]> git.uio.no Git - u/mrichter/AliRoot.git/blame - TRD/AliTRDCalibraExbAltFit.cxx
git://git.uio.no / u / mrichter / AliRoot.git / blame
? search:
summary | shortlog | log | commit | commitdiff | tree
blob | blame (incremental) | history | HEAD
- new gain calibb
[u/mrichter/AliRoot.git] / TRD / AliTRDCalibraExbAltFit.cxx
CommitLineData
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>
37#include <TTreeStream.h>
38
39
40//header file
41#include "AliTRDCalibraExbAltFit.h"
42
43ClassImp(AliTRDCalibraExbAltFit) /*FOLD00*/
44
45//_____________________________________________________________________
46AliTRDCalibraExbAltFit::AliTRDCalibraExbAltFit() : /*FOLD00*/
47 TObject(),
48 fVersion(0),
49 fFitterHistoArray(540),
50 fFitterPArray(540),
51 fFitterEArray(540)
52{
53 //
54 // default constructor
55 //
56}
57//_____________________________________________________________________
58AliTRDCalibraExbAltFit::AliTRDCalibraExbAltFit(const AliTRDCalibraExbAltFit &ped) : /*FOLD00*/
59 TObject(ped),
60 fVersion(ped.fVersion),
61 fFitterHistoArray(540),
62 fFitterPArray(540),
63 fFitterEArray(540)
64{
65 //
66 // copy constructor
67 //
68 for (Int_t idet = 0; idet < 540; idet++){
69
70 const TVectorD *vectorE = (TVectorD*)ped.fFitterEArray.UncheckedAt(idet);
71 const TVectorD *vectorP = (TVectorD*)ped.fFitterPArray.UncheckedAt(idet);
72 const TH2S *hped = (TH2S*)ped.fFitterHistoArray.UncheckedAt(idet);
73
74 if ( vectorE != 0x0 ) fFitterEArray.AddAt(new TVectorD(*vectorE), idet);
75 if ( vectorP != 0x0 ) fFitterPArray.AddAt(new TVectorD(*vectorP), idet);
76 if ( hped != 0x0 ){
77 TH2S *hNew = (TH2S *)hped->Clone();
78 //hNew->SetDirectory(0);
79 fFitterHistoArray.AddAt(hNew,idet);
80 }
81 }
82}
83//_____________________________________________________________________
84AliTRDCalibraExbAltFit::AliTRDCalibraExbAltFit(const TObjArray &obja) : /*FOLD00*/
85 TObject(),
86 fVersion(0),
87 fFitterHistoArray(540),
88 fFitterPArray(540),
89 fFitterEArray(540)
90{
91 //
92 // constructor from a TObjArray
93 //
94 for (Int_t idet = 0; idet < 540; idet++){
95 const TH2S *hped = (TH2S*)obja.UncheckedAt(idet);
96 if ( hped != 0x0 ){
97 TH2S *hNew = (TH2S *)hped->Clone();
98 //hNew->SetDirectory(0);
99 fFitterHistoArray.AddAt(hNew,idet);
100 }
101 }
102}
103//_____________________________________________________________________
104AliTRDCalibraExbAltFit& AliTRDCalibraExbAltFit::operator = (const AliTRDCalibraExbAltFit &source)
105{
106 //
107 // assignment operator
108 //
109 if (&source == this) return *this;
110 new (this) AliTRDCalibraExbAltFit(source);
111
112 return *this;
113}
114//_____________________________________________________________________
115AliTRDCalibraExbAltFit::~AliTRDCalibraExbAltFit() /*FOLD00*/
116{
117 //
118 // destructor
119 //
120 fFitterHistoArray.SetOwner();
121 fFitterPArray.SetOwner();
122 fFitterEArray.SetOwner();
123
124 fFitterHistoArray.Delete();
125 fFitterPArray.Delete();
126 fFitterEArray.Delete();
127
128}
129//_____________________________________________________________________________
130void AliTRDCalibraExbAltFit::Copy(TObject &c) const
131{
132 //
133 // Copy function
134 //
135
136 AliTRDCalibraExbAltFit& target = (AliTRDCalibraExbAltFit &) c;
137
138 // Copy only the histos
139 for (Int_t idet = 0; idet < 540; idet++){
140 if(fFitterHistoArray.UncheckedAt(idet)){
141 TH2S *hped1 = (TH2S *)target.GetFitterHisto(idet,kTRUE);
142 //hped1->SetDirectory(0);
143 hped1->Add((const TH2S *)fFitterHistoArray.UncheckedAt(idet));
144 }
145 }
146
147 TObject::Copy(c);
