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3a0f6479 | 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 | /* $Id$ */ | |
17 | ||
0bc7827a | 18 | //////////////////////////////////////////////////////////////////////////// |
19 | // // | |
20 | // AliTRDCalibraVdriftLinearFit // | |
21 | // // | |
22 | // Does the Vdrift an ExB calibration by applying a linear fit // | |
23 | // // | |
24 | // Author: // | |
25 | // R. Bailhache (R.Bailhache@gsi.de) // | |
26 | // // | |
27 | //////////////////////////////////////////////////////////////////////////// | |
28 | ||
3a0f6479 | 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 <TStyle.h> |
38 | #include <TCanvas.h> | |
3a0f6479 | 39 | #include <TTreeStream.h> |
661c7be6 | 40 | #include <TGraphErrors.h> |
41 | #include <TDirectory.h> | |
42 | #include <TTreeStream.h> | |
43 | #include <TF1.h> | |
3a0f6479 | 44 | |
45 | //header file | |
46 | #include "AliTRDCalibraVdriftLinearFit.h" | |
47 | ||
48 | ClassImp(AliTRDCalibraVdriftLinearFit) /*FOLD00*/ | |
49 | ||
50 | //_____________________________________________________________________ | |
51 | AliTRDCalibraVdriftLinearFit::AliTRDCalibraVdriftLinearFit() : /*FOLD00*/ | |
52 | TObject(), | |
53 | fVersion(0), | |
b2277aa2 | 54 | fNameCalibUsed(""), |
3a0f6479 | 55 | fLinearFitterHistoArray(540), |
56 | fLinearFitterPArray(540), | |
2a1a7b36 | 57 | fLinearFitterEArray(540), |
661c7be6 | 58 | fRobustFit(kTRUE), |
532be2d4 | 59 | fMinNpointsFit(11), |
661c7be6 | 60 | fDebugStreamer(0x0), |
61 | fDebugLevel(0), | |
62 | fSeeDetector(0) | |
3a0f6479 | 63 | { |
ba94744a | 64 | // |
65 | // default constructor | |
66 | // | |
3a0f6479 | 67 | } |
3a0f6479 | 68 | //_____________________________________________________________________ |
69 | AliTRDCalibraVdriftLinearFit::AliTRDCalibraVdriftLinearFit(const AliTRDCalibraVdriftLinearFit &ped) : /*FOLD00*/ | |
70 | TObject(ped), | |
71 | fVersion(ped.fVersion), | |
b2277aa2 | 72 | fNameCalibUsed(ped.fNameCalibUsed), |
3a0f6479 | 73 | fLinearFitterHistoArray(540), |
74 | fLinearFitterPArray(540), | |
2a1a7b36 | 75 | fLinearFitterEArray(540), |
661c7be6 | 76 | fRobustFit(kTRUE), |
532be2d4 | 77 | fMinNpointsFit(10), |
661c7be6 | 78 | fDebugStreamer(0x0), |
79 | fDebugLevel(0), | |
80 | fSeeDetector(0) | |
3a0f6479 | 81 | { |
82 | // | |
83 | // copy constructor | |
84 | // | |
85 | for (Int_t idet = 0; idet < 540; idet++){ | |
ba94744a | 86 | |
3a0f6479 | 87 | const TVectorD *vectorE = (TVectorD*)ped.fLinearFitterEArray.UncheckedAt(idet); |
88 | const TVectorD *vectorP = (TVectorD*)ped.fLinearFitterPArray.UncheckedAt(idet); | |
0ca1720e | 89 | const TH2S *hped = (TH2S*)ped.fLinearFitterHistoArray.UncheckedAt(idet); |
3a0f6479 | 90 | |
91 | if ( vectorE != 0x0 ) fLinearFitterEArray.AddAt(new TVectorD(*vectorE), idet); | |
92 | if ( vectorP != 0x0 ) fLinearFitterPArray.AddAt(new TVectorD(*vectorP), idet); | |
93 | if ( hped != 0x0 ){ | |
0ca1720e | 94 | TH2S *hNew = (TH2S *)hped->Clone(); |
ba94744a | 95 | //hNew->SetDirectory(0); |
3a0f6479 | 96 | fLinearFitterHistoArray.AddAt(hNew,idet); |
97 | } | |
3a0f6479 | 98 | } |
99 | } | |
100 | //_____________________________________________________________________ | |
