanVtx=kFALSE) { |
| 256 | //------------------------------------------------------------------------ |
| 257 | // Run vertex reconstruction for event iev |
| 258 | //------------------------------------------------------------------------ |
| 259 | |
| 260 | if (gAlice) { |
| 261 | delete gAlice->GetRunLoader(); |
| 262 | delete gAlice; |
| 263 | gAlice=0; |
| 264 | } |
| 265 | |
| 266 | AliRunLoader *rl = AliRunLoader::Open("galice.root"); |
| 267 | if (rl == 0x0) { |
| 268 | cerr<<"Can not open session"<<endl; |
| 269 | return; |
| 270 | } |
| 271 | Int_t retval = rl->LoadgAlice(); |
| 272 | if (retval) { |
| 273 | cerr<<"LoadgAlice returned error"<<endl; |
| 274 | delete rl; |
| 275 | return; |
| 276 | } |
| 277 | retval = rl->LoadHeader(); |
| 278 | if (retval) { |
| 279 | cerr<<"LoadHeader returned error"<<endl; |
| 280 | delete rl; |
| 281 | return; |
| 282 | } |
| 283 | gAlice=rl->GetAliRun(); |
| 284 | //rl->LoadKinematics(); |
| 285 | // Get field from galice.root |
| 286 | AliMagF *fiel = (AliMagF*)gAlice->Field(); |
| 287 | // Set the conversion constant between curvature and Pt |
| 288 | AliTracker::SetFieldMap(fiel,kTRUE); |
| 289 | |
| 290 | Double_t truevtx[3]; |
| 291 | Double_t vtx[3]; |
| 292 | Double_t errvtx[3]; |
| 293 | Double_t diffX,diffY,diffZ; |
| 294 | Double_t diffXerr,diffYerr,diffZerr; |
| 295 | Double_t multiplicity; |
| 296 | Int_t nc; |
| 297 | |
| 298 | // ----------- Create vertexer -------------------------- |
| 299 | AliESDVertex *initVertex = 0; |
| 300 | if(useMeanVtx) { |
| 301 | // open the mean vertex |
| 302 | TFile *invtx = new TFile("AliESDVertexMean.root"); |
| 303 | initVertex = (AliESDVertex*)invtx->Get("vtxmean"); |
| 304 | invtx->Close(); |
| 305 | delete invtx; |
| 306 | } else { |
| 307 | Double_t pos[3]={0.,-0.,0.}; |
| 308 | Double_t err[3]={3.,3.,5.}; |
| 309 | initVertex = new AliESDVertex(pos,err); |
| 310 | } |
| 28e4388a |
311 | AliVertexerTracks *vertexer = new AliVertexerTracks(AliTracker::GetBz()); |
| fee9ef0d |
312 | //vertexer->SetITSrefitNotRequired(); |
| 313 | vertexer->SetVtxStart(initVertex); |
| 0bf2e2b4 |
314 | if(!useMeanVtx) vertexer->SetConstraintOff(); |
| fee9ef0d |
315 | //vertexer->SetMinTracks(2); |
| 316 | //vertexer->SetNSigmad0(nSigma); |
| 317 | //cout<<" Nsigma: "<<vertexer->GetNSigmad0()<<endl; |
| 318 | //vertexer->SetFinderAlgorithm(2); |
| 319 | //vertexer->SetDCAcut(0.1); // 1 mm |
| 320 | vertexer->SetDebug(1); // set to 1 to see what it does |
| 321 | //---------------------------------------------------------- |
| 322 | |
| 323 | if(gSystem->AccessPathName("AliESDs.root",kFileExists)) { |
| 324 | printf("AliESDs.root not found!\n"); |
| 325 | return; |
| 326 | } |
| 327 | TFile *fin = TFile::Open("AliESDs.root"); |
| 64cf164e |
328 | AliESDEvent *esd = new AliESDEvent(); |
| fee9ef0d |
329 | TTree *esdTree = (TTree*)fin->Get("esdTree"); |
| 330 | if(!esdTree) return; |
| 64cf164e |
331 | esd->ReadFromTree(esdTree); |
| fee9ef0d |
332 | |
| 333 | TArrayF o; |
| 334 | |
| 335 | nc=0; |
| 336 | |
| 337 | //================================================= |
| 338 | // LOOK IN THE SIMULATION |
| 339 | // true vertex position |
| 340 | Int_t npart = (Int_t)gAlice->GetEvent(iev); |
| 341 | printf("particles %d\n",npart); |
| 342 | AliHeader *header = (AliHeader*)rl->GetHeader(); |
| 343 | AliGenPythiaEventHeader *pyheader = (AliGenPythiaEventHeader*)header->GenEventHeader(); |
| 344 | pyheader->PrimaryVertex(o); |
| 345 | truevtx[0] = o[0]; |
| 346 | truevtx[1] = o[1]; |
| 347 | truevtx[2] = o[2]; |
| 348 | printf("True Vertex: (%f, %f, %f)\n",o[0],o[1],o[2]); |
| 349 | |
| 350 | esdTree->GetEvent(iev); |
| 351 | Int_t ntracks = esd->GetNumberOfTracks(); |
| 352 | printf("Number of tracks in ESD %d : %d\n",iev,ntracks); |
| 353 | |
| 354 | // VERTEX |
| 355 | AliESDVertex *vertex = (AliESDVertex*)vertexer->FindPrimaryVertex(esd); |
| 356 | nc = (Int_t)vertex->GetNContributors(); |
| 357 | |
| 358 | |
| 359 | Int_t nitstracks = 0; |
| 360 | Int_t nitstracks1 = 0; |
| 361 | Int_t nitstracks2 = 0; |
| 362 | Int_t nitstracks3 = 0; |
| 363 | Int_t nitstracks4 = 0; |
| 364 | Int_t nitstracks5 = 0; |
| 365 | Int_t nitstracks6 = 0; |
| 366 | Int_t nitstracks5or6 = 0; |
| 367 | |
| 368 | // count ITS tracks |
| 369 | for(Int_t itrk=0; itrk<ntracks; itrk++) { |
| 370 | AliESDtrack *esdtrack = (AliESDtrack*)esd->GetTrack(itrk); |
| 371 | UInt_t status = esdtrack->GetStatus(); |
| 372 | // only tracks found also in ITS |
| 373 | if(! (status&AliESDtrack::kITSrefit) ) continue; |
| 374 | nitstracks++; |
| 375 | Int_t npts = (Int_t)esdtrack->GetNcls(0); |
| 376 | if(npts==6) {nitstracks6++;nitstracks5or6++;} |
| 377 | if(npts==5) {nitstracks5++;nitstracks5or6++;} |
| 378 | if(npts==4) nitstracks4++; |
| 379 | if(npts==3) nitstracks3++; |
| 380 | if(npts==2) nitstracks2++; |
| 381 | if(npts==1) nitstracks1++; |
| 382 | } |
| 383 | printf("Number of kITSrefit tracks in ESD %d : %d\n",iev,nitstracks); |
| 384 | printf(" 6 pts: %d\n",nitstracks6); |
| 385 | printf(" 5 pts: %d\n",nitstracks5); |
| 386 | printf(" 4 pts: %d\n",nitstracks4); |
| 387 | printf(" 3 pts: %d\n",nitstracks3); |
| 388 | printf(" 2 pts: %d\n",nitstracks2); |
| 389 | printf(" 1 pts: %d\n",nitstracks1); |
| 390 | |
| 391 | |
| 392 | delete esdTree; |
| 393 | delete fin; |
| 394 | delete vertexer; |
| 395 | delete initVertex; |
| 396 | |
| 397 | return; |
| 398 | } |
| 399 | //---------------------------------------------------------------------------- |
| 820252d7 |
400 | Double_t FitFunc(Double_t *x,Double_t *par) { |
| 401 | return par[0]+par[1]/TMath::Sqrt(x[0]); |
| 402 | } |
| 403 | Int_t GetBin(Float_t mult) { |
| 404 | if(mult<5.) return 0; |
| 405 | if(mult<7.) return 1; |
| 406 | if(mult<12.) return 2; |
| 407 | if(mult<15.) return 3; |
| 408 | if(mult<22.) return 4; |
| 409 | return 5; |
| 410 | } |
| fee9ef0d |
411 | Int_t GetBinTracklets(Float_t tracklets) { |
| 412 | if(tracklets<2.*5.) return 0; |
| 413 | if(tracklets<2.*7.) return 1; |
| 414 | if(tracklets<2.*12.) return 2; |
| 415 | if(tracklets<2.*15.) return 3; |
| 416 | if(tracklets<2.*22.) return 4; |
| 417 | return 5; |
| 418 | } |
| 419 | Int_t GetBinZ(Float_t z) { |
| 420 | if(z<-13.) return 0; |
| 421 | if(z<-11.) return 1; |
| 422 | if(z<-9.) return 2; |
| 423 | if(z<-7.) return 3; |
| 424 | if(z<-5.) return 4; |
| 425 | if(z<-3.) return 5; |
| 426 | if(z<-1.) return 6; |
| 427 | if(z<1.) return 7; |
| 428 | if(z<3.) return 8; |
| 429 | if(z<5.) return 9; |
| 430 | if(z<7.) return 10; |
| 431 | if(z<9.) return 11; |
| 432 | if(z<11.) return 12; |
| 433 | if(z<13.) return 13; |
| 434 | return 14; |
| 435 | } |
| 436 | //---------------------------------------------------------------------------- |
| 437 | void PlotVtxRes(TString inname="AliVertexerTracksTest.root") { |
| 820252d7 |
438 | //--------------------------------------------------------------------- |
| 439 | // Plot efficiency, resolutions, pulls |
| 440 | // [at least 10k pp events are needed] |
| 441 | //--------------------------------------------------------------------- |
| 442 | |
| fee9ef0d |
443 | Float_t zMCmin=0.; |
| 444 | Float_t zMCmax=20.; |
| 445 | Float_t ncminforzshift=1.; |
| 446 | |
| 820252d7 |
447 | gStyle->SetOptStat(0); |
| 448 | gStyle->SetOptFit(10001); |
| 449 | |
| 450 | Int_t nEvVtx=0; |
| 451 | Int_t nEvNoVtx=0; |
| 452 | Int_t ev,nUsedTrks; |
| fee9ef0d |
453 | Float_t nESDTrks,nTrks,nTrks5or6,ntracklets; |
| 454 | Float_t diffX,diffY,diffZ,diffXerr,diffYerr,diffZerr,zMC,nc; |
| 455 | Float_t triggered; |
| 456 | |
| 820252d7 |
457 | |
| 458 | // |
| 459 | // HISTOGRAMS |
| 460 | // |
| 461 | TH1F *hdx = new TH1F("hdx","",50,-600,600); |
| 462 | hdx->SetXTitle("#Delta x [#mu m]"); |
| 463 | hdx->SetYTitle("events"); |
| 464 | // |
| 465 | TH1F *hdy = new TH1F("hdy","",50,-600,600); |
| 466 | hdy->SetXTitle("#Delta y [#mu m]"); |