148
149}
150//_____________________________________________________________________________
151Long64_t AliTRDCalibraExbAltFit::Merge(const TCollection* list)
152{
153 // Merge list of objects (needed by PROOF)
154
155 if (!list)
156 return 0;
157
158 if (list->IsEmpty())
159 return 1;
160
161 TIterator* iter = list->MakeIterator();
162 TObject* obj = 0;
163
164 // collection of generated histograms
165 Int_t count=0;
166 while((obj = iter->Next()) != 0)
167 {
168 AliTRDCalibraExbAltFit* entry = dynamic_cast<AliTRDCalibraExbAltFit*>(obj);
169 if (entry == 0) continue;
170
171 // Copy only the histos
172 for (Int_t idet = 0; idet < 540; idet++){
173 if(entry->GetFitterHisto(idet)){
174 TH2S *hped1 = (TH2S *)GetFitterHisto(idet,kTRUE);
175 Double_t entriesa = hped1->GetEntries();
176 Double_t entriesb = ((TH2S *)entry->GetFitterHisto(idet))->GetEntries();
177 if((entriesa + entriesb) < 5*32767) hped1->Add(entry->GetFitterHisto(idet));
178 }
179 }
180
181 count++;
182 }
183
184 return count;
185}
186//_____________________________________________________________________
187void AliTRDCalibraExbAltFit::Add(const AliTRDCalibraExbAltFit *ped)
188{
189 //
190 // Add histo
191 //
192
193 fVersion++;
194
195 for (Int_t idet = 0; idet < 540; idet++){
196 const TH2S *hped = (TH2S*)ped->GetFitterHistoNoForce(idet);
197 //printf("idet %d\n",idet);
198 if ( hped != 0x0 ){
199 //printf("add\n");
200 TH2S *hped1 = (TH2S *)GetFitterHisto(idet,kTRUE);
201 Double_t entriesa = hped1->GetEntries();
202 Double_t entriesb = hped->GetEntries();
203 if((entriesa + entriesb) < 5*32767) hped1->Add(hped);
204 }
205 }
206}
207//______________________________________________________________________________________
208TH2S* AliTRDCalibraExbAltFit::GetFitterHisto(Int_t detector, Bool_t force)
209{
210 //
211 // return pointer to TH2F histo
212 // if force is true create a new histo if it doesn't exist allready
213 //
214 if ( !force || fFitterHistoArray.UncheckedAt(detector) )
215 return (TH2S*)fFitterHistoArray.UncheckedAt(detector);
216
217 return GetFitterHistoForce(detector);
218
219}
220//______________________________________________________________________________________
221TH2S* AliTRDCalibraExbAltFit::GetFitterHistoForce(Int_t detector)
222{
223 //
224 // return pointer to TH2F histo
225 // if NULL create a new histo if it doesn't exist allready
226 //
227 if (fFitterHistoArray.UncheckedAt(detector))
228 return (TH2S*)fFitterHistoArray.UncheckedAt(detector);
229
230 // if we are forced and TLinearFitter doesn't yes exist create it
231
232 // new TH2F
233 TString name("LFEXB");
234 name += detector;
235 name += "version";
236 name += fVersion;
237
238 TH2S *lfdv = new TH2S((const Char_t *)name,(const Char_t *) name,
239 30, -TMath::DegToRad()*45, TMath::DegToRad()*45,
240 30, 0.3, 1.4);
241 lfdv->SetXTitle("tan(phi_{track})");
242 lfdv->SetYTitle("rms");
243 lfdv->SetZTitle("Number of tracklets");
244 lfdv->SetStats(0);
245 lfdv->SetDirectory(0);
246
247 fFitterHistoArray.AddAt(lfdv,detector);
248 return lfdv;
249}
250//______________________________________________________________________________________
251Bool_t AliTRDCalibraExbAltFit::GetParam(Int_t detector, TVectorD *param)
252{
253 //
254 // return param for this detector
255 //
256 if ( fFitterPArray.UncheckedAt(detector) ){
257 const TVectorD *vectorP = (TVectorD*)fFitterPArray.UncheckedAt(detector);
258 if(!param) param = new TVectorD(vectorP->GetNoElements());
259 for(Int_t k = 0; k < vectorP->GetNoElements(); k++){