d0569428 | 101 | AliTRDCalibraVdriftLinearFit::AliTRDCalibraVdriftLinearFit(const TObjArray &obja) : /*FOLD00*/ |
102 | TObject(), | |
103 | fVersion(0), | |
b2277aa2 | 104 | fNameCalibUsed(""), |
d0569428 | 105 | fLinearFitterHistoArray(540), |
106 | fLinearFitterPArray(540), | |
2a1a7b36 | 107 | fLinearFitterEArray(540), |
661c7be6 | 108 | fRobustFit(kTRUE), |
532be2d4 | 109 | fMinNpointsFit(10), |
661c7be6 | 110 | fDebugStreamer(0x0), |
111 | fDebugLevel(0), | |
112 | fSeeDetector(0) | |
d0569428 | 113 | { |
114 | // | |
115 | // constructor from a TObjArray | |
116 | // | |
117 | for (Int_t idet = 0; idet < 540; idet++){ | |
0ca1720e | 118 | const TH2S *hped = (TH2S*)obja.UncheckedAt(idet); |
d0569428 | 119 | if ( hped != 0x0 ){ |
0ca1720e | 120 | TH2S *hNew = (TH2S *)hped->Clone(); |
ba94744a | 121 | //hNew->SetDirectory(0); |
d0569428 | 122 | fLinearFitterHistoArray.AddAt(hNew,idet); |
123 | } | |
124 | } | |
125 | } | |
126 | //_____________________________________________________________________ | |
3a0f6479 | 127 | AliTRDCalibraVdriftLinearFit& AliTRDCalibraVdriftLinearFit::operator = (const AliTRDCalibraVdriftLinearFit &source) |
128 | { | |
129 | // | |
130 | // assignment operator | |
131 | // | |
132 | if (&source == this) return *this; | |
133 | new (this) AliTRDCalibraVdriftLinearFit(source); | |
134 | ||
135 | return *this; | |
136 | } | |
137 | //_____________________________________________________________________ | |
138 | AliTRDCalibraVdriftLinearFit::~AliTRDCalibraVdriftLinearFit() /*FOLD00*/ | |
139 | { | |
140 | // | |
141 | // destructor | |
142 | // | |
f5cda287 | 143 | fLinearFitterHistoArray.SetOwner(); |
144 | fLinearFitterPArray.SetOwner(); | |
145 | fLinearFitterEArray.SetOwner(); | |
146 | ||
1ca79a00 | 147 | fLinearFitterHistoArray.Delete(); |
148 | fLinearFitterPArray.Delete(); | |
149 | fLinearFitterEArray.Delete(); | |
150 | ||
661c7be6 | 151 | if ( fDebugStreamer ) delete fDebugStreamer; |
152 | ||
3a0f6479 | 153 | } |
64942b85 | 154 | //_____________________________________________________________________________ |
155 | void AliTRDCalibraVdriftLinearFit::Copy(TObject &c) const | |
156 | { | |
157 | // | |
158 | // Copy function | |
159 | // | |
160 | ||
161 | AliTRDCalibraVdriftLinearFit& target = (AliTRDCalibraVdriftLinearFit &) c; | |
162 | ||
163 | // Copy only the histos | |
164 | for (Int_t idet = 0; idet < 540; idet++){ | |
165 | if(fLinearFitterHistoArray.UncheckedAt(idet)){ | |
0ca1720e | 166 | TH2S *hped1 = (TH2S *)target.GetLinearFitterHisto(idet,kTRUE); |
ba94744a | 167 | //hped1->SetDirectory(0); |
0ca1720e | 168 | hped1->Add((const TH2S *)fLinearFitterHistoArray.UncheckedAt(idet)); |
64942b85 | 169 | } |
64942b85 | 170 | } |
ba94744a | 171 | |
64942b85 | 172 | TObject::Copy(c); |
173 | ||
174 | } | |
175 | //_____________________________________________________________________________ | |
6bbdc11a | 176 | Long64_t AliTRDCalibraVdriftLinearFit::Merge(const TCollection* list) |
64942b85 | 177 | { |
178 | // Merge list of objects (needed by PROOF) | |
179 | ||
180 | if (!list) | |
181 | return 0; | |
182 | ||
183 | if (list->IsEmpty()) | |