| 467 | hdy->SetYTitle("events"); |
| 468 | // |
| fee9ef0d |
469 | TH1F *hdz = new TH1F("hdz","",200,-600,600); |
| 820252d7 |
470 | hdz->SetXTitle("#Delta z [#mu m]"); |
| 471 | hdz->SetYTitle("events"); |
| 472 | // |
| fee9ef0d |
473 | TH1F *hzMCVtx = new TH1F("hzMCVtx","events w/ vertex",30,-15,15); |
| 474 | hzMCVtx->SetXTitle("z_{true} [cm]"); |
| 475 | hzMCVtx->SetYTitle("events"); |
| 476 | hzMCVtx->Sumw2(); |
| 477 | // |
| 478 | TH1F *hzMCNoVtx = new TH1F("hzMCNoVtx","events w/o vertex",30,-15,15); |
| 479 | hzMCNoVtx->SetXTitle("z_{true} [cm]"); |
| 480 | hzMCNoVtx->SetYTitle("events"); |
| 481 | hzMCNoVtx->Sumw2(); |
| 482 | // |
| 483 | TH1F *hTrackletsVtx = new TH1F("hTrackletsVtx","events w/ vertex",51,-0.5,50.5); |
| 484 | hTrackletsVtx->SetXTitle("SPD tracklets"); |
| 485 | hTrackletsVtx->SetYTitle("events"); |
| 486 | // |
| 487 | TH1F *hTrackletsNoVtx = new TH1F("hTrackletsNoVtx","events w/o vertex",51,-0.5,50.5); |
| 488 | hTrackletsNoVtx->SetXTitle("SPD tracklets"); |
| 489 | hTrackletsNoVtx->SetYTitle("events"); |
| 490 | // |
| 820252d7 |
491 | TH1F *hTracksVtx = new TH1F("hTracksVtx","events w/ vertex",51,-0.5,50.5); |
| 492 | hTracksVtx->SetXTitle("Number of reco tracks in TPC&ITS"); |
| 493 | hTracksVtx->SetYTitle("events"); |
| 494 | // |
| 495 | TH1F *hTracksNoVtx = new TH1F("hTracksNoVtx","events w/o vertex",51,-0.5,50.5); |
| 496 | hTracksNoVtx->SetXTitle("Number of reco tracks in TPC&ITS"); |
| 497 | hTracksNoVtx->SetYTitle("events"); |
| 498 | // |
| 499 | TH1F *hTracksVtx5or6 = new TH1F("hTracksVtx5or6","events w/ vertex",51,-0.5,50.5); |
| fee9ef0d |
500 | hTracksVtx5or6->SetXTitle("Number of reco tracks in TPC&ITS(cls>=5)"); |
| 820252d7 |
501 | hTracksVtx5or6->SetYTitle("events"); |
| 502 | // |
| 503 | TH1F *hTracksNoVtx5or6 = new TH1F("hTracksNoVtx5or6","events w/o vertex",51,-0.5,50.5); |
| fee9ef0d |
504 | hTracksNoVtx5or6->SetXTitle("Number of reco tracks in TPC&ITS(cls>=5)"); |
| 820252d7 |
505 | hTracksNoVtx5or6->SetYTitle("events"); |
| 506 | // |
| 820252d7 |
507 | TH1F *hPullsx = new TH1F("hPullsx","",50,-7.,7.); |
| 508 | hPullsx->SetXTitle("#Delta x/#sqrt{<x,x>}"); |
| 509 | hPullsx->SetYTitle("events"); |
| 510 | // |
| 511 | TH1F *hPullsy = new TH1F("hPullsy","",50,-7.,7.); |
| 512 | hPullsy->SetXTitle("#Delta y/#sqrt{<y,y>}"); |
| 513 | hPullsy->SetYTitle("events"); |
| 514 | // |
| 515 | TH1F *hPullsz = new TH1F("hPullsz","",50,-7.,7.); |
| 516 | hPullsz->SetXTitle("#Delta z/#sqrt{<z,z>}"); |
| 517 | hPullsz->SetYTitle("events"); |
| 518 | // |
| fee9ef0d |
519 | TProfile *hntrackletsVSzMC = new TProfile("hntrackletsVSzMC","",30,-15,15,0,30); |
| 520 | hntrackletsVSzMC->SetXTitle("z_{true} [cm]"); |
| 521 | hntrackletsVSzMC->SetYTitle("<SPD tracklets>"); |
| 522 | // |
| 523 | TProfile *hnitstracksVSzMC = new TProfile("hnitstracksVSzMC","",30,-15,15,0,30); |
| 524 | hnitstracksVSzMC->SetXTitle("z_{true} [cm]"); |
| 525 | hnitstracksVSzMC->SetYTitle("<tracks TPC&ITS>"); |
| 526 | // |
| 527 | TProfile *hnitstracks5or6VSzMC = new TProfile("hnitstracks5or6VSzMC","",30,-15,15,0,30); |
| 528 | hnitstracks5or6VSzMC->SetXTitle("z_{true} [cm]"); |
| 529 | hnitstracks5or6VSzMC->SetYTitle("<tracks TPC&ITS(cls>=5)>"); |
| 820252d7 |
530 | |
| 531 | Double_t mult[6]={0,0,0,0,0,0}; |
| 532 | Double_t mult2[6]={0,0,0,0,0,0}; |
| 533 | Double_t sigmamult[6]={0,0,0,0,0,0}; |
| 534 | Double_t sigmamult2[6]={0,0,0,0,0,0}; |
| 535 | Double_t tottracks[6]={0,0,0,0,0,0}; |
| 536 | Double_t fittrks[6]={0,0,0,0,0,0}; |
| 537 | Double_t tracks[6]={0,0,0,0,0,0}; |
| 538 | Double_t etracks[6]={0,0,0,0,0,0}; |
| 539 | Double_t xres[6]={0,0,0,0,0,0}; |
| 540 | Double_t exres[6]={0,0,0,0,0,0}; |
| 541 | Double_t yres[6]={0,0,0,0,0,0}; |
| 542 | Double_t eyres[6]={0,0,0,0,0,0}; |
| 543 | Double_t zres[6]={0,0,0,0,0,0}; |
| 544 | Double_t ezres[6]={0,0,0,0,0,0}; |
| 545 | Double_t xpull[6]={0,0,0,0,0,0}; |
| 546 | Double_t expull[6]={0,0,0,0,0,0}; |
| 547 | Double_t ypull[6]={0,0,0,0,0,0}; |
| 548 | Double_t eypull[6]={0,0,0,0,0,0}; |
| 549 | Double_t zpull[6]={0,0,0,0,0,0}; |
| 550 | Double_t ezpull[6]={0,0,0,0,0,0}; |
| 551 | Int_t evts[6]={0,0,0,0,0,0}; |
| 552 | Int_t totevts[6]={0,0,0,0,0,0}; |
| 553 | Int_t vtx[6]={0,0,0,0,0,0}; |
| 554 | Int_t all[6]={0,0,0,0,0,0}; |
| 555 | Double_t probVtx[6]={0,0,0,0,0,0}; |
| 556 | Double_t eprobVtx[6]={0,0,0,0,0,0}; |
| fee9ef0d |
557 | Int_t bin,zbin; |
| 820252d7 |
558 | // |
| 559 | // OTHER HISTOGRAMS |
| 560 | // |
| 561 | TH1F *hdx0 = new TH1F("hdx0","x resolution - bin 0",50,-500,500); |
| 562 | TH1F *hdx1 = new TH1F("hdx1","x resolution - bin 1",50,-500,500); |
| 563 | TH1F *hdx2 = new TH1F("hdx2","x resolution - bin 2",50,-500,500); |
| 564 | TH1F *hdx3 = new TH1F("hdx3","x resolution - bin 3",50,-400,400); |
| 565 | TH1F *hdx4 = new TH1F("hdx4","x resolution - bin 4",50,-300,300); |
| 566 | TH1F *hdx5 = new TH1F("hdx5","x resolution - bin 5",50,-300,300); |
| 567 | TH1F *hdy0 = new TH1F("hdy0","y resolution - bin 0",50,-500,500); |
| 568 | TH1F *hdy1 = new TH1F("hdy1","y resolution - bin 1",50,-500,500); |
| 569 | TH1F *hdy2 = new TH1F("hdy2","y resolution - bin 2",50,-500,500); |
| 570 | TH1F *hdy3 = new TH1F("hdy3","y resolution - bin 3",50,-400,400); |
| 571 | TH1F *hdy4 = new TH1F("hdy4","y resolution - bin 4",50,-300,300); |
| 572 | TH1F *hdy5 = new TH1F("hdy5","y resolution - bin 5",50,-300,300); |
| 573 | TH1F *hdz0 = new TH1F("hdz0","z resolution - bin 0",50,-1000,1000); |
| 574 | TH1F *hdz1 = new TH1F("hdz1","z resolution - bin 1",50,-800,800); |
| 575 | TH1F *hdz2 = new TH1F("hdz2","z resolution - bin 2",50,-800,800); |
| 576 | TH1F *hdz3 = new TH1F("hdz3","z resolution - bin 3",50,-600,600); |
| 577 | TH1F *hdz4 = new TH1F("hdz4","z resolution - bin 4",50,-500,500); |
| 578 | TH1F *hdz5 = new TH1F("hdz5","z resolution - bin 5",50,-500,500); |
| fee9ef0d |
579 | // |
| 580 | TH1F *hdz_z = NULL; hdz_z = new TH1F[15]; |
| 581 | for(Int_t l=0;l<15;l++) hdz_z[l] = *hdz; |
| 582 | |
| 820252d7 |
583 | |
| 584 | TH1F *hpx0 = new TH1F("hpx0","x pull - bin 0",50,-7,7); |
| 585 | TH1F *hpx1 = new TH1F("hpx1","x pull - bin 1",50,-7,7); |
| 586 | TH1F *hpx2 = new TH1F("hpx2","x pull - bin 2",50,-7,7); |
| 587 | TH1F *hpx3 = new TH1F("hpx3","x pull - bin 3",50,-7,7); |
| 588 | TH1F *hpx4 = new TH1F("hpx4","x pull - bin 4",50,-7,7); |
| 589 | TH1F *hpx5 = new TH1F("hpx5","x pull - bin 5",50,-7,7); |
| 590 | TH1F *hpy0 = new TH1F("hpy0","y pull - bin 0",50,-7,7); |
| 591 | TH1F *hpy1 = new TH1F("hpy1","y pull - bin 1",50,-7,7); |
| 592 | TH1F *hpy2 = new TH1F("hpy2","y pull - bin 2",50,-7,7); |
| 593 | TH1F *hpy3 = new TH1F("hpy3","y pull - bin 3",50,-7,7); |
| 594 | TH1F *hpy4 = new TH1F("hpy4","y pull - bin 4",50,-7,7); |
| 595 | TH1F *hpy5 = new TH1F("hpy5","y pull - bin 5",50,-7,7); |
| 596 | TH1F *hpz0 = new TH1F("hpz0","z pull - bin 0",50,-7,7); |
| 597 | TH1F *hpz1 = new TH1F("hpz1","z pull - bin 1",50,-7,7); |
| 598 | TH1F *hpz2 = new TH1F("hpz2","z pull - bin 2",50,-7,7); |
| 599 | TH1F *hpz3 = new TH1F("hpz3","z pull - bin 3",50,-7,7); |
| 600 | TH1F *hpz4 = new TH1F("hpz4","z pull - bin 4",50,-7,7); |
| 601 | TH1F *hpz5 = new TH1F("hpz5","z pull - bin 5",50,-7,7); |
| 602 | |
| 603 | |
| 604 | TH1F *hmult = new TH1F("hmult","hmult",50,-0.5,49.5); |
| 605 | |
| fee9ef0d |
606 | TFile *in = new TFile(inname.Data()); |
| 820252d7 |
607 | TNtuple *nt = (TNtuple*)in->Get("ntVtxRes"); |
| fee9ef0d |
608 | nt->SetBranchAddress("triggered",&triggered); |
| 609 | nt->SetBranchAddress("ntracks",&nESDTrks); |
| 610 | nt->SetBranchAddress("nitstracks",&nTrks); |
| 820252d7 |
611 | nt->SetBranchAddress("nitstracks5or6",&nTrks5or6); |
| 820252d7 |
612 | nt->SetBranchAddress("diffX",&diffX); |
| 613 | nt->SetBranchAddress("diffY",&diffY); |
| 614 | nt->SetBranchAddress("diffZ",&diffZ); |
| 615 | nt->SetBranchAddress("diffXerr",&diffXerr); |
