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a0bb5615 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
7 | * Permission to use, copy, modify and distribute this software and its * | |
8 | * documentation strictly for non-commercial purposes is hereby granted * | |
9 | * without fee, provided that the above copyright notice appears in all * | |
10 | * copies and that both the copyright notice and this permission notice * | |
11 | * appear in the supporting documentation. The authors make no claims * | |
12 | * about the suitability of this software for any purpose. It is * | |
13 | * provided "as is" without express or implied warranty. * | |
14 | **************************************************************************/ | |
15 | ||
16 | /* $Id: AliTRDCalibraExbAltFit.cxx 46327 2011-01-10 13:29:56Z cblume $ */ | |
17 | ||
18 | //////////////////////////////////////////////////////////////////////////// | |
19 | // // | |
20 | // AliTRDCalibraExbAltFit // | |
21 | // // | |
22 | // Does the ExB calibration by applying a quadratic fit // | |
23 | // // | |
24 | // Author: // | |
25 | // R. Bailhache (R.Bailhache@gsi.de) // | |
26 | // // | |
27 | //////////////////////////////////////////////////////////////////////////// | |
28 | ||
29 | //Root includes | |
30 | #include <TObjArray.h> | |
31 | #include <TH2F.h> | |
32 | #include <TString.h> | |
33 | #include <TVectorD.h> | |
34 | #include <TAxis.h> | |
35 | #include <TLinearFitter.h> | |
36 | #include <TMath.h> | |
661c7be6 | 37 | #include <TDirectory.h> |
a0bb5615 | 38 | #include <TTreeStream.h> |
661c7be6 | 39 | #include <TGraphErrors.h> |
40 | #include <TF1.h> | |
a0bb5615 | 41 | |
42 | //header file | |
43 | #include "AliTRDCalibraExbAltFit.h" | |
44 | ||
45 | ClassImp(AliTRDCalibraExbAltFit) /*FOLD00*/ | |
46 | ||
47 | //_____________________________________________________________________ | |
48 | AliTRDCalibraExbAltFit::AliTRDCalibraExbAltFit() : /*FOLD00*/ | |
49 | TObject(), | |
50 | fVersion(0), | |
51 | fFitterHistoArray(540), | |
52 | fFitterPArray(540), | |
2a1a7b36 | 53 | fFitterEArray(540), |
661c7be6 | 54 | fRobustFit(kFALSE), |
55 | fDebugStreamer(0x0), | |
56 | fDebugLevel(0) | |
a0bb5615 | 57 | { |
58 | // | |
59 | // default constructor | |
60 | // | |
61 | } | |
62 | //_____________________________________________________________________ | |
63 | AliTRDCalibraExbAltFit::AliTRDCalibraExbAltFit(const AliTRDCalibraExbAltFit &ped) : /*FOLD00*/ | |
64 | TObject(ped), | |
65 | fVersion(ped.fVersion), | |
66 | fFitterHistoArray(540), | |
67 | fFitterPArray(540), | |
2a1a7b36 | 68 | fFitterEArray(540), |
661c7be6 | 69 | fRobustFit(kFALSE), |
70 | fDebugStreamer(0x0), | |
71 | fDebugLevel(0) | |
a0bb5615 | 72 | { |
73 | // | |
74 | // copy constructor | |
75 | // | |
76 | for (Int_t idet = 0; idet < 540; idet++){ | |
77 | ||
78 | const TVectorD *vectorE = (TVectorD*)ped.fFitterEArray.UncheckedAt(idet); | |
79 | const TVectorD *vectorP = (TVectorD*)ped.fFitterPArray.UncheckedAt(idet); | |
80 | const TH2S *hped = (TH2S*)ped.fFitterHistoArray.UncheckedAt(idet); | |