184 | return 1; | |
185 | ||
186 | TIterator* iter = list->MakeIterator(); | |
187 | TObject* obj = 0; | |
188 | ||
189 | // collection of generated histograms | |
190 | Int_t count=0; | |
191 | while((obj = iter->Next()) != 0) | |
ba94744a | 192 | { |
193 | AliTRDCalibraVdriftLinearFit* entry = dynamic_cast<AliTRDCalibraVdriftLinearFit*>(obj); | |
194 | if (entry == 0) continue; | |
195 | ||
196 | // Copy only the histos | |
197 | for (Int_t idet = 0; idet < 540; idet++){ | |
198 | if(entry->GetLinearFitterHisto(idet)){ | |
0ca1720e | 199 | TH2S *hped1 = (TH2S *)GetLinearFitterHisto(idet,kTRUE); |
ba94744a | 200 | Double_t entriesa = hped1->GetEntries(); |
0ca1720e | 201 | Double_t entriesb = ((TH2S *)entry->GetLinearFitterHisto(idet))->GetEntries(); |
ba94744a | 202 | if((entriesa + entriesb) < 5*32767) hped1->Add(entry->GetLinearFitterHisto(idet)); |
203 | } | |
64942b85 | 204 | } |
205 | ||
ba94744a | 206 | count++; |
64942b85 | 207 | } |
64942b85 | 208 | |
209 | return count; | |
210 | } | |
3a0f6479 | 211 | //_____________________________________________________________________ |
fe4ee353 | 212 | void AliTRDCalibraVdriftLinearFit::Add(const AliTRDCalibraVdriftLinearFit *ped) |
3a0f6479 | 213 | { |
214 | // | |
215 | // Add histo | |
216 | // | |
217 | ||
218 | fVersion++; | |
219 | ||
220 | for (Int_t idet = 0; idet < 540; idet++){ | |
fe4ee353 | 221 | const TH2S *hped = (TH2S*)ped->GetLinearFitterHistoNoForce(idet); |
3a0f6479 | 222 | //printf("idet %d\n",idet); |
223 | if ( hped != 0x0 ){ | |
224 | //printf("add\n"); | |
0ca1720e | 225 | TH2S *hped1 = (TH2S *)GetLinearFitterHisto(idet,kTRUE); |
ba94744a | 226 | Double_t entriesa = hped1->GetEntries(); |
227 | Double_t entriesb = hped->GetEntries(); | |
228 | if((entriesa + entriesb) < 5*32767) hped1->Add(hped); | |
3a0f6479 | 229 | } |
230 | } | |
231 | } | |
232 | //______________________________________________________________________________________ | |
0ca1720e | 233 | TH2S* AliTRDCalibraVdriftLinearFit::GetLinearFitterHisto(Int_t detector, Bool_t force) |
3a0f6479 | 234 | { |
235 | // | |
236 | // return pointer to TH2F histo | |
237 | // if force is true create a new histo if it doesn't exist allready | |
238 | // | |
239 | if ( !force || fLinearFitterHistoArray.UncheckedAt(detector) ) | |
0ca1720e | 240 | return (TH2S*)fLinearFitterHistoArray.UncheckedAt(detector); |
3a0f6479 | 241 | |
fe4ee353 | 242 | return GetLinearFitterHistoForce(detector); |
243 | ||
244 | } | |
245 | //______________________________________________________________________________________ | |
246 | TH2S* AliTRDCalibraVdriftLinearFit::GetLinearFitterHistoForce(Int_t detector) | |
247 | { | |
248 | // | |
249 | // return pointer to TH2F histo | |
250 | // if NULL create a new histo if it doesn't exist allready | |
251 | // | |
252 | if (fLinearFitterHistoArray.UncheckedAt(detector)) | |
253 | return (TH2S*)fLinearFitterHistoArray.UncheckedAt(detector); | |
254 | ||
255 | // if we are forced and TLinearFitter doesn't yes exist create it | |
256 | ||
257 | // new TH2F | |
258 | TString name("LFDV"); | |
259 | name += detector; | |
260 | name += "version"; | |
261 | name += fVersion; | |
262 | ||