| 616 | nt->SetBranchAddress("diffYerr",&diffYerr); |
| 617 | nt->SetBranchAddress("diffZerr",&diffZerr); |
| fee9ef0d |
618 | nt->SetBranchAddress("multiplicity",&ntracklets); |
| 619 | nt->SetBranchAddress("zMC",&zMC); |
| 620 | nt->SetBranchAddress("nc",&nc); |
| 820252d7 |
621 | Int_t entries = (Int_t)nt->GetEntries(); |
| 622 | Int_t nbytes=0; |
| 623 | |
| 624 | for(Int_t i=0; i<entries; i++) { |
| 625 | nbytes += nt->GetEvent(i); |
| fee9ef0d |
626 | // only triggered events |
| 627 | if(triggered<0.5) continue; |
| 628 | // consider only events with zMCmin<|zMC|<zMCmax |
| 629 | if(TMath::Abs(zMC)<zMCmin || TMath::Abs(zMC)>zMCmax) continue; |
| 630 | // |
| 631 | bin = GetBinTracklets(ntracklets); |
| 632 | zbin = GetBinZ(zMC); |
| 633 | mult[bin] += ntracklets; |
| 634 | hmult->Fill(ntracklets); |
| 820252d7 |
635 | totevts[bin]++; |
| fee9ef0d |
636 | hntrackletsVSzMC->Fill(zMC,ntracklets); |
| 637 | hnitstracksVSzMC->Fill(zMC,nTrks); |
| 638 | hnitstracks5or6VSzMC->Fill(zMC,nTrks5or6); |
| 639 | if(TMath::Abs(diffX) < 1000.) { // vtx found - closer than 1 mm |
| 820252d7 |
640 | nEvVtx++; |
| fee9ef0d |
641 | mult2[bin] += ntracklets; |
| 820252d7 |
642 | vtx[bin]++; |
| 643 | tottracks[bin] += nTrks; |
| 644 | evts[bin]++; |
| 645 | if(bin==0) hdx0->Fill(diffX); |
| 646 | if(bin==1) hdx1->Fill(diffX); |
| 647 | if(bin==2) hdx2->Fill(diffX); |
| 648 | if(bin==3) hdx3->Fill(diffX); |
| 649 | if(bin==4) hdx4->Fill(diffX); |
| 650 | if(bin==5) hdx5->Fill(diffX); |
| 651 | if(bin==0) hdy0->Fill(diffY); |
| 652 | if(bin==1) hdy1->Fill(diffY); |
| 653 | if(bin==2) hdy2->Fill(diffY); |
| 654 | if(bin==3) hdy3->Fill(diffY); |
| 655 | if(bin==4) hdy4->Fill(diffY); |
| 656 | if(bin==5) hdy5->Fill(diffY); |
| 657 | if(bin==0) hdz0->Fill(diffZ); |
| 658 | if(bin==1) hdz1->Fill(diffZ); |
| 659 | if(bin==2) hdz2->Fill(diffZ); |
| 660 | if(bin==3) hdz3->Fill(diffZ); |
| 661 | if(bin==4) hdz4->Fill(diffZ); |
| 662 | if(bin==5) hdz5->Fill(diffZ); |
| 663 | hdx->Fill(diffX); |
| 664 | hdy->Fill(diffY); |
| 665 | hdz->Fill(diffZ); |
| fee9ef0d |
666 | if(nc>=ncminforzshift) hdz_z[zbin].Fill(diffZ); |
| 667 | hzMCVtx->Fill(zMC); |
| 668 | hTrackletsVtx->Fill(ntracklets); |
| 820252d7 |
669 | hTracksVtx->Fill(nTrks); |
| 670 | hTracksVtx5or6->Fill(nTrks5or6); |
| 820252d7 |
671 | hPullsx->Fill(diffXerr); |
| 672 | hPullsy->Fill(diffYerr); |
| 673 | hPullsz->Fill(diffZerr); |
| 674 | if(bin==0) hpx0->Fill(diffXerr); |
| 675 | if(bin==1) hpx1->Fill(diffXerr); |
| 676 | if(bin==2) hpx2->Fill(diffXerr); |
| 677 | if(bin==3) hpx3->Fill(diffXerr); |
| 678 | if(bin==4) hpx4->Fill(diffXerr); |
| 679 | if(bin==5) hpx5->Fill(diffXerr); |
| 680 | if(bin==0) hpy0->Fill(diffYerr); |
| 681 | if(bin==1) hpy1->Fill(diffYerr); |
| 682 | if(bin==2) hpy2->Fill(diffYerr); |
| 683 | if(bin==3) hpy3->Fill(diffYerr); |
| 684 | if(bin==4) hpy4->Fill(diffYerr); |
| 685 | if(bin==5) hpy5->Fill(diffYerr); |
| 686 | if(bin==0) hpz0->Fill(diffZerr); |
| 687 | if(bin==1) hpz1->Fill(diffZerr); |
| 688 | if(bin==2) hpz2->Fill(diffZerr); |
| 689 | if(bin==3) hpz3->Fill(diffZerr); |
| 690 | if(bin==4) hpz4->Fill(diffZerr); |
| 691 | if(bin==5) hpz5->Fill(diffZerr); |
| 692 | } else { |
| 693 | nEvNoVtx++; |
| fee9ef0d |
694 | hzMCNoVtx->Fill(zMC); |
| 695 | hTrackletsNoVtx->Fill(ntracklets); |
| 820252d7 |
696 | hTracksNoVtx->Fill(nTrks); |
| 697 | hTracksNoVtx5or6->Fill(nTrks5or6); |
| 820252d7 |
698 | } |
| 699 | all[bin]++; |
| 700 | } |
| 701 | |
| 702 | |
| 703 | for(Int_t k=0;k<6;k++) { |
| 704 | mult2[k] /= evts[k]; |
| 705 | mult[k] /= totevts[k]; |
| 706 | tottracks[k] /= evts[k]; |
| 707 | probVtx[k] = (Double_t)vtx[k]/all[k]; |
| 708 | eprobVtx[k] = (Double_t)vtx[k]/all[k]/all[k]+(Double_t)vtx[k]*vtx[k]/all[k]/all[k]/all[k]; |
| 709 | eprobVtx[k] = TMath::Sqrt(eprobVtx[k]); |
| 710 | } |
| 711 | |
| 712 | // calculate spread in multiplicity |
| 713 | for(Int_t i=0; i<entries; i++) { |
| 714 | nbytes += nt->GetEvent(i); |
| fee9ef0d |
715 | bin = GetBinTracklets(ntracklets); |
| 716 | sigmamult[bin] += (ntracklets-mult[bin])*(ntracklets-mult[bin])/totevts[bin]; |
| 717 | if(diffX < 90000.) sigmamult2[bin] += (ntracklets-mult2[bin])*(ntracklets-mult2[bin])/evts[bin]; |
| 820252d7 |
718 | } |
| 719 | |
| 720 | for(Int_t k=0;k<6;k++) { |
| 721 | sigmamult[k] = TMath::Sqrt(sigmamult[k]); |
| 722 | sigmamult2[k] = TMath::Sqrt(sigmamult2[k]); |
| 723 | } |
| 724 | |
| 725 | // fraction of found vertices |
| 726 | Float_t frac = (Float_t)nEvVtx/(nEvVtx+nEvNoVtx); |
| 727 | printf(" Fraction of events with vertex: %f\n",frac); |
| 728 | |
| 729 | |
| 730 | // FIT FUNCTIONS |
| 731 | TF1 *g = new TF1("g","gaus"); |
| 732 | g->SetLineWidth(3); |
| 733 | TF1 *line = new TF1("line","pol1"); |
| 734 | line->SetLineWidth(3); |
| fee9ef0d |
735 | TF1 *func = new TF1("func",FitFunc,2,80,2); |
| 820252d7 |
736 | func->SetLineWidth(1); |
| 737 | |
| 738 | Double_t x1,y1,sigmafit; |
| 739 | Char_t message[100]; |
| 740 | |
| 741 | // |
| 742 | // DRAW PLOTS |
| 743 | // |
| 744 | gStyle->SetOptFit(1111); |
| 745 | |
| fee9ef0d |
746 | // tracks VS zMC |
| 747 | TCanvas *c0 = new TCanvas("c0","c0",0,0,1000,400); |
| 748 | c0->Divide(3,1); |
| 749 | c0->cd(1); |
| 750 | hntrackletsVSzMC->SetMinimum(0); |
| 751 | hntrackletsVSzMC->SetMaximum(14); |
| 752 | hntrackletsVSzMC->Draw("profs"); |
| 753 | c0->cd(2); |
| 754 | hnitstracksVSzMC->SetMinimum(0); |
| 755 | hnitstracksVSzMC->SetMaximum(14); |
| 756 | hnitstracksVSzMC->Draw("profs"); |
| 757 | c0->cd(3); |
| 758 | hnitstracks5or6VSzMC->SetMinimum(0); |
| 759 | hnitstracks5or6VSzMC->SetMaximum(14); |
| 760 | hnitstracks5or6VSzMC->Draw("profs"); |
| 761 | |
| 762 | |
| 820252d7 |
763 | // Tracks in ITS for events w/ and w/o vertex |
| 764 | TCanvas *c1 = new TCanvas("c1","c1",0,0,1000,500); |
| 765 | c1->Divide(2,1); |
| 766 | c1->cd(1); |
| 767 | hTracksVtx->Draw(); |
| 768 | c1->cd(2); |
| 769 | hTracksNoVtx->Draw(); |
| 770 | |
| fee9ef0d |
771 | // probability vs ntracklets |
| 772 | TCanvas *c1a = new TCanvas("c1a","c1a",0,0,500,500); |
| 773 | TH1F *hTotTracklets = (TH1F*)hTrackletsVtx->Clone("hTotTracklets"); |
| 774 | hTotTracklets->Add(hTrackletsNoVtx); |
| 775 | TH1F *hProbTracklets = (TH1F*)hTrackletsVtx->Clone("hProbTracklets"); |
| 776 | hProbTracklets->Divide(hTotTracklets); |
| 777 | hProbTracklets->SetYTitle("Probability"); |
| 778 | hProbTracklets->SetTitle("Probability to find the vertex"); |
| 779 | hProbTracklets->Draw(); |
| 780 | |
| 820252d7 |
781 | // probability vs ntracks |
| 782 | TCanvas *c1b = new TCanvas("c1b","c1b",0,0,500,500); |
| 783 | TH1F *hTotTracks = (TH1F*)hTracksVtx->Clone("hTotTracks"); |
| 784 | hTotTracks->Add(hTracksNoVtx); |
| 785 | TH1F *hProbTracks = (TH1F*)hTracksVtx->Clone("hProbTracks"); |
| 786 | hProbTracks->Divide(hTotTracks); |
| 787 | hProbTracks->SetYTitle("Probability"); |
| 788 | hProbTracks->SetTitle("Probability to find the vertex"); |
| 789 | hProbTracks->Draw(); |
| 790 | |
| 791 | TCanvas *c1c = new TCanvas("c1c","c1c",0,0,500,500); |
| 792 | TH1F *hTotTracks5or6 = (TH1F*)hTracksVtx5or6->Clone("hTotTracks5or6"); |
| 793 | hTotTracks5or6->Add(hTracksNoVtx5or6); |
| 794 | TH1F *hProbTracks5or6 = (TH1F*)hTracksVtx5or6->Clone("hProbTracks5or6"); |
| 795 | hProbTracks5or6->Divide(hTotTracks5or6); |
| 796 | hProbTracks5or6->SetYTitle("Probability"); |
| 797 | hProbTracks5or6->SetTitle("Probability to find the vertex"); |
| 798 | hProbTracks5or6->Draw(); |
| 799 | |
| fee9ef0d |
800 | |
| 801 | // probability vs zMC |
| 802 | TCanvas *c1e = new TCanvas("c1e","c1e",0,0,500,500); |
| 803 | TH1F *hTotzMC = (TH1F*)hzMCVtx->Clone("hTotzMC"); |
| 804 | hTotzMC->Add(hzMCNoVtx); |
| 805 | TH1F *hProbzMC = (TH1F*)hzMCVtx->Clone("hProbzMC"); |
| 806 | hProbzMC->Divide(hTotzMC); |
| 807 | hProbzMC->SetYTitle("Probability"); |
| 808 | hProbzMC->SetTitle("Probability to find the vertex"); |
| 809 | hProbzMC->Draw(); |