81 | ||
82 | if ( vectorE != 0x0 ) fFitterEArray.AddAt(new TVectorD(*vectorE), idet); | |
83 | if ( vectorP != 0x0 ) fFitterPArray.AddAt(new TVectorD(*vectorP), idet); | |
84 | if ( hped != 0x0 ){ | |
85 | TH2S *hNew = (TH2S *)hped->Clone(); | |
86 | //hNew->SetDirectory(0); | |
87 | fFitterHistoArray.AddAt(hNew,idet); | |
88 | } | |
89 | } | |
90 | } | |
91 | //_____________________________________________________________________ | |
92 | AliTRDCalibraExbAltFit::AliTRDCalibraExbAltFit(const TObjArray &obja) : /*FOLD00*/ | |
93 | TObject(), | |
94 | fVersion(0), | |
95 | fFitterHistoArray(540), | |
96 | fFitterPArray(540), | |
2a1a7b36 | 97 | fFitterEArray(540), |
661c7be6 | 98 | fRobustFit(kFALSE), |
99 | fDebugStreamer(0x0), | |
100 | fDebugLevel(0) | |
a0bb5615 | 101 | { |
102 | // | |
103 | // constructor from a TObjArray | |
104 | // | |
105 | for (Int_t idet = 0; idet < 540; idet++){ | |
106 | const TH2S *hped = (TH2S*)obja.UncheckedAt(idet); | |
107 | if ( hped != 0x0 ){ | |
108 | TH2S *hNew = (TH2S *)hped->Clone(); | |
109 | //hNew->SetDirectory(0); | |
110 | fFitterHistoArray.AddAt(hNew,idet); | |
111 | } | |
112 | } | |
113 | } | |
114 | //_____________________________________________________________________ | |
115 | AliTRDCalibraExbAltFit& AliTRDCalibraExbAltFit::operator = (const AliTRDCalibraExbAltFit &source) | |
116 | { | |
117 | // | |
118 | // assignment operator | |
119 | // | |
120 | if (&source == this) return *this; | |
121 | new (this) AliTRDCalibraExbAltFit(source); | |
122 | ||
123 | return *this; | |
124 | } | |
125 | //_____________________________________________________________________ | |
126 | AliTRDCalibraExbAltFit::~AliTRDCalibraExbAltFit() /*FOLD00*/ | |
127 | { | |
128 | // | |
129 | // destructor | |
130 | // | |
131 | fFitterHistoArray.SetOwner(); | |
132 | fFitterPArray.SetOwner(); | |
133 | fFitterEArray.SetOwner(); | |
134 | ||
135 | fFitterHistoArray.Delete(); | |
136 | fFitterPArray.Delete(); | |
137 | fFitterEArray.Delete(); | |
138 | ||
661c7be6 | 139 | if ( fDebugStreamer ) delete fDebugStreamer; |
140 | ||
a0bb5615 | 141 | } |
142 | //_____________________________________________________________________________ | |
143 | void AliTRDCalibraExbAltFit::Copy(TObject &c) const | |
144 | { | |
145 | // | |
146 | // Copy function | |
147 | // | |
148 | ||
149 | AliTRDCalibraExbAltFit& target = (AliTRDCalibraExbAltFit &) c; | |
150 | ||
151 | // Copy only the histos | |
152 | for (Int_t idet = 0; idet < 540; idet++){ | |
153 | if(fFitterHistoArray.UncheckedAt(idet)){ | |
154 | TH2S *hped1 = (TH2S *)target.GetFitterHisto(idet,kTRUE); | |
155 | //hped1->SetDirectory(0); | |
156 | hped1->Add((const TH2S *)fFitterHistoArray.UncheckedAt(idet)); | |
157 | } | |
158 | } | |
159 | ||
160 | TObject::Copy(c); | |
161 | ||
162 | } | |
163 | //_____________________________________________________________________________ | |
164 | Long64_t AliTRDCalibraExbAltFit::Merge(const TCollection* list) | |
165 | { | |
166 | // Merge list of objects (needed by PROOF) | |
167 | ||
168 | if (!list) | |