263 | TH2S *lfdv = new TH2S((const Char_t *)name,(const Char_t *) name | |
264 | ,36,-0.9,0.9,48 | |
265 | ,-1.2,1.2); | |
266 | lfdv->SetXTitle("tan(phi_{track})"); | |
267 | lfdv->SetYTitle("dy/dt"); | |
268 | lfdv->SetZTitle("Number of clusters"); | |
269 | lfdv->SetStats(0); | |
270 | lfdv->SetDirectory(0); | |
271 | ||
272 | fLinearFitterHistoArray.AddAt(lfdv,detector); | |
273 | return lfdv; | |
3a0f6479 | 274 | } |
275 | //______________________________________________________________________________________ | |
276 | Bool_t AliTRDCalibraVdriftLinearFit::GetParam(Int_t detector, TVectorD *param) | |
277 | { | |
278 | // | |
279 | // return param for this detector | |
280 | // | |
281 | if ( fLinearFitterPArray.UncheckedAt(detector) ){ | |
282 | const TVectorD *vectorP = (TVectorD*)fLinearFitterPArray.UncheckedAt(detector); | |
283 | if(!param) param = new TVectorD(2); | |
284 | for(Int_t k = 0; k < 2; k++){ | |
285 | (*param)[k] = (*vectorP)[k]; | |
286 | } | |
287 | return kTRUE; | |
288 | } | |
289 | else return kFALSE; | |
290 | ||
291 | } | |
292 | //______________________________________________________________________________________ | |
293 | Bool_t AliTRDCalibraVdriftLinearFit::GetError(Int_t detector, TVectorD *error) | |
294 | { | |
295 | // | |
296 | // return error for this detector | |
297 | // | |
298 | if ( fLinearFitterEArray.UncheckedAt(detector) ){ | |
299 | const TVectorD *vectorE = (TVectorD*)fLinearFitterEArray.UncheckedAt(detector); | |
300 | if(!error) error = new TVectorD(3); | |
301 | for(Int_t k = 0; k < 3; k++){ | |
302 | (*error)[k] = (*vectorE)[k]; | |
303 | } | |
304 | return kTRUE; | |
305 | } | |
306 | else return kFALSE; | |
307 | ||
308 | } | |
309 | //______________________________________________________________________________________ | |
310 | void AliTRDCalibraVdriftLinearFit::Update(Int_t detector, Float_t tnp, Float_t pars1) | |
311 | { | |
312 | // | |
313 | // Fill the 2D histos for debugging | |
314 | // | |
ba94744a | 315 | |
0ca1720e | 316 | TH2S *h = ((TH2S *) GetLinearFitterHisto(detector,kTRUE)); |
ba94744a | 317 | Double_t nbentries = h->GetEntries(); |
0ca1720e | 318 | if(nbentries < 5*32767) h->Fill(tnp,pars1); |
3a0f6479 | 319 | |
320 | } | |
321 | //____________Functions fit Online CH2d________________________________________ | |
322 | void AliTRDCalibraVdriftLinearFit::FillPEArray() | |
323 | { | |
324 | // | |
325 | // Fill fLinearFitterPArray and fLinearFitterEArray from inside | |
326 | // | |
327 | ||
328 | ||
329 | Int_t *arrayI = new Int_t[540]; | |
330 | for(Int_t k = 0; k< 540; k++){ | |
331 | arrayI[k] = 0; | |
332 | } | |
333 | ||
334 | // Loop over histos | |
335 | for(Int_t cb = 0; cb < 540; cb++){ | |
0ca1720e | 336 | const TH2S *linearfitterhisto = (TH2S*)fLinearFitterHistoArray.UncheckedAt(cb); |
3a0f6479 | 337 | //printf("Processing the detector cb %d we find %d\n",cb, (Bool_t) linearfitterhisto); |
338 | ||
0ca1720e | 339 | if ( linearfitterhisto != 0 ){ |
3a0f6479 | 340 | |
341 | // Fill a linearfitter | |
342 | TAxis *xaxis = linearfitterhisto->GetXaxis(); | |
343 | TAxis *yaxis = linearfitterhisto->GetYaxis(); | |
344 | TLinearFitter linearfitter = TLinearFitter(2,"pol1"); | |