| 820252d7 |
810 | |
| 811 | // Global resolutions |
| 812 | TCanvas *c2 = new TCanvas("c2","c2",0,0,1000,400); |
| 813 | c2->Divide(3,1); |
| 814 | c2->cd(1); |
| 815 | hdx->Draw(); |
| 816 | g->SetRange(-1.*hdx->GetRMS(),+1.*hdx->GetRMS()); |
| 817 | hdx->Fit("g","R"); |
| 818 | c2->cd(2); |
| 819 | hdy->Draw(); |
| 820 | g->SetRange(-1.*hdy->GetRMS(),+1.*hdy->GetRMS()); |
| 821 | hdy->Fit("g","R"); |
| 822 | c2->cd(3); |
| 823 | hdz->Draw(); |
| 824 | g->SetRange(-1.*hdz->GetRMS(),+1.*hdz->GetRMS()); |
| 825 | hdz->Fit("g","R"); |
| 826 | |
| 827 | // Pulls |
| 828 | TCanvas *c4 = new TCanvas("c4","c4",0,0,1000,400); |
| 829 | c4->Divide(3,1); |
| 830 | c4->cd(1); |
| 831 | hPullsx->Draw(); |
| 832 | g->SetRange(-3.*hPullsx->GetRMS(),+3.*hPullsx->GetRMS()); |
| 833 | hPullsx->Fit("g","R"); |
| 834 | c4->cd(2); |
| 835 | hPullsy->Draw(); |
| 836 | g->SetRange(-3.*hPullsy->GetRMS(),+3.*hPullsy->GetRMS()); |
| 837 | hPullsy->Fit("g","R"); |
| 838 | c4->cd(3); |
| 839 | hPullsz->Draw(); |
| 840 | g->SetRange(-3.*hPullsz->GetRMS(),+3.*hPullsz->GetRMS()); |
| 841 | hPullsz->Fit("g","R"); |
| 842 | |
| 843 | // probability VS multiplicity |
| 844 | TCanvas *c5 = new TCanvas("c5","c5",0,0,600,500); |
| fee9ef0d |
845 | TH2F *fr5 = new TH2F("fr5","",2,0,80,2,0,1.1); |
| 846 | fr5->SetXTitle("SPD tracklets"); |
| 820252d7 |
847 | fr5->SetYTitle("Probability"); |
| 848 | fr5->Draw(); |
| 849 | TGraphErrors *gr5 = new TGraphErrors(6,mult,probVtx,sigmamult,eprobVtx); |
| 850 | gr5->Draw("p"); |
| 851 | gr5->SetMarkerStyle(21); |
| 852 | |
| 853 | // |
| 854 | // resolutions VS multiplicity |
| 855 | // |
| 856 | // X |
| 857 | TCanvas *ax = new TCanvas("ax","ax",0,0,900,700); |
| 858 | ax->Divide(3,2); |
| 859 | ax->cd(1); |
| 860 | hdx0->Draw(); |
| 861 | g->SetRange(-3.*hdx0->GetRMS(),+3.*hdx0->GetRMS()); |
| 862 | hdx0->Fit("g","Q"); |
| 863 | xres[0]=g->GetParameter(2); |
| 864 | exres[0]=g->GetParError(2); |
| 865 | ax->cd(2); |
| 866 | hdx1->Draw(); |
| 867 | g->SetRange(-3.*hdx1->GetRMS(),+3.*hdx1->GetRMS()); |
| 868 | hdx1->Fit("g","Q"); |
| 869 | xres[1]=g->GetParameter(2); |
| 870 | exres[1]=g->GetParError(2); |
| 871 | ax->cd(3); |
| 872 | hdx2->Draw(); |
| 873 | g->SetRange(-3.*hdx2->GetRMS(),+3.*hdx2->GetRMS()); |
| 874 | hdx2->Fit("g","Q"); |
| 875 | xres[2]=g->GetParameter(2); |
| 876 | exres[2]=g->GetParError(2); |
| 877 | ax->cd(4); |
| 878 | hdx3->Draw(); |
| 879 | g->SetRange(-3.*hdx3->GetRMS(),+3.*hdx3->GetRMS()); |
| 880 | hdx3->Fit("g","Q"); |
| 881 | xres[3]=g->GetParameter(2); |
| 882 | exres[3]=g->GetParError(2); |
| 883 | ax->cd(5); |
| 884 | hdx4->Draw(); |
| 885 | g->SetRange(-3.*hdx4->GetRMS(),+3.*hdx4->GetRMS()); |
| 886 | hdx4->Fit("g","Q"); |
| 887 | xres[4]=g->GetParameter(2); |
| 888 | exres[4]=g->GetParError(2); |
| 889 | ax->cd(6); |
| 890 | hdx5->Draw(); |
| 891 | g->SetRange(-3.*hdx5->GetRMS(),+3.*hdx5->GetRMS()); |
| 892 | hdx5->Fit("g","Q"); |
| 893 | xres[5]=g->GetParameter(2); |
| 894 | exres[5]=g->GetParError(2); |
| 895 | // Y |
| 896 | TCanvas *ay = new TCanvas("ay","ay",0,0,900,700); |
| 897 | ay->Divide(3,2); |
| 898 | ay->cd(1); |
| 899 | hdy0->Draw(); |
| 900 | g->SetRange(-3.*hdy0->GetRMS(),+3.*hdy0->GetRMS()); |
| 901 | hdy0->Fit("g","Q"); |
| 902 | yres[0]=g->GetParameter(2); |
| 903 | eyres[0]=g->GetParError(2); |
| 904 | ay->cd(2); |
| 905 | hdy1->Draw(); |
| 906 | g->SetRange(-3.*hdy1->GetRMS(),+3.*hdy1->GetRMS()); |
| 907 | hdy1->Fit("g","Q"); |
| 908 | yres[1]=g->GetParameter(2); |
| 909 | eyres[1]=g->GetParError(2); |
| 910 | ay->cd(3); |
| 911 | hdy2->Draw(); |
| 912 | g->SetRange(-3.*hdy2->GetRMS(),+3.*hdy2->GetRMS()); |
| 913 | hdy2->Fit("g","Q"); |
| 914 | yres[2]=g->GetParameter(2); |
| 915 | eyres[2]=g->GetParError(2); |
| 916 | ay->cd(4); |
| 917 | hdy3->Draw(); |
| 918 | g->SetRange(-3.*hdy3->GetRMS(),+3.*hdy3->GetRMS()); |
| 919 | hdy3->Fit("g","Q"); |
| 920 | yres[3]=g->GetParameter(2); |
| 921 | eyres[3]=g->GetParError(2); |
| 922 | ay->cd(5); |
| 923 | hdy4->Draw(); |
| 924 | g->SetRange(-3.*hdy4->GetRMS(),+3.*hdy4->GetRMS()); |
| 925 | hdy4->Fit("g","Q"); |
| 926 | yres[4]=g->GetParameter(2); |
| 927 | eyres[4]=g->GetParError(2); |
| 928 | ay->cd(6); |
| 929 | hdy5->Draw(); |
| 930 | g->SetRange(-3.*hdy5->GetRMS(),+3.*hdy5->GetRMS()); |
| 931 | hdy5->Fit("g","Q"); |
| 932 | yres[5]=g->GetParameter(2); |
| 933 | eyres[5]=g->GetParError(2); |
| 934 | // Z |
| 935 | TCanvas *az = new TCanvas("az","az",0,0,900,700); |
| 936 | az->Divide(3,2); |
| 937 | az->cd(1); |
| 938 | hdz0->Draw(); |
| 939 | g->SetRange(-3.*hdz0->GetRMS(),+3.*hdz0->GetRMS()); |
| 940 | hdz0->Fit("g","Q"); |
| 941 | zres[0]=g->GetParameter(2); |
| 942 | ezres[0]=g->GetParError(2); |
| 943 | az->cd(2); |
| 944 | hdz1->Draw(); |
| 945 | g->SetRange(-3.*hdz1->GetRMS(),+3.*hdz1->GetRMS()); |
| 946 | hdz1->Fit("g","Q"); |
| 947 | zres[1]=g->GetParameter(2); |
| 948 | ezres[1]=g->GetParError(2); |
| 949 | az->cd(3); |
| 950 | hdz2->Draw(); |
| 951 | g->SetRange(-3.*hdz2->GetRMS(),+3.*hdz2->GetRMS()); |
| 952 | hdz2->Fit("g","Q"); |
| 953 | zres[2]=g->GetParameter(2); |
| 954 | ezres[2]=g->GetParError(2); |
| 955 | az->cd(4); |
| 956 | hdz3->Draw(); |
| 957 | g->SetRange(-3.*hdz3->GetRMS(),+3.*hdz3->GetRMS()); |
| 958 | hdz3->Fit("g","Q"); |
| 959 | zres[3]=g->GetParameter(2); |
| 960 | ezres[3]=g->GetParError(2); |
| 961 | az->cd(5); |
| 962 | hdz4->Draw(); |
| 963 | g->SetRange(-3.*hdz4->GetRMS(),+3.*hdz4->GetRMS()); |
| 964 | hdz4->Fit("g","Q"); |
| 965 | zres[4]=g->GetParameter(2); |
| 966 | ezres[4]=g->GetParError(2); |
| 967 | az->cd(6); |
| 968 | hdz5->Draw(); |
| 969 | g->SetRange(-3.*hdz5->GetRMS(),+3.*hdz5->GetRMS()); |
| 970 | hdz5->Fit("g","Q"); |
| 971 | zres[5]=g->GetParameter(2); |
| 972 | ezres[5]=g->GetParError(2); |
| 973 | |
| 974 | |
| 975 | // |
| 976 | // pulls VS multiplicity |
| 977 | // |
| 978 | // X |
| 979 | TCanvas *bx = new TCanvas("bx","bx",0,0,900,700); |
| 980 | bx->Divide(3,2); |
| 981 | bx->cd(1); |
| 982 | hpx0->Draw(); |
| 983 | g->SetRange(-3.*hpx0->GetRMS(),+3.*hpx0->GetRMS()); |
| 984 | hpx0->Fit("g","Q"); |
| 985 | xpull[0]=g->GetParameter(2); |
| 986 | expull[0]=g->GetParError(2); |
| 987 | bx->cd(2); |
| 988 | hpx1->Draw(); |
| 989 | g->SetRange(-3.*hpx1->GetRMS(),+3.*hpx1->GetRMS()); |
| 990 | hpx1->Fit("g","Q"); |
| 991 | xpull[1]=g->GetParameter(2); |
| 992 | expull[1]=g->GetParError(2); |
| 993 | bx->cd(3); |
| 994 | hpx2->Draw(); |
| 995 | g->SetRange(-3.*hpx2->GetRMS(),+3.*hpx2->GetRMS()); |
| 996 | hpx2->Fit("g","Q"); |
| 997 | xpull[2]=g->GetParameter(2); |
| 998 | expull[2]=g->GetParError(2); |
| 999 | bx->cd(4); |
| 1000 | hpx3->Draw(); |
| 1001 | g->SetRange(-3.*hpx3->GetRMS(),+3.*hpx3->GetRMS()); |
| 1002 | hpx3->Fit("g","Q"); |
| 1003 | xpull[3]=g->GetParameter(2); |
| 1004 | expull[3]=g->GetParError(2); |
| 1005 | bx->cd(5); |
| 1006 | hpx4->Draw(); |
| 1007 | g->SetRange(-3.*hpx4->GetRMS(),+3.*hpx4->GetRMS()); |
| 1008 | hpx4->Fit("g","Q"); |
| 1009 | xpull[4]=g->GetParameter(2); |
| 1010 | expull[4]=g->GetParError(2); |
| 1011 | bx->cd(6); |
| 1012 | hpx5->Draw(); |
| 1013 | g->SetRange(-3.*hpx5->GetRMS(),+3.*hpx5->GetRMS()); |
| 1014 | hpx5->Fit("g","Q"); |
| 1015 | xpull[5]=g->GetParameter(2); |
| 1016 | expull[5]=g->GetParError(2); |
| 1017 | // Y |
| 1018 | TCanvas *by = new TCanvas("by","by",0,0,900,700); |
| 1019 | by->Divide(3,2); |
| 1020 | by->cd(1); |
| 1021 | hpy0->Draw(); |
| 1022 | g->SetRange(-3.*hpy0->GetRMS(),+3.*hpy0->GetRMS()); |
| 1023 | hpy0->Fit("g","Q"); |
| 1024 | ypull[0]=g->GetParameter(2); |
| 1025 | eypull[0]=g->GetParError(2); |
| 1026 | by->cd(2); |
| 1027 | hpy1->Draw(); |
| 1028 | g->SetRange(-3.*hpy1->GetRMS(),+3.*hpy1->GetRMS()); |
| 1029 | hpy1->Fit("g","Q"); |
| 1030 | ypull[1]=g->GetParameter(2); |
| 1031 | eypull[1]=g->GetParError(2); |
| 1032 | by->cd(3); |
| 1033 | hpy2->Draw(); |