169 | return 0; | |
170 | ||
171 | if (list->IsEmpty()) | |
172 | return 1; | |
173 | ||
174 | TIterator* iter = list->MakeIterator(); | |
175 | TObject* obj = 0; | |
176 | ||
177 | // collection of generated histograms | |
178 | Int_t count=0; | |
179 | while((obj = iter->Next()) != 0) | |
180 | { | |
181 | AliTRDCalibraExbAltFit* entry = dynamic_cast<AliTRDCalibraExbAltFit*>(obj); | |
182 | if (entry == 0) continue; | |
183 | ||
184 | // Copy only the histos | |
185 | for (Int_t idet = 0; idet < 540; idet++){ | |
186 | if(entry->GetFitterHisto(idet)){ | |
187 | TH2S *hped1 = (TH2S *)GetFitterHisto(idet,kTRUE); | |
188 | Double_t entriesa = hped1->GetEntries(); | |
189 | Double_t entriesb = ((TH2S *)entry->GetFitterHisto(idet))->GetEntries(); | |
190 | if((entriesa + entriesb) < 5*32767) hped1->Add(entry->GetFitterHisto(idet)); | |
191 | } | |
192 | } | |
193 | ||
194 | count++; | |
195 | } | |
196 | ||
197 | return count; | |
198 | } | |
199 | //_____________________________________________________________________ | |
200 | void AliTRDCalibraExbAltFit::Add(const AliTRDCalibraExbAltFit *ped) | |
201 | { | |
202 | // | |
203 | // Add histo | |
204 | // | |
205 | ||
206 | fVersion++; | |
207 | ||
208 | for (Int_t idet = 0; idet < 540; idet++){ | |
209 | const TH2S *hped = (TH2S*)ped->GetFitterHistoNoForce(idet); | |
210 | //printf("idet %d\n",idet); | |
211 | if ( hped != 0x0 ){ | |
212 | //printf("add\n"); | |
213 | TH2S *hped1 = (TH2S *)GetFitterHisto(idet,kTRUE); | |
214 | Double_t entriesa = hped1->GetEntries(); | |
215 | Double_t entriesb = hped->GetEntries(); | |
216 | if((entriesa + entriesb) < 5*32767) hped1->Add(hped); | |
217 | } | |
218 | } | |
219 | } | |
220 | //______________________________________________________________________________________ | |
221 | TH2S* AliTRDCalibraExbAltFit::GetFitterHisto(Int_t detector, Bool_t force) | |
222 | { | |
223 | // | |
224 | // return pointer to TH2F histo | |
225 | // if force is true create a new histo if it doesn't exist allready | |
226 | // | |
227 | if ( !force || fFitterHistoArray.UncheckedAt(detector) ) | |
228 | return (TH2S*)fFitterHistoArray.UncheckedAt(detector); | |
229 | ||
230 | return GetFitterHistoForce(detector); | |
231 | ||
232 | } | |
233 | //______________________________________________________________________________________ | |
234 | TH2S* AliTRDCalibraExbAltFit::GetFitterHistoForce(Int_t detector) | |
235 | { | |
236 | // | |
237 | // return pointer to TH2F histo | |
238 | // if NULL create a new histo if it doesn't exist allready | |
239 | // | |
240 | if (fFitterHistoArray.UncheckedAt(detector)) | |
241 | return (TH2S*)fFitterHistoArray.UncheckedAt(detector); | |
242 | ||
243 | // if we are forced and TLinearFitter doesn't yes exist create it | |
244 | ||
245 | // new TH2F | |
246 | TString name("LFEXB"); | |
247 | name += detector; | |
248 | name += "version"; | |
249 | name += fVersion; | |
250 | ||
251 | TH2S *lfdv = new TH2S((const Char_t *)name,(const Char_t *) name, | |
252 | 30, -TMath::DegToRad()*45, TMath::DegToRad()*45, | |
253 | 30, 0.3, 1.4); | |