345 | //printf("test\n"); | |
a5dcf618 | 346 | Double_t integral = linearfitterhisto->Integral(); |
347 | //printf("Integral is %f\n",integral); | |
348 | Bool_t securitybreaking = kFALSE; | |
349 | if(TMath::Abs(integral-1199) < 0.00001) securitybreaking = kTRUE; | |
3a0f6479 | 350 | for(Int_t ibinx = 0; ibinx < linearfitterhisto->GetNbinsX(); ibinx++){ |
351 | for(Int_t ibiny = 0; ibiny < linearfitterhisto->GetNbinsY(); ibiny++){ | |
8a606eb5 | 352 | if(linearfitterhisto->GetBinContent(ibinx+1,ibiny+1)>0){ |
3a0f6479 | 353 | Double_t x = xaxis->GetBinCenter(ibinx+1); |
354 | Double_t y = yaxis->GetBinCenter(ibiny+1); | |
a5dcf618 | 355 | |
3a0f6479 | 356 | for(Int_t k = 0; k < (Int_t)linearfitterhisto->GetBinContent(ibinx+1,ibiny+1); k++){ |
a5dcf618 | 357 | if(!securitybreaking){ |
358 | linearfitter.AddPoint(&x,y); | |
359 | arrayI[cb]++; | |
360 | } | |
361 | else { | |
362 | if(arrayI[cb]< 1198){ | |
363 | linearfitter.AddPoint(&x,y); | |
364 | arrayI[cb]++; | |
365 | } | |
366 | } | |
3a0f6479 | 367 | } |
a5dcf618 | 368 | |
3a0f6479 | 369 | } |
370 | } | |
371 | } | |
372 | ||
373 | //printf("Find %d entries for the detector %d\n",arrayI[cb],cb); | |
374 | ||
375 | // Eval the linear fitter | |
376 | if(arrayI[cb]>10){ | |
377 | TVectorD *par = new TVectorD(2); | |
378 | TVectorD pare = TVectorD(2); | |
379 | TVectorD *parE = new TVectorD(3); | |
a5dcf618 | 380 | //printf("Fit\n"); |
2a1a7b36 | 381 | if(((fRobustFit) && (linearfitter.EvalRobust(0.8)==0)) || ((!fRobustFit) && (linearfitter.Eval()==0))) { |
a5dcf618 | 382 | //if((linearfitter.Eval()==0)) { |
383 | //printf("Take the param\n"); | |
c1105918 | 384 | linearfitter.GetParameters(*par); |
a5dcf618 | 385 | //printf("Done\n"); |
c1105918 | 386 | //linearfitter.GetErrors(pare); |
387 | //Float_t ppointError = TMath::Sqrt(TMath::Abs(linearfitter.GetChisquare())/arrayI[cb]); | |
388 | //(*parE)[0] = pare[0]*ppointError; | |
389 | //(*parE)[1] = pare[1]*ppointError; | |
390 | ||
391 | (*parE)[0] = 0.0; | |
392 | (*parE)[1] = 0.0; | |
393 | (*parE)[2] = (Double_t) arrayI[cb]; | |
394 | fLinearFitterPArray.AddAt(par,cb); | |
395 | fLinearFitterEArray.AddAt(parE,cb); | |
396 | ||
397 | //par->Print(); | |
398 | //parE->Print(); | |
399 | } | |
a5dcf618 | 400 | //printf("Finish\n"); |
ba94744a | 401 | } |
c1105918 | 402 | |
07f9b7f2 | 403 | //delete linearfitterhisto; |
ba94744a | 404 | |
3a0f6479 | 405 | }// if something |
fdc15553 | 406 | |
3a0f6479 | 407 | } |
a987273c | 408 | |
409 | delete [] arrayI; | |
3a0f6479 | 410 | |
d1e1a064 | 411 | } |
c1105918 | 412 | |
661c7be6 | 413 | //____________Functions fit Online CH2d________________________________________ |
414 | void AliTRDCalibraVdriftLinearFit::FillPEArray2() | |
415 | { | |
416 | // | |
417 | // Fill fFitterPArray and fFitterEArray from inside | |
418 | // | |
419 | ||
420 | // Loop over histos | |
421 | TF1 *f1 = new TF1("f1","[0]+[1]*x",-1,1); | |
422 | ||
423 | for(Int_t cb = 0; cb < 540; cb++){ | |
424 | //const TH2S *fitterhisto = (TH2S*)fLinearFitterHistoArray.UncheckedAt(cb); | |
425 | TH2S *fitterhisto = (TH2S*)fLinearFitterHistoArray.UncheckedAt(cb); | |