| 1034 | g->SetRange(-3.*hpy2->GetRMS(),+3.*hpy2->GetRMS()); |
| 1035 | hpy2->Fit("g","Q"); |
| 1036 | ypull[2]=g->GetParameter(2); |
| 1037 | eypull[2]=g->GetParError(2); |
| 1038 | by->cd(4); |
| 1039 | hpy3->Draw(); |
| 1040 | g->SetRange(-3.*hpy3->GetRMS(),+3.*hpy3->GetRMS()); |
| 1041 | hpy3->Fit("g","Q"); |
| 1042 | ypull[3]=g->GetParameter(2); |
| 1043 | eypull[3]=g->GetParError(2); |
| 1044 | by->cd(5); |
| 1045 | hpy4->Draw(); |
| 1046 | g->SetRange(-3.*hpy4->GetRMS(),+3.*hpy4->GetRMS()); |
| 1047 | hpy4->Fit("g","Q"); |
| 1048 | ypull[4]=g->GetParameter(2); |
| 1049 | eypull[4]=g->GetParError(2); |
| 1050 | by->cd(6); |
| 1051 | hpy5->Draw(); |
| 1052 | g->SetRange(-3.*hpy5->GetRMS(),+3.*hpy5->GetRMS()); |
| 1053 | hpy5->Fit("g","Q"); |
| 1054 | ypull[5]=g->GetParameter(2); |
| 1055 | eypull[5]=g->GetParError(2); |
| 1056 | // Z |
| 1057 | TCanvas *bz = new TCanvas("bz","bz",0,0,900,700); |
| 1058 | bz->Divide(3,2); |
| 1059 | bz->cd(1); |
| 1060 | hpz0->Draw(); |
| 1061 | g->SetRange(-3.*hpz0->GetRMS(),+3.*hpz0->GetRMS()); |
| 1062 | hpz0->Fit("g","Q"); |
| 1063 | zpull[0]=g->GetParameter(2); |
| 1064 | ezpull[0]=g->GetParError(2); |
| 1065 | bz->cd(2); |
| 1066 | hpz1->Draw(); |
| 1067 | g->SetRange(-3.*hpz1->GetRMS(),+3.*hpz1->GetRMS()); |
| 1068 | hpz1->Fit("g","Q"); |
| 1069 | zpull[1]=g->GetParameter(2); |
| 1070 | ezpull[1]=g->GetParError(2); |
| 1071 | bz->cd(3); |
| 1072 | hpz2->Draw(); |
| 1073 | g->SetRange(-3.*hpz2->GetRMS(),+3.*hpz2->GetRMS()); |
| 1074 | hpz2->Fit("g","Q"); |
| 1075 | zpull[2]=g->GetParameter(2); |
| 1076 | ezpull[2]=g->GetParError(2); |
| 1077 | bz->cd(4); |
| 1078 | hpz3->Draw(); |
| 1079 | g->SetRange(-3.*hpz3->GetRMS(),+3.*hpz3->GetRMS()); |
| 1080 | hpz3->Fit("g","Q"); |
| 1081 | zpull[3]=g->GetParameter(2); |
| 1082 | ezpull[3]=g->GetParError(2); |
| 1083 | bz->cd(5); |
| 1084 | hpz4->Draw(); |
| 1085 | g->SetRange(-3.*hpz4->GetRMS(),+3.*hpz4->GetRMS()); |
| 1086 | hpz4->Fit("g","Q"); |
| 1087 | zpull[4]=g->GetParameter(2); |
| 1088 | ezpull[4]=g->GetParError(2); |
| 1089 | bz->cd(6); |
| 1090 | hpz5->Draw(); |
| 1091 | g->SetRange(-3.*hpz5->GetRMS(),+3.*hpz5->GetRMS()); |
| 1092 | hpz5->Fit("g","Q"); |
| 1093 | zpull[5]=g->GetParameter(2); |
| 1094 | ezpull[5]=g->GetParError(2); |
| 1095 | |
| 1096 | gStyle->SetOptFit(0); |
| 1097 | |
| fee9ef0d |
1098 | // res VS ntracklets |
| 820252d7 |
1099 | TCanvas *c6 = new TCanvas("c6","c6",0,0,600,500); |
| fee9ef0d |
1100 | TH2F *fr6 = new TH2F("fr6","",2,0,80,2,0,240); |
| 1101 | fr6->SetXTitle("SPD tracklets"); |
| 820252d7 |
1102 | fr6->SetYTitle("#sigma [#mu m]"); |
| 1103 | fr6->Draw(); |
| 1104 | sigmamult2[0]=sigmamult2[1]=sigmamult2[2]=sigmamult2[3]=sigmamult2[4]=sigmamult2[5]=0.; |
| 1105 | TGraphErrors *gr6x = new TGraphErrors(6,mult2,xres,sigmamult2,exres); |
| 1106 | gr6x->Draw("p"); |
| 1107 | gr6x->SetMarkerStyle(22); |
| fee9ef0d |
1108 | //gr6x->Fit("func","E,R"); |
| 820252d7 |
1109 | TGraphErrors *gr6z = new TGraphErrors(6,mult2,zres,sigmamult2,ezres); |
| 1110 | gr6z->Draw("p"); |
| 1111 | gr6z->SetMarkerStyle(26); |
| fee9ef0d |
1112 | //gr6z->Fit("func","E,R"); |
| 820252d7 |
1113 | TLegend *leg6 = new TLegend(0.6,0.75,0.9,0.9); |
| 1114 | leg6->AddEntry(gr6x,"x/y coordinate","p"); |
| 1115 | leg6->AddEntry(gr6z,"z coordinate","p"); |
| 1116 | leg6->SetFillStyle(0); |
| 1117 | leg6->SetBorderSize(0); |
| 1118 | leg6->Draw(); |
| 1119 | |
| fee9ef0d |
1120 | // pull VS ntracklets |
| 820252d7 |
1121 | TCanvas *c8 = new TCanvas("c8","c8",0,0,600,500); |
| fee9ef0d |
1122 | TH2F *fr8 = new TH2F("fr8","",2,0,80,2,0,2.); |
| 1123 | fr8->SetXTitle("SPD tracklets"); |
| 820252d7 |
1124 | fr8->SetYTitle("pull"); |
| 1125 | fr8->Draw(); |
| 1126 | TGraphErrors *gr8x = new TGraphErrors(6,mult2,xpull,sigmamult2,expull); |
| 1127 | gr8x->Draw("p"); |
| 1128 | gr8x->SetMarkerStyle(22); |
| 1129 | TGraphErrors *gr8z = new TGraphErrors(6,mult2,zpull,sigmamult2,ezpull); |
| 1130 | gr8z->Draw("p"); |
| 1131 | gr8z->SetMarkerStyle(26); |
| 1132 | TLegend *leg8 = new TLegend(0.6,0.75,0.9,0.9); |
| 1133 | leg8->AddEntry(gr6x,"x/y coordinate","p"); |
| 1134 | leg8->AddEntry(gr6z,"z coordinate","p"); |
| 1135 | leg8->SetFillStyle(0); |
| 1136 | leg8->SetBorderSize(0); |
| 1137 | leg8->Draw(); |
| fee9ef0d |
1138 | TLine *l8 = new TLine(0,1,80,1); |
| 820252d7 |
1139 | l8->SetLineStyle(2); |
| 1140 | l8->Draw(); |
| 1141 | |
| fee9ef0d |
1142 | |
| 1143 | // mean z res VS zMC |
| 1144 | Float_t zmc[15]={-14,-12,-10,-8,-6,-4,-2,0,2,4,6,8,10,12,14}; |
| 1145 | Float_t ezmc[15]; |
| 1146 | Float_t dzmean[15],edzmean[15]; |
| 1147 | Int_t dummy; |
| 1148 | TCanvas *zz = new TCanvas("zz","zz",0,0,1000,1000); |
| 1149 | zz->Divide(5,3); |
| 1150 | for(l=0;l<15;l++) { |
| 1151 | zz->cd(l+1); |
| 1152 | hdz_z[l].Draw(); |
| 1153 | g->SetRange(-3.*hdz_z[l].GetRMS(),+3.*hdz_z[l].GetRMS()); |
| 1154 | hdz_z[l].Fit("g","Q"); |
| 1155 | dzmean[l]=g->GetParameter(1); |
| 1156 | edzmean[l]=g->GetParError(1); |
| 1157 | ezmc[l]=1.; |
| 1158 | } |
| 1159 | TCanvas *zzz = new TCanvas("zzz","zzz",0,0,600,500); |
| 1160 | TH2F *fr9 = new TH2F("fr9","",2,-15,15,2,-50,50); |
| 1161 | fr9->SetXTitle("z_{true} [cm]"); |
| 1162 | fr9->SetYTitle("<z_{rec} - z_{true}> [#mu m]"); |
| 1163 | fr9->Draw(); |
| 1164 | TGraphErrors *grz = new TGraphErrors(15,zmc,dzmean,ezmc,edzmean); |
| 1165 | grz->Draw("pz"); |
| 1166 | grz->SetMarkerStyle(20); |
| 1167 | |
| 1168 | |
| 820252d7 |
1169 | return; |
| 1170 | } |
| 1171 | //---------------------------------------------------------------------------- |
| fee9ef0d |
1172 | void SaveFigures(TString name="dummy") { |
| 1173 | |
| 1174 | TString namefull; |
| 1175 | |
| 1176 | namefull = name.Data(); |
| 1177 | namefull.Prepend("plots/residualsx_"); |
| 1178 | namefull.Append(".gif"); |
| 1179 | ax->Print(namefull.Data()); |
| 1180 | namefull = name.Data(); |
| 1181 | namefull.Prepend("plots/residualsx_"); |
| 1182 | namefull.Append(".ps"); |
| 1183 | ax->Print(namefull.Data()); |
| 1184 | namefull = name.Data(); |
| 1185 | namefull.Prepend("plots/residualsx_"); |
| 1186 | namefull.Append(".eps"); |
| 1187 | ax->Print(namefull.Data()); |
| 1188 | namefull = name.Data(); |
| 1189 | namefull.Prepend("plots/residualsx_"); |
| 1190 | namefull.Append(".root"); |
| 1191 | ax->Print(namefull.Data()); |
| 1192 | |
| 1193 | namefull = name.Data(); |
| 1194 | namefull.Prepend("plots/pullsx_"); |
| 1195 | namefull.Append(".gif"); |
| 1196 | bx->Print(namefull.Data()); |
| 1197 | namefull = name.Data(); |
| 1198 | namefull.Prepend("plots/pullsx_"); |
| 1199 | namefull.Append(".ps"); |
| 1200 | bx->Print(namefull.Data()); |
| 1201 | namefull = name.Data(); |
| 1202 | namefull.Prepend("plots/pullsx_"); |
| 1203 | namefull.Append(".eps"); |
| 1204 | bx->Print(namefull.Data()); |
| 1205 | namefull = name.Data(); |
| 1206 | namefull.Prepend("plots/pullsx_"); |
| 1207 | namefull.Append(".root"); |
| 1208 | bx->Print(namefull.Data()); |
| 1209 | |
| 1210 | namefull = name.Data(); |
| 1211 | namefull.Prepend("plots/residualsz_"); |
| 1212 | namefull.Append(".gif"); |
| 1213 | az->Print(namefull.Data()); |
| 1214 | namefull = name.Data(); |
| 1215 | namefull.Prepend("plots/residualsz_"); |
| 1216 | namefull.Append(".ps"); |
| 1217 | az->Print(namefull.Data()); |
| 1218 | namefull = name.Data(); |
| 1219 | namefull.Prepend("plots/residualsz_"); |
| 1220 | namefull.Append(".eps"); |
| 1221 | az->Print(namefull.Data()); |
| 1222 | namefull = name.Data(); |
| 1223 | namefull.Prepend("plots/residualsz_"); |
| 1224 | namefull.Append(".root"); |
| 1225 | az->Print(namefull.Data()); |
| 1226 | |
| 1227 | namefull = name.Data(); |
| 1228 | namefull.Prepend("plots/pullsz_"); |
| 1229 | namefull.Append(".gif"); |
| 1230 | bz->Print(namefull.Data()); |
| 1231 | namefull = name.Data(); |
| 1232 | namefull.Prepend("plots/pullsz_"); |
| 1233 | namefull.Append(".ps"); |
| 1234 | bz->Print(namefull.Data()); |
