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Commit | Line | Data |
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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); | |
fee9ef0d | 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 | ||
fee9ef0d | 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 | //--------------------------------------------------------------------------- |