426 | //printf("Processing the detector cb %d we find %d\n",cb, (Bool_t) fitterhisto); | |
427 | ||
428 | if ( fitterhisto != 0 ){ | |
429 | ||
430 | Int_t nEntries=0; | |
431 | TGraphErrors *gg=DrawMS(fitterhisto,nEntries); | |
ce42378b | 432 | if (!gg) continue; |
661c7be6 | 433 | // Number of points of the TGraphErrors |
532be2d4 | 434 | //printf("Number of points %d for detector %d\n",gg->GetN(),cb); |
435 | if(gg->GetN() < fMinNpointsFit) { | |
661c7be6 | 436 | if(gg) delete gg; |
437 | continue; | |
438 | } | |
439 | //printf("det %d, number of points %d, nEntries %d\n",cb,gg->GetN(),nEntries); | |
440 | gg->Fit(f1,"Q0"); | |
441 | ||
442 | TVectorD *par = new TVectorD(2); | |
443 | TVectorD *parE = new TVectorD(3); | |
444 | (*parE)[0] = 0.0; | |
445 | (*parE)[1] = 0.0; | |
446 | (*parE)[2] = (Double_t) nEntries; | |
447 | (*par)[0] = f1->GetParameter(0); | |
448 | (*par)[1] = f1->GetParameter(1); | |
449 | fLinearFitterPArray.AddAt(par,cb); | |
450 | fLinearFitterEArray.AddAt(parE,cb); | |
532be2d4 | 451 | //printf("Value %f for detector %d\n",(*par)[1],cb); |
661c7be6 | 452 | |
453 | if(fDebugLevel==0) { | |
454 | if(gg) delete gg; | |
455 | } | |
456 | else { | |
457 | if(cb==fSeeDetector) { | |
458 | gStyle->SetPalette(1); | |
459 | gStyle->SetOptStat(1111); | |
460 | gStyle->SetPadBorderMode(0); | |
461 | gStyle->SetCanvasColor(10); | |
462 | gStyle->SetPadLeftMargin(0.13); | |
463 | gStyle->SetPadRightMargin(0.01); | |
464 | TCanvas *stat = new TCanvas("stat","",50,50,600,800); | |
465 | stat->cd(1); | |
466 | fitterhisto->Draw("colz"); | |
467 | gg->Draw("P"); | |
468 | f1->Draw("same"); | |
469 | break; | |
470 | } | |
471 | } | |
472 | } | |
473 | } | |
474 | if(fDebugLevel==0) delete f1; | |
475 | } | |
476 | ||
477 | //_________Helper function__________________________________________________ | |
478 | TGraphErrors* AliTRDCalibraVdriftLinearFit::DrawMS(const TH2 *const h2, Int_t &nEntries) | |
479 | { | |
92df0132 | 480 | // |
481 | // Debug function | |
482 | // | |
483 | ||
661c7be6 | 484 | TF1 fg("fg", "gaus", -10., 30.); |
485 | TGraphErrors *gp = new TGraphErrors(); | |
c1105918 | 486 | |
661c7be6 | 487 | TAxis *ax(h2->GetXaxis()); |
488 | TAxis *ay(h2->GetYaxis()); | |
489 | TH1D *h1(NULL); | |
490 | for(Int_t ipt(0), jpt(1), ig(0); ipt<ax->GetNbins(); ipt++, jpt++){ | |
491 | h1 = h2->ProjectionY("py", jpt, jpt); | |
492 | fg.SetParameter(1, h1->GetMean()); | |
493 | //Float_t x(ax->GetBinCenter(jpt)); | |
494 | Int_t n=Int_t(h1->Integral(1, h1->GetNbinsX())); | |
495 | nEntries+=n; | |
496 | if(n < 15){ | |
497 | //Warning("drawMS()", Form("reject x[%d]=%f on n=%d", jpt, x, n)); | |
498 | continue; | |
499 | } | |
500 | h1->Fit(&fg, "WWQ0"); | |
501 | if(fg.GetNDF()<2){ | |
502 | //Warning("drawMS()", Form("reject x[%d]=%f on NDF=%d", jpt, x, fg.GetNDF())); | |
503 | continue; | |
504 | } | |
64c7fdf8 | 505 | 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 | 506 | gp->SetPoint(ig, ax->GetBinCenter(jpt), fg.GetParameter(1)); |
507 | gp->SetPointError(ig, 0, TMath::Sqrt(pow(fg.GetParError(1),2) + (1/pow(fg.GetParameter(0),2)))); | |
508 | ig++; | |
509 | } | |
510 | delete h1; | |
511 | return gp; | |
512 | } |