| 1235 | namefull = name.Data(); |
| 1236 | namefull.Prepend("plots/pullsz_"); |
| 1237 | namefull.Append(".eps"); |
| 1238 | bz->Print(namefull.Data()); |
| 1239 | namefull = name.Data(); |
| 1240 | namefull.Prepend("plots/pullsz_"); |
| 1241 | namefull.Append(".root"); |
| 1242 | bz->Print(namefull.Data()); |
| 1243 | |
| 1244 | namefull = name.Data(); |
| 1245 | namefull.Prepend("plots/effVSntracklets_"); |
| 1246 | namefull.Append(".gif"); |
| 1247 | c1a->Print(namefull.Data()); |
| 1248 | namefull = name.Data(); |
| 1249 | namefull.Prepend("plots/effVSntracklets_"); |
| 1250 | namefull.Append(".ps"); |
| 1251 | c1a->Print(namefull.Data()); |
| 1252 | namefull = name.Data(); |
| 1253 | namefull.Prepend("plots/effVSntracklets_"); |
| 1254 | namefull.Append(".eps"); |
| 1255 | c1a->Print(namefull.Data()); |
| 1256 | namefull = name.Data(); |
| 1257 | namefull.Prepend("plots/effVSntracklets_"); |
| 1258 | namefull.Append(".root"); |
| 1259 | c1a->Print(namefull.Data()); |
| 1260 | |
| 1261 | |
| 1262 | namefull = name.Data(); |
| 1263 | namefull.Prepend("plots/effVSnitstracks_"); |
| 1264 | namefull.Append(".gif"); |
| 1265 | c1b->Print(namefull.Data()); |
| 1266 | namefull = name.Data(); |
| 1267 | namefull.Prepend("plots/effVSnitstracks_"); |
| 1268 | namefull.Append(".ps"); |
| 1269 | c1b->Print(namefull.Data()); |
| 1270 | namefull = name.Data(); |
| 1271 | namefull.Prepend("plots/effVSnitstracks_"); |
| 1272 | namefull.Append(".eps"); |
| 1273 | c1b->Print(namefull.Data()); |
| 1274 | namefull = name.Data(); |
| 1275 | namefull.Prepend("plots/effVSnitstracks_"); |
| 1276 | namefull.Append(".root"); |
| 1277 | c1b->Print(namefull.Data()); |
| 1278 | |
| 1279 | |
| 1280 | namefull = name.Data(); |
| 1281 | namefull.Prepend("plots/effVSnitstracks5or6_"); |
| 1282 | namefull.Append(".gif"); |
| 1283 | c1c->Print(namefull.Data()); |
| 1284 | namefull = name.Data(); |
| 1285 | namefull.Prepend("plots/effVSnitstracks5or6_"); |
| 1286 | namefull.Append(".ps"); |
| 1287 | c1c->Print(namefull.Data()); |
| 1288 | namefull = name.Data(); |
| 1289 | namefull.Prepend("plots/effVSnitstracks5or6_"); |
| 1290 | namefull.Append(".eps"); |
| 1291 | c1c->Print(namefull.Data()); |
| 1292 | namefull = name.Data(); |
| 1293 | namefull.Prepend("plots/effVSnitstracks5or6_"); |
| 1294 | namefull.Append(".root"); |
| 1295 | c1c->Print(namefull.Data()); |
| 1296 | |
| 1297 | |
| 1298 | namefull = name.Data(); |
| 1299 | namefull.Prepend("plots/effVSzMC_"); |
| 1300 | namefull.Append(".gif"); |
| 1301 | c1e->Print(namefull.Data()); |
| 1302 | namefull = name.Data(); |
| 1303 | namefull.Prepend("plots/effVSzMC_"); |
| 1304 | namefull.Append(".ps"); |
| 1305 | c1e->Print(namefull.Data()); |
| 1306 | namefull = name.Data(); |
| 1307 | namefull.Prepend("plots/effVSzMC_"); |
| 1308 | namefull.Append(".eps"); |
| 1309 | c1e->Print(namefull.Data()); |
| 1310 | namefull = name.Data(); |
| 1311 | namefull.Prepend("plots/effVSzMC_"); |
| 1312 | namefull.Append(".root"); |
| 1313 | c1e->Print(namefull.Data()); |
| 1314 | |
| 1315 | |
| 1316 | |
| 1317 | namefull = name.Data(); |
| 1318 | namefull.Prepend("plots/effVSntracklets2_"); |
| 1319 | namefull.Append(".gif"); |
| 1320 | c5->Print(namefull.Data()); |
| 1321 | namefull = name.Data(); |
| 1322 | namefull.Prepend("plots/effVSntracklets2_"); |
| 1323 | namefull.Append(".ps"); |
| 1324 | c5->Print(namefull.Data()); |
| 1325 | namefull = name.Data(); |
| 1326 | namefull.Prepend("plots/effVSntracklets2_"); |
| 1327 | namefull.Append(".eps"); |
| 1328 | c5->Print(namefull.Data()); |
| 1329 | namefull = name.Data(); |
| 1330 | namefull.Prepend("plots/effVSntracklets2_"); |
| 1331 | namefull.Append(".root"); |
| 1332 | c5->Print(namefull.Data()); |
| 1333 | |
| 1334 | |
| 1335 | namefull = name.Data(); |
| 1336 | namefull.Prepend("plots/sigmaVSntracklets_"); |
| 1337 | namefull.Append(".gif"); |
| 1338 | c6->Print(namefull.Data()); |
| 1339 | namefull = name.Data(); |
| 1340 | namefull.Prepend("plots/sigmaVSntracklets_"); |
| 1341 | namefull.Append(".ps"); |
| 1342 | c6->Print(namefull.Data()); |
| 1343 | namefull = name.Data(); |
| 1344 | namefull.Prepend("plots/sigmaVSntracklets_"); |
| 1345 | namefull.Append(".eps"); |
| 1346 | c6->Print(namefull.Data()); |
| 1347 | namefull = name.Data(); |
| 1348 | namefull.Prepend("plots/sigmaVSntracklets_"); |
| 1349 | namefull.Append(".root"); |
| 1350 | c6->Print(namefull.Data()); |
| 1351 | |
| 1352 | |
| 1353 | namefull = name.Data(); |
| 1354 | namefull.Prepend("plots/pullsVSntracklets_"); |
| 1355 | namefull.Append(".gif"); |
| 1356 | c8->Print(namefull.Data()); |
| 1357 | namefull = name.Data(); |
| 1358 | namefull.Prepend("plots/pullsVSntracklets_"); |
| 1359 | namefull.Append(".ps"); |
| 1360 | c8->Print(namefull.Data()); |
| 1361 | namefull = name.Data(); |
| 1362 | namefull.Prepend("plots/pullsVSntracklets_"); |
| 1363 | namefull.Append(".eps"); |
| 1364 | c8->Print(namefull.Data()); |
| 1365 | namefull = name.Data(); |
| 1366 | namefull.Prepend("plots/pullsVSntracklets_"); |
| 1367 | namefull.Append(".root"); |
| 1368 | c8->Print(namefull.Data()); |
| 1369 | |
| 1370 | |
| 1371 | return; |
| 1372 | } |
| 1373 | //---------------------------------------------------------------------------- |
| 1374 | void TestRmTracks(Int_t iev=0) { |
| 1375 | |
| 1376 | if (gAlice) { |
| 1377 | delete gAlice->GetRunLoader(); |
| 1378 | delete gAlice; |
| 1379 | gAlice=0; |
| 1380 | } |
| 1381 | |
| 1382 | AliRunLoader *rl = AliRunLoader::Open("galice.root"); |
| 1383 | if (rl == 0x0) { |
| 1384 | cerr<<"Can not open session"<<endl; |
| 1385 | return; |
| 1386 | } |
| 1387 | Int_t retval = rl->LoadgAlice(); |
| 1388 | if (retval) { |
| 1389 | cerr<<"LoadgAlice returned error"<<endl; |
| 1390 | delete rl; |
| 1391 | return; |
| 1392 | } |
| 1393 | retval = rl->LoadHeader(); |
| 1394 | if (retval) { |
| 1395 | cerr<<"LoadHeader returned error"<<endl; |
| 1396 | delete rl; |
| 1397 | return; |
| 1398 | } |
| 1399 | gAlice=rl->GetAliRun(); |
| 1400 | // Get field from galice.root |
| 1401 | AliMagF *fiel = (AliMagF*)gAlice->Field(); |
| 1402 | // Set the conversion constant between curvature and Pt |
| 1403 | AliTracker::SetFieldMap(fiel,kTRUE); |
| 1404 | |
| 1405 | Double_t truevtx[3]; |
| 1406 | Double_t vtx[3]; |
| 1407 | Double_t errvtx[3]; |
| 1408 | Double_t diffX,diffY,diffZ; |
| 1409 | Double_t diffXerr,diffYerr,diffZerr; |
| 1410 | Double_t multiplicity; |
| 1411 | Int_t nc; |
| 1412 | |
| 1413 | // ----------- Create vertexer -------------------------- |
| 1414 | AliESDVertex *initVertex = 0; |
| 1415 | TFile *invtx = new TFile("AliESDVertexMean.root"); |
| 1416 | initVertex = (AliESDVertex*)invtx->Get("vtxmean"); |
| 1417 | invtx->Close(); |
| 1418 | delete invtx; |
| 1419 | |
| 28e4388a |
1420 | AliVertexerTracks *vertexer = new AliVertexerTracks(AliTracker::GetBz()); |
| fee9ef0d |
1421 | vertexer->SetVtxStart(initVertex); |
| 1422 | vertexer->SetOnlyFitter(); |
| 1423 | vertexer->SetDebug(0); // set to 1 to see what it does |
| 1424 | |
| 1425 | Float_t diamondxy[2]; |
| 1426 | diamondxy[0]=initVertex->GetXv(); |
| 1427 | diamondxy[1]=initVertex->GetYv(); |
| 1428 | //---------------------------------------------------------- |
| 1429 | |
| 1430 | if(gSystem->AccessPathName("AliESDs.root",kFileExists)) { |
| 1431 | printf("AliESDs.root not found!\n"); |
| 1432 | return; |
| 1433 | } |
| 1434 | TFile *fin = TFile::Open("AliESDs.root"); |
| 64cf164e |
1435 | AliESDEvent *esd = new AliESDEvent(); |
| fee9ef0d |
1436 | TTree *esdTree = (TTree*)fin->Get("esdTree"); |
| 1437 | if(!esdTree) return; |
| 64cf164e |
1438 | esd->ReadFromTree(esdTree); |
| fee9ef0d |
1439 | |
| 1440 | TArrayF o; |
| 1441 | |
| 1442 | nc=0; |
| 1443 | |
| 1444 | |
| 1445 | esdTree->GetEvent(iev); |
| 1446 | Int_t ntracks = esd->GetNumberOfTracks(); |
| 1447 | printf("Number of tracks in ESD %d : %d\n",iev,ntracks); |
