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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 | ||
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 | ||
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 "AliTRDCalibraVdriftLinearFit.h" | |
42 | ||
43 | ClassImp(AliTRDCalibraVdriftLinearFit) /*FOLD00*/ | |
44 | ||
45 | //_____________________________________________________________________ | |
46 | AliTRDCalibraVdriftLinearFit::AliTRDCalibraVdriftLinearFit() : /*FOLD00*/ | |
47 | TObject(), | |
48 | fVersion(0), | |
49 | fLinearFitterHistoArray(540), | |
50 | fLinearFitterPArray(540), | |
51 | fLinearFitterEArray(540) | |
52 | { | |
53 | // | |
54 | // default constructor | |
55 | // | |
56 | } | |
57 | //_____________________________________________________________________ | |
58 | AliTRDCalibraVdriftLinearFit::AliTRDCalibraVdriftLinearFit(const AliTRDCalibraVdriftLinearFit &ped) : /*FOLD00*/ | |
59 | TObject(ped), | |
60 | fVersion(ped.fVersion), | |
61 | fLinearFitterHistoArray(540), | |
62 | fLinearFitterPArray(540), | |
63 | fLinearFitterEArray(540