254 | lfdv->SetXTitle("tan(phi_{track})"); | |
255 | lfdv->SetYTitle("rms"); | |
256 | lfdv->SetZTitle("Number of tracklets"); | |
257 | lfdv->SetStats(0); | |
258 | lfdv->SetDirectory(0); | |
259 | ||
260 | fFitterHistoArray.AddAt(lfdv,detector); | |
261 | return lfdv; | |
262 | } | |
263 | //______________________________________________________________________________________ | |
264 | Bool_t AliTRDCalibraExbAltFit::GetParam(Int_t detector, TVectorD *param) | |
265 | { | |
266 | // | |
267 | // return param for this detector | |
268 | // | |
269 | if ( fFitterPArray.UncheckedAt(detector) ){ | |
270 | const TVectorD *vectorP = (TVectorD*)fFitterPArray.UncheckedAt(detector); | |
271 | if(!param) param = new TVectorD(vectorP->GetNoElements()); | |
272 | for(Int_t k = 0; k < vectorP->GetNoElements(); k++){ | |
273 | (*param)[k] = (*vectorP)[k]; | |
274 | } | |
275 | return kTRUE; | |
276 | } | |
277 | else return kFALSE; | |
278 | ||
279 | } | |
280 | //______________________________________________________________________________________ | |
281 | Bool_t AliTRDCalibraExbAltFit::GetError(Int_t detector, TVectorD *error) | |
282 | { | |
283 | // | |
284 | // return error for this detector | |
285 | // | |
286 | if ( fFitterEArray.UncheckedAt(detector) ){ | |
287 | const TVectorD *vectorE = (TVectorD*)fFitterEArray.UncheckedAt(detector); | |
288 | if(!error) error = new TVectorD(vectorE->GetNoElements()); | |
289 | for(Int_t k = 0; k < vectorE->GetNoElements(); k++){ | |
290 | (*error)[k] = (*vectorE)[k]; | |
291 | } | |
292 | return kTRUE; | |
293 | } | |
294 | else return kFALSE; | |
295 | ||
296 | } | |
297 | //______________________________________________________________________________________ | |
298 | void AliTRDCalibraExbAltFit::Update(Int_t detector, Float_t tnp, Float_t pars1) | |
299 | { | |
300 | // | |
301 | // Fill the 2D histos for debugging | |
302 | // | |
303 | ||
304 | TH2S *h = ((TH2S *) GetFitterHisto(detector,kTRUE)); | |
305 | Double_t nbentries = h->GetEntries(); | |
306 | if(nbentries < 5*32767) h->Fill(tnp,pars1); | |
307 | ||
308 | } | |
309 | //____________Functions fit Online CH2d________________________________________ | |
310 | void AliTRDCalibraExbAltFit::FillPEArray() | |
311 | { | |
312 | // | |
313 | // Fill fFitterPArray and fFitterEArray from inside | |
314 | // | |
315 | ||
316 | ||
317 | Int_t *arrayI = new Int_t[540]; | |
318 | for(Int_t k = 0; k< 540; k++){ | |
319 | arrayI[k] = 0; | |
320 | } | |
321 | ||
322 | // Loop over histos | |
323 | for(Int_t cb = 0; cb < 540; cb++){ | |
324 | const TH2S *fitterhisto = (TH2S*)fFitterHistoArray.UncheckedAt(cb); | |
325 | //printf("Processing the detector cb %d we find %d\n",cb, (Bool_t) fitterhisto); | |
326 | ||
327 | if ( fitterhisto != 0 ){ | |
328 | ||
329 | // Fill a fitter | |
330 | TAxis *xaxis = fitterhisto->GetXaxis(); | |
331 | TAxis *yaxis = fitterhisto->GetYaxis(); | |
332 | TLinearFitter fitter = TLinearFitter(3,"pol2"); | |
333 | //printf("test\n"); | |
334 | Double_t integral = fitterhisto->Integral(); | |