| 1448 | |
| 1449 | // example: do vertex without tracks 1 and 2 (AliESDtrack::GetID()) |
| 1450 | // |
| 1451 | // 1: tell vertexer to skip those two tracks |
| 1452 | // |
| 1453 | Int_t nskip=2; |
| 1454 | Int_t skipped[2]; |
| 1455 | skipped[0]=1; |
| 1456 | skipped[1]=2; |
| 1457 | vertexer->SetSkipTracks(nskip,skipped); |
| 1458 | AliESDVertex *vertex1 = (AliESDVertex*)vertexer->FindPrimaryVertex(esd); |
| 1459 | vertex1->PrintStatus(); |
| 1460 | vertex1->PrintIndices(); |
| 1461 | delete vertex1; |
| 1462 | vertex1 = 0; |
| 1463 | // |
| 1464 | // 2: do vertex with all tracks |
| 1465 | // |
| 1466 | skipped[0]=-99; |
| 1467 | skipped[1]=-99; |
| 1468 | vertexer->SetSkipTracks(nskip,skipped); |
| 1469 | AliESDVertex *vertex2 = (AliESDVertex*)vertexer->FindPrimaryVertex(esd); |
| 1470 | vertex2->PrintStatus(); |
| 1471 | vertex2->PrintIndices(); |
| 1472 | // |
| 1473 | // 3: now remove those two tracks from vertex2 |
| 1474 | // |
| 1475 | TTree *trksTree = new TTree("trksTree","tree with tracks to be removed"); |
| 1476 | AliESDtrack *esdTrack = 0; |
| 1477 | trksTree->Branch("tracks","AliESDtrack",&esdTrack); |
| 1478 | AliESDtrack *et = esd->GetTrack(1); |
| 1479 | esdTrack = new AliESDtrack(*et); |
| 1480 | trksTree->Fill(); |
| 1481 | delete esdTrack; |
| 1482 | AliESDtrack *et = esd->GetTrack(2); |
| 1483 | esdTrack = new AliESDtrack(*et); |
| 1484 | trksTree->Fill(); |
| 1485 | delete esdTrack; |
| 28e4388a |
1486 | AliVertexerTracks vt(AliTracker::GetBz()); |
| fee9ef0d |
1487 | AliESDVertex *vertex3 = vt.RemoveTracksFromVertex(vertex2,trksTree,diamondxy); |
| 1488 | vertex3->PrintStatus(); |
| 1489 | vertex3->PrintIndices(); |
| 1490 | delete vertex2; |
| 1491 | vertex2 = 0; |
| 1492 | delete vertex3; |
| 1493 | vertex3 = 0; |
| 1494 | |
| 1495 | |
| 1496 | delete esdTree; |
| 1497 | delete fin; |
| 1498 | vertexer =0; |
| 1499 | delete vertexer; |
| 1500 | delete initVertex; |
| 1501 | |
| 1502 | return; |
| 1503 | } |
| 1504 | //---------------------------------------------------------------------------- |
| 820252d7 |
1505 | void AliComputeVtxMeanFromESD(TString file="AliESDs.root", |
| 1506 | Int_t mincontr=20) { |
| 1507 | //----------------------------------------------------------------------- |
| 1508 | // Compute weighted mean and cov. matrix from a set of AliESD |
| 1509 | //----------------------------------------------------------------------- |
| 1510 | |
| 1511 | gStyle->SetOptStat(0); |
| 1512 | //gStyle->SetOptFit(0); |
| 1513 | |
| 1514 | |
| 1515 | Double_t vtx[3],covvtx[6]; |
| 1516 | TTree *esdTree = 0; |
| 64cf164e |
1517 | AliESDEvent *esd = new AliESDEvent(); |
| 820252d7 |
1518 | AliESDVertex *vertex = 0; |
| 1519 | TString vtitle; |
| 1520 | Int_t nc,events,total=0; |
| 1521 | |
| 1522 | Double_t avx=0.; |
| 1523 | Double_t avy=0.; |
| 1524 | Double_t avz=0.; |
| 1525 | Double_t wgtavx=0.; |
| 1526 | Double_t wgtavy=0.; |
| 1527 | Double_t wgtavz=0.; |
| 1528 | Double_t sum=0.; |
| 1529 | Double_t sumwgtx=0.; |
| 1530 | Double_t sumwgty=0.; |
| 1531 | Double_t sumwgtz=0.; |
| 1532 | Double_t rmsx=0; |
| 1533 | Double_t rmsy=0; |
| 1534 | Double_t rmsz=0; |
| 1535 | Double_t varx=0; |
| 1536 | Double_t vary=0; |
| 1537 | Double_t varz=0; |
| 1538 | Double_t covxy=0; |
| 1539 | Double_t covxz=0; |
| 1540 | Double_t covyz=0; |
| 1541 | Double_t eavx,eavy,eavz,ewgtavx,ewgtavy,ewgtavz; |
| 1542 | |
| 1543 | TH1F* hx = new TH1F("hx","",200,-1000,1000); |
| 1544 | hx->SetXTitle("vertex x [#mu m]"); |
| 1545 | hx->SetYTitle("events"); |
| 1546 | TH1F* hy = new TH1F("hy","",200,-1000,1000); |
| 1547 | hy->SetXTitle("vertex y [#mu m]"); |
| 1548 | hy->SetYTitle("events"); |
| 1549 | TH1F* hz = new TH1F("hz","",200,-10,10); |
| 1550 | hz->SetXTitle("vertex z [cm]"); |
| 1551 | hz->SetYTitle("events"); |
| 1552 | |
| 1553 | |
| 1554 | for(Int_t i=1; i<100; i++) { |
| 1555 | TString inname="event."; |
| 1556 | inname+=i; |
| 1557 | inname.Append("/"); |
| 1558 | inname.Append(file.Data()); |
| 1559 | if(gSystem->AccessPathName(inname.Data())) continue; |
| 1560 | TFile *fin = TFile::Open(inname.Data()); |
| 1561 | esdTree = (TTree*)fin->Get("esdTree"); |
| 1562 | if(!esdTree) continue; |
| 64cf164e |
1563 | esd->ReadFromTree(esdTree); |
| 820252d7 |
1564 | events = esdTree->GetEntries(); |
| 1565 | printf("Number of events in ESD tree: %d\n",events); |
| 1566 | total += events; |
| 1567 | |
| 1568 | for(Int_t iev=0; iev<events; iev++) { //LOOP ON EVENTS |
| 1569 | esdTree->GetEvent(iev); |
| 1570 | vertex = (AliESDVertex*)esd->GetPrimaryVertex(); |
| 1571 | if(!vertex) continue; |
| 1572 | nc = vertex->GetNContributors(); |
| 1573 | if(nc<mincontr) continue; |
| 1574 | vertex->GetXYZ(vtx); |
| 1575 | vertex->GetSigmaXYZ(errvtx); |
| 1576 | //printf("%f %f %f %f %f %f\n",vtx[0],vtx[1],vtx[2],errvtx[0],errvtx[1],errvtx[2]); |
| 1577 | |
| 1578 | avx += vtx[0]; |
| 1579 | avy += vtx[1]; |
| 1580 | avz += vtx[2]; |
| 1581 | sum += 1.; |
| 1582 | wgtavx += vtx[0]/errvtx[0]/errvtx[0]; |
| 1583 | wgtavy += vtx[1]/errvtx[1]/errvtx[1]; |
| 1584 | wgtavz += vtx[2]/errvtx[2]/errvtx[2]; |
| 1585 | sumwgtx += 1./errvtx[0]/errvtx[0]; |
| 1586 | sumwgty += 1./errvtx[1]/errvtx[1]; |
| 1587 | sumwgtz += 1./errvtx[2]/errvtx[2]; |
| 1588 | |
| 1589 | hx->Fill(1e4*vtx[0]); |
| 1590 | hy->Fill(1e4*vtx[1]); |
| 1591 | hz->Fill(vtx[2]); |
| 1592 | |
| 1593 | vertex = 0; |
| 1594 | } |
| 1595 | esdTree=0; |
| 1596 | fin->Close(); |
| 1597 | delete fin; |
| 1598 | } |
| 1599 | |
| 1600 | avx /= sum; |
| 1601 | avy /= sum; |
| 1602 | avz /= sum; |
| 1603 | wgtavx /= sumwgtx; |
| 1604 | wgtavy /= sumwgty; |
| 1605 | wgtavz /= sumwgtz; |
| 1606 | ewgtavx = 1./TMath::Sqrt(sumwgtx); |
| 1607 | ewgtavy = 1./TMath::Sqrt(sumwgty); |
| 1608 | ewgtavz = 1./TMath::Sqrt(sumwgtz); |
| 1609 | |
| 1610 | |
| 1611 | for(Int_t i=1; i<100; i++) { |
| 1612 | TString inname="event."; |
| 1613 | inname+=i; |
| 1614 | inname.Append("/"); |
| 1615 | inname.Append(file.Data()); |
| 1616 | if(gSystem->AccessPathName(inname.Data())) continue; |
| 1617 | TFile *fin = TFile::Open(inname.Data()); |
| 1618 | esdTree = (TTree*)fin->Get("esdTree"); |
| 1619 | if(!esdTree) continue; |
| 64cf164e |
1620 | esd->ReadFromTree(esdTree); |
| 820252d7 |
1621 | events = esdTree->GetEntries(); |
| 1622 | for(Int_t iev=0; iev<events; iev++) { //LOOP ON EVENTS |
| 1623 | esdTree->GetEvent(iev); |
| 1624 | vertex = (AliESDVertex*)esd->GetPrimaryVertex(); |
| 1625 | if(!vertex) continue; |
| 1626 | nc = vertex->GetNContributors(); |
| 1627 | if(nc<mincontr) continue; |
| 1628 | vertex->GetXYZ(vtx); |
| 1629 | vertex->GetSigmaXYZ(errvtx); |
| 1630 | |
| 1631 | varx += (vtx[0]-avx)*(vtx[0]-avx); |
| 1632 | vary += (vtx[1]-avy)*(vtx[1]-avy); |
| 1633 | varz += (vtx[2]-avz)*(vtx[2]-avz); |
| 1634 | covxy += (vtx[0]-avx)*(vtx[1]-avy); |
| 1635 | covxz += (vtx[0]-avx)*(vtx[2]-avz); |
| 1636 | covyz += (vtx[1]-avy)*(vtx[2]-avz); |
| 1637 | |
| 1638 | vertex = 0; |
| 1639 | } |
| 1640 | } |
| 1641 | |
| 1642 | varx /= sum; |
| 1643 | vary /= sum; |
| 1644 | varz /= sum; |
| 1645 | covxy /= sum; |
| 1646 | covxz /= sum; |
| 1647 | covyz /= sum; |
| 1648 | rmsx = TMath::Sqrt(varx); |
| 1649 | rmsy = TMath::Sqrt(vary); |
| 1650 | rmsz = TMath::Sqrt(varz); |
| 1651 | eavx = rmsx/TMath::Sqrt(sum); |
| 1652 | eavy = rmsy/TMath::Sqrt(sum); |
| 1653 | eavz = rmsz/TMath::Sqrt(sum); |
| 1654 | |
| 1655 | |
| 1656 | printf("\n\nNumber of events: Total %d, Used %d\n",total,sum); |
| 1657 | printf("Average:\n x = (%f +- %f) mum\n y = (%f +- %f) mum\n z = (%f +- %f) mu\n",1e4*avx,1e4*eavx,1e4*avy,1e4*eavy,1e4*avz,1e4*eavz); |
| 1658 | printf("Weighted Average:\n x = (%f +- %f) mum\n y = (%f +- %f) mum\n z = (%f +- %f) mum\n",1e4*wgtavx,1e4*ewgtavx,1e4*wgtavy,1e4*ewgtavy,1e4*wgtavz,1e4*ewgtavz); |
| 1659 | printf("RMS:\n x = %f mum\n y = %f mum\n z = %f mum\n",1e4*rmsx,1e4*rmsy,1e4*rmsz); |