260 (*param)[k] = (*vectorP)[k];
261 }
262 return kTRUE;
263 }
264 else return kFALSE;
265
266}
267//______________________________________________________________________________________
268Bool_t AliTRDCalibraExbAltFit::GetError(Int_t detector, TVectorD *error)
269{
270 //
271 // return error for this detector
272 //
273 if ( fFitterEArray.UncheckedAt(detector) ){
274 const TVectorD *vectorE = (TVectorD*)fFitterEArray.UncheckedAt(detector);
275 if(!error) error = new TVectorD(vectorE->GetNoElements());
276 for(Int_t k = 0; k < vectorE->GetNoElements(); k++){
277 (*error)[k] = (*vectorE)[k];
278 }
279 return kTRUE;
280 }
281 else return kFALSE;
282
283}
284//______________________________________________________________________________________
285void AliTRDCalibraExbAltFit::Update(Int_t detector, Float_t tnp, Float_t pars1)
286{
287 //
288 // Fill the 2D histos for debugging
289 //
290
291 TH2S *h = ((TH2S *) GetFitterHisto(detector,kTRUE));
292 Double_t nbentries = h->GetEntries();
293 if(nbentries < 5*32767) h->Fill(tnp,pars1);
294
295}
296//____________Functions fit Online CH2d________________________________________
297void AliTRDCalibraExbAltFit::FillPEArray()
298{
299 //
300 // Fill fFitterPArray and fFitterEArray from inside
301 //
302
303
304 Int_t *arrayI = new Int_t[540];
305 for(Int_t k = 0; k< 540; k++){
306 arrayI[k] = 0;
307 }
308
309 // Loop over histos
310 for(Int_t cb = 0; cb < 540; cb++){
311 const TH2S *fitterhisto = (TH2S*)fFitterHistoArray.UncheckedAt(cb);
312 //printf("Processing the detector cb %d we find %d\n",cb, (Bool_t) fitterhisto);
313
314 if ( fitterhisto != 0 ){
315
316 // Fill a fitter
317 TAxis *xaxis = fitterhisto->GetXaxis();
318 TAxis *yaxis = fitterhisto->GetYaxis();
319 TLinearFitter fitter = TLinearFitter(3,"pol2");
320 //printf("test\n");
321 Double_t integral = fitterhisto->Integral();
322 //printf("Integral is %f\n",integral);
323 Bool_t securitybreaking = kFALSE;
324 if(TMath::Abs(integral-1199) < 0.00001) securitybreaking = kTRUE;
325 for(Int_t ibinx = 0; ibinx < fitterhisto->GetNbinsX(); ibinx++){
326 for(Int_t ibiny = 0; ibiny < fitterhisto->GetNbinsY(); ibiny++){
327 if(fitterhisto->GetBinContent(ibinx+1,ibiny+1)>0){
328 Double_t x = xaxis->GetBinCenter(ibinx+1);
329 Double_t y = yaxis->GetBinCenter(ibiny+1);
330
331 for(Int_t k = 0; k < (Int_t)fitterhisto->GetBinContent(ibinx+1,ibiny+1); k++){
332 if(!securitybreaking){
333 fitter.AddPoint(&x,y);
334 arrayI[cb]++;
335 }
336 else {
337 if(arrayI[cb]< 1198){
338 fitter.AddPoint(&x,y);
339 arrayI[cb]++;
340 }
341 }
342 }
343
344 }
345 }
346 }
347
348 //printf("Find %d entries for the detector %d\n",arrayI[cb],cb);
349
350 // Eval the fitter
351 if(arrayI[cb]>15){
352 TVectorD *par = new TVectorD(3);
353 TVectorD pare = TVectorD(2);
354 TVectorD *parE = new TVectorD(3);
355 //printf("Fit\n");
356 if((fitter.EvalRobust(0.8)==0)) {
357 //if((fitter.Eval()==0)) {
358 //printf("Take the param\n");
359 fitter.GetParameters(*par);
360 //printf("Done\n");
361 //fitter.GetErrors(*pare);
362 //Float_t ppointError = TMath::Sqrt(TMath::Abs(fitter.GetChisquare())/arrayI[cb]);
363 //(*parE)[0] = pare[0]*ppointError;
364 //(*parE)[1] = pare[1]*ppointError;
365 (*parE)[0] = 0.0;
366 (*parE)[1] = 0.0;
367 (*parE)[2] = (Double_t) arrayI[cb];
368 fFitterPArray.AddAt(par,cb);
369 fFitterEArray.AddAt(parE,cb);
370
371 //par->Print();
372 //parE->Print();
373 }
374 //printf("Finish\n");
375 }
376
377 //delete fitterhisto;
378
379 }// if something
380
381 }
382
383 delete [] arrayI;
384
385}
386
387