335 | //printf("Integral is %f\n",integral); | |
336 | Bool_t securitybreaking = kFALSE; | |
337 | if(TMath::Abs(integral-1199) < 0.00001) securitybreaking = kTRUE; | |
338 | for(Int_t ibinx = 0; ibinx < fitterhisto->GetNbinsX(); ibinx++){ | |
339 | for(Int_t ibiny = 0; ibiny < fitterhisto->GetNbinsY(); ibiny++){ | |
340 | if(fitterhisto->GetBinContent(ibinx+1,ibiny+1)>0){ | |
341 | Double_t x = xaxis->GetBinCenter(ibinx+1); | |
342 | Double_t y = yaxis->GetBinCenter(ibiny+1); | |
343 | ||
344 | for(Int_t k = 0; k < (Int_t)fitterhisto->GetBinContent(ibinx+1,ibiny+1); k++){ | |
345 | if(!securitybreaking){ | |
346 | fitter.AddPoint(&x,y); | |
347 | arrayI[cb]++; | |
348 | } | |
349 | else { | |
350 | if(arrayI[cb]< 1198){ | |
351 | fitter.AddPoint(&x,y); | |
352 | arrayI[cb]++; | |
353 | } | |
354 | } | |
355 | } | |
356 | ||
357 | } | |
358 | } | |
359 | } | |
360 | ||
361 | //printf("Find %d entries for the detector %d\n",arrayI[cb],cb); | |
362 | ||
363 | // Eval the fitter | |
364 | if(arrayI[cb]>15){ | |
365 | TVectorD *par = new TVectorD(3); | |
366 | TVectorD pare = TVectorD(2); | |
367 | TVectorD *parE = new TVectorD(3); | |
368 | //printf("Fit\n"); | |
2a1a7b36 | 369 | //if((fitter.EvalRobust(0.8)==0)) { |
370 | //if((fitter.EvalRobust()==0)) { | |
371 | if(((fRobustFit) && (fitter.EvalRobust(0.8)==0)) || ((!fRobustFit) && (fitter.Eval()==0))) { | |
a0bb5615 | 372 | //if((fitter.Eval()==0)) { |
373 | //printf("Take the param\n"); | |
374 | fitter.GetParameters(*par); | |
375 | //printf("Done\n"); | |
376 | //fitter.GetErrors(*pare); | |
377 | //Float_t ppointError = TMath::Sqrt(TMath::Abs(fitter.GetChisquare())/arrayI[cb]); | |
378 | //(*parE)[0] = pare[0]*ppointError; | |
379 | //(*parE)[1] = pare[1]*ppointError; | |
380 | (*parE)[0] = 0.0; | |
381 | (*parE)[1] = 0.0; | |
382 | (*parE)[2] = (Double_t) arrayI[cb]; | |
383 | fFitterPArray.AddAt(par,cb); | |
384 | fFitterEArray.AddAt(parE,cb); | |
385 | ||
386 | //par->Print(); | |
387 | //parE->Print(); | |
388 | } | |
389 | //printf("Finish\n"); | |
390 | } | |
391 | ||
392 | //delete fitterhisto; | |
393 | ||
394 | }// if something | |
395 | ||
396 | } | |
397 | ||
398 | delete [] arrayI; | |
399 | ||
400 | } | |
401 | ||
661c7be6 | 402 | //____________Functions fit Online CH2d________________________________________ |
403 | void AliTRDCalibraExbAltFit::FillPEArray2() | |
404 | { | |
405 | // | |
406 | // Fill fFitterPArray and fFitterEArray from inside | |
407 | // | |
408 | ||
409 | // Loop over histos | |
410 | ||
411 | for(Int_t cb = 0; cb < 540; cb++){ | |
412 | TH2S *fitterhisto = (TH2S*)fFitterHistoArray.UncheckedAt(cb); | |
413 | //printf("Processing the detector cb %d we find %d\n",cb, (Bool_t) fitterhisto); | |
414 | ||
415 | if ( fitterhisto != 0 ){ | |
416 | TF1 *f1 = new TF1("f1","[0]*(x-[1])**2+[2]",-1,1); | |
417 | ||
418 | Int_t nEntries=0; | |
419 | TGraphErrors *gg=DrawMS(fitterhisto,nEntries); | |
ce42378b | 420 | if (!gg) continue; |
661c7be6 | 421 | // printf("N: %i\n",gg->GetN()); |
422 | // printf("entries: %i\n",nEntries); | |
423 | ||
424 | if(gg->GetN() < 20) { | |