| 1660 | |
| 1661 | TCanvas *c = new TCanvas("c","c",0,0,1000,500); |
| 1662 | c->Divide(3,1); |
| 1663 | c->cd(1); |
| 1664 | hx->Draw(); |
| 1665 | TF1 *gx = new TF1("gx","gaus",-1000,1000); |
| 1666 | gx->SetLineColor(2); |
| 1667 | hx->Fit(gx); |
| 1668 | TF1 *gxx = (TF1*)gx->Clone("gxx"); |
| 1669 | gxx->FixParameter(2,50.); |
| 1670 | gxx->SetLineStyle(2); |
| 1671 | gxx->Draw("same"); |
| 1672 | c->cd(2); |
| 1673 | hy->Draw(); |
| 1674 | TF1 *gy = new TF1("gy","gaus",-1000,1000); |
| 1675 | gy->SetLineColor(2); |
| 1676 | hy->Fit(gy); |
| 1677 | TF1 *gyy = (TF1*)gy->Clone("gyy"); |
| 1678 | gyy->FixParameter(2,50.); |
| 1679 | gyy->SetLineStyle(2); |
| 1680 | gyy->Draw("same"); |
| 1681 | c->cd(3); |
| 1682 | hz->Draw(); |
| 1683 | TF1 *gz = new TF1("gz","gaus",-10,10); |
| 1684 | gz->SetLineColor(2); |
| 1685 | hz->Fit(gz); |
| 1686 | TF1 *gzz = (TF1*)gz->Clone("gzz"); |
| 1687 | gzz->FixParameter(2,5.3); |
| 1688 | gzz->SetLineStyle(2); |
| 1689 | gzz->Draw("same"); |
| 1690 | |
| 1691 | vtx[0] = wgtavx; |
| 1692 | vtx[1] = wgtavy; |
| 1693 | vtx[2] = wgtavz; |
| 1694 | covvtx[0] = varx; |
| 1695 | covvtx[1] = covxy; |
| 1696 | covvtx[2] = vary; |
| 1697 | covvtx[3] = covxz; |
| 1698 | covvtx[4] = covyz; |
| 1699 | covvtx[5] = 5.3; |
| 1700 | AliESDVertex *vtxmean = new AliESDVertex(vtx,covvtx,0.,(Int_t)sum); |
| 1701 | vtxmean->SetTitle("Vertex from weighted average"); |
| 1702 | TFile *out = new TFile("AliESDVertexMean.root","recreate"); |
| 1703 | vtxmean->Write("vtxmean"); |
| 1704 | out->Close(); |
| 1705 | |
| 1706 | return; |
| 1707 | } |
| 1708 | //---------------------------------------------------------------------------- |
| 1709 | void AliComputeVtxMeanFromTree(TString file="AliESDVertices.root", |
| 1710 | Int_t mincontr=20) { |
| 1711 | //----------------------------------------------------------------------- |
| 1712 | // Compute weighted mean and cov. matrix from a set of AliESDVertices |
| 1713 | //----------------------------------------------------------------------- |
| 1714 | gStyle->SetOptStat(0); |
| 1715 | //gStyle->SetOptFit(0); |
| 1716 | |
| 1717 | |
| 1718 | Double_t vtx[3],covvtx[6]; |
| 1719 | TString vtitle; |
| 1720 | Int_t nc,total=0; |
| 1721 | |
| 1722 | Double_t avx=0.; |
| 1723 | Double_t avy=0.; |
| 1724 | Double_t avz=0.; |
| 1725 | Double_t wgtavx=0.; |
| 1726 | Double_t wgtavy=0.; |
| 1727 | Double_t wgtavz=0.; |
| 1728 | Double_t sum=0.; |
| 1729 | Double_t sumwgtx=0.; |
| 1730 | Double_t sumwgty=0.; |
| 1731 | Double_t sumwgtz=0.; |
| 1732 | Double_t rmsx=0; |
| 1733 | Double_t rmsy=0; |
| 1734 | Double_t rmsz=0; |
| 1735 | Double_t eavx,eavy,eavz,ewgtavx,ewgtavy,ewgtavz; |
| 1736 | |
| 1737 | TH1F* hx = new TH1F("hx","",200,-1000,1000); |
| 1738 | hx->SetXTitle("vertex x [#mu m]"); |
| 1739 | hx->SetYTitle("events"); |
| 1740 | TH1F* hy = new TH1F("hy","",200,-1000,1000); |
| 1741 | hy->SetXTitle("vertex y [#mu m]"); |
| 1742 | hy->SetYTitle("events"); |
| 1743 | TH1F* hz = new TH1F("hz","",200,-10,10); |
| 1744 | hz->SetXTitle("vertex z [cm]"); |
| 1745 | hz->SetYTitle("events"); |
| 1746 | |
| 1747 | |
| 1748 | if(gSystem->AccessPathName(file.Data())) continue; |
| 1749 | TFile *fin = TFile::Open(file.Data()); |
| 1750 | TTree *tree = (TTree*)fin->Get("TreeV"); |
| 1751 | AliESDVertex *vertex = 0; |
| 1752 | tree->SetBranchAddress("AliESDVertex",&vertex); |
| 1753 | Int_t entries = (Int_t)tree->GetEntries(); |
| 1754 | |
| 1755 | for(Int_t i=0; i<entries; i++) { |
| 1756 | total += 1; |
| 1757 | tree->GetEvent(i); |
| 1758 | nc = vertex->GetNContributors(); |
| 1759 | if(nc<mincontr) continue; |
| 1760 | vertex->GetXYZ(vtx); |
| 1761 | vertex->GetSigmaXYZ(errvtx); |
| 1762 | //printf("%f %f %f %f %f %f\n",vtx[0],vtx[1],vtx[2],errvtx[0],errvtx[1],errvtx[2]); |
| 1763 | |
| 1764 | avx += vtx[0]; |
| 1765 | avy += vtx[1]; |
| 1766 | avz += vtx[2]; |
| 1767 | sum += 1.; |
| 1768 | wgtavx += vtx[0]/errvtx[0]/errvtx[0]; |
| 1769 | wgtavy += vtx[1]/errvtx[1]/errvtx[1]; |
| 1770 | wgtavz += vtx[2]/errvtx[2]/errvtx[2]; |
| 1771 | sumwgtx += 1./errvtx[0]/errvtx[0]; |
| 1772 | sumwgty += 1./errvtx[1]/errvtx[1]; |
| 1773 | sumwgtz += 1./errvtx[2]/errvtx[2]; |
| 1774 | |
| 1775 | hx->Fill(1e4*vtx[0]); |
| 1776 | hy->Fill(1e4*vtx[1]); |
| 1777 | hz->Fill(vtx[2]); |
| 1778 | |
| 1779 | vertex = 0; |
| 1780 | } |
| 1781 | |
| 1782 | avx /= sum; |
| 1783 | avy /= sum; |
| 1784 | avz /= sum; |
| 1785 | wgtavx /= sumwgtx; |
| 1786 | wgtavy /= sumwgty; |
| 1787 | wgtavz /= sumwgtz; |
| 1788 | ewgtavx = 1./TMath::Sqrt(sumwgtx); |
| 1789 | ewgtavy = 1./TMath::Sqrt(sumwgty); |
| 1790 | ewgtavz = 1./TMath::Sqrt(sumwgtz); |
| 1791 | |
| 1792 | |
| 1793 | for(Int_t i=0; i<entries; i++) { |
| 1794 | tree->GetEvent(i); |
| 1795 | nc = vertex->GetNContributors(); |
| 1796 | if(nc<mincontr) continue; |
| 1797 | vertex->GetXYZ(vtx); |
| 1798 | vertex->GetSigmaXYZ(errvtx); |
| 1799 | |
| 1800 | varx += (vtx[0]-avx)*(vtx[0]-avx); |
| 1801 | vary += (vtx[1]-avy)*(vtx[1]-avy); |
| 1802 | varz += (vtx[2]-avz)*(vtx[2]-avz); |
| 1803 | covxy += (vtx[0]-avx)*(vtx[1]-avy); |
| 1804 | covxz += (vtx[0]-avx)*(vtx[2]-avz); |
| 1805 | covyz += (vtx[1]-avy)*(vtx[2]-avz); |
| 1806 | |
| 1807 | vertex = 0; |
| 1808 | } |
| 1809 | |
| 1810 | varx /= sum; |
| 1811 | vary /= sum; |
| 1812 | varz /= sum; |
| 1813 | covxy /= sum; |
| 1814 | covxz /= sum; |
| 1815 | covyz /= sum; |
| 1816 | rmsx = TMath::Sqrt(varx); |
| 1817 | rmsy = TMath::Sqrt(vary); |
| 1818 | rmsz = TMath::Sqrt(varz); |
| 1819 | eavx = rmsx/TMath::Sqrt(sum); |
| 1820 | eavy = rmsy/TMath::Sqrt(sum); |
| 1821 | eavz = rmsz/TMath::Sqrt(sum); |
| 1822 | |
| 1823 | |
| 1824 | printf("\n\nNumber of events: Total %d, Used %d\n",total,sum); |
| 1825 | printf("Average:\n x = (%f +- %f) mum\n y = (%f +- %f) mum\n z = (%f +- %f) mu\n",1e4*avx,1e4*eavx,1e4*avy,1e4*eavy,1e4*avz,1e4*eavz); |
| 1826 | printf("Weighted Average:\n x = (%f +- %f) mum\n y = (%f +- %f) mum\n z = (%f +- %f) mum\n",1e4*wgtavx,1e4*ewgtavx,1e4*wgtavy,1e4*ewgtavy,1e4*wgtavz,1e4*ewgtavz); |
| 1827 | printf("RMS:\n x = %f mum\n y = %f mum\n z = %f mum\n",1e4*rmsx,1e4*rmsy,1e4*rmsz); |
| 1828 | |
| 1829 | TCanvas *c = new TCanvas("c","c",0,0,1000,500); |
| 1830 | c->Divide(3,1); |
| 1831 | c->cd(1); |
| 1832 | hx->Draw(); |
| 1833 | TF1 *gx = new TF1("gx","gaus",-1000,1000); |
| 1834 | gx->SetLineColor(2); |
| 1835 | hx->Fit(gx); |
| 1836 | TF1 *gxx = (TF1*)gx->Clone("gxx"); |
| 1837 | gxx->FixParameter(2,50.); |
| 1838 | gxx->SetLineStyle(2); |
| 1839 | gxx->Draw("same"); |
| 1840 | c->cd(2); |
| 1841 | hy->Draw(); |
| 1842 | TF1 *gy = new TF1("gy","gaus",-1000,1000); |
| 1843 | gy->SetLineColor(2); |
| 1844 | hy->Fit(gy); |
| 1845 | TF1 *gyy = (TF1*)gy->Clone("gyy"); |
| 1846 | gyy->FixParameter(2,50.); |
| 1847 | gyy->SetLineStyle(2); |
| 1848 | gyy->Draw("same"); |
| 1849 | c->cd(3); |
| 1850 | hz->Draw(); |
| 1851 | TF1 *gz = new TF1("gz","gaus",-10,10); |
| 1852 | gz->SetLineColor(2); |
| 1853 | hz->Fit(gz); |
| 1854 | TF1 *gzz = (TF1*)gz->Clone("gzz"); |
| 1855 | gzz->FixParameter(2,5.3); |
| 1856 | gzz->SetLineStyle(2); |
| 1857 | gzz->Draw("same"); |
| 1858 | |
| 1859 | vtx[0] = wgtavx; |
| 1860 | vtx[1] = wgtavy; |
| 1861 | vtx[2] = wgtavz; |
| 1862 | covvtx[0] = varx; |
| 1863 | covvtx[1] = covxy; |
| 1864 | covvtx[2] = vary; |
| 1865 | covvtx[3] = covxz; |
| 1866 | covvtx[4] = covyz; |
| 1867 | covvtx[5] = 5.3; |
| 1868 | AliESDVertex *vtxmean = new AliESDVertex(vtx,covvtx,0.,(Int_t)sum); |
| 1869 | vtxmean->SetTitle("Vertex from weighted average"); |
| 1870 | TFile *out = new TFile("AliESDVertexMean.root","recreate"); |
| 1871 | vtxmean->Write("vtxmean"); |
| 1872 | out->Close(); |
| 1873 | |
| 1874 | return; |
| 1875 | } |
| 1876 | //--------------------------------------------------------------------------- |
git://git.uio.no / u / mrichter / AliRoot.git / blame