425 | if(gg) delete gg; | |
426 | continue; | |
427 | } | |
428 | gg->Fit(f1,"Q0"); | |
429 | ||
430 | TVectorD *par = new TVectorD(3); | |
431 | TVectorD *parE = new TVectorD(3); | |
432 | (*parE)[0] = 0.0; | |
433 | (*parE)[1] = 0.0; | |
434 | (*parE)[2] = (Double_t) nEntries; | |
435 | (*par)[0] = f1->GetParameter(0)*TMath::Power(f1->GetParameter(1),2)+f1->GetParameter(2); | |
436 | (*par)[1] = -2*f1->GetParameter(0)*f1->GetParameter(1); | |
437 | (*par)[2] = f1->GetParameter(0); | |
438 | fFitterPArray.AddAt(par,cb); | |
439 | fFitterEArray.AddAt(parE,cb); | |
440 | ||
441 | // if ( !fDebugStreamer ) { | |
442 | // //debug stream | |
443 | // TDirectory *backup = gDirectory; | |
444 | // fDebugStreamer = new TTreeSRedirector("TRDdebugCalibraFill.root"); | |
445 | // if ( backup ) backup->cd(); //we don't want to be cd'd to the debug streamer | |
446 | // } | |
447 | ||
448 | // if(cb==513){ | |
449 | // fitterhisto->Draw(); | |
450 | // gg->Draw("P"); | |
451 | // f1->Draw("same"); | |
452 | // } | |
453 | // double exb=f1->GetParameter(1); | |
454 | // (* fDebugStreamer) << "FindP1TrackPHtrackletV1"<< | |
455 | // //"snpright="<<snpright<< | |
456 | // "det="<<cb<< | |
457 | // "h2="<<(TObject*)fitterhisto<< | |
458 | // "gg="<<gg<< | |
459 | // "f1="<<f1<< | |
460 | // "exb="<<exb<< | |
461 | // "\n"; | |
462 | ||
463 | //if(cb!=513){ | |
464 | delete gg; | |
465 | delete f1; | |
466 | //} | |
467 | } | |
468 | } | |
469 | //if(fDebugStreamer) delete fDebugStreamer; | |
470 | } | |
471 | ||
472 | //_________Helper function__________________________________________________ | |
473 | TGraphErrors* AliTRDCalibraExbAltFit::DrawMS(const TH2 *const h2, Int_t &nEntries) | |
474 | { | |
92df0132 | 475 | // |
476 | // Debug function | |
477 | // | |
478 | ||
479 | ||
661c7be6 | 480 | TF1 fg("fg", "gaus", -10., 30.); |
481 | TGraphErrors *gp = new TGraphErrors(); | |
482 | ||
483 | TAxis *ax(h2->GetXaxis()); | |
484 | TAxis *ay(h2->GetYaxis()); | |
485 | TH1D *h1(NULL); | |
486 | for(Int_t ipt(0), jpt(1), ig(0); ipt<ax->GetNbins(); ipt++, jpt++){ | |
487 | h1 = h2->ProjectionY("py", jpt, jpt); | |
488 | fg.SetParameter(1, h1->GetMean()); | |
489 | //Float_t x(ax->GetBinCenter(jpt)); | |
490 | Int_t n=Int_t(h1->Integral(1, h1->GetNbinsX())); | |
491 | nEntries+=n; | |
492 | if(n < 5){ | |
493 | //Warning("drawMS()", Form("reject x[%d]=%f on n=%d", jpt, x, n)); | |
494 | continue; | |
495 | } | |
496 | h1->Fit(&fg, "WWQ0"); | |
497 | if(fg.GetNDF()<2){ | |
498 | //Warning("drawMS()", Form("reject x[%d]=%f on NDF=%d", jpt, x, fg.GetNDF())); | |
499 | continue; | |
500 | } | |
64c7fdf8 | 501 | if(((fg.GetParameter(1)+fg.GetParameter(2)/2)>ay->GetXmax()) || ((fg.GetParameter(1)-fg.GetParameter(2)/2)<ay->GetXmin()) || (TMath::Abs(fg.GetParameter(0))< 0.00001)) continue; |
661c7be6 | 502 | gp->SetPoint(ig, ax->GetBinCenter(jpt), fg.GetParameter(1)); |
503 | gp->SetPointError(ig, 0, TMath::Sqrt(pow(fg.GetParError(1),2) + (1/pow(fg.GetParameter(0),2)))); | |
504 | ig++; | |
505 | } | |
506 | delete h1; | |
507 | return gp; | |
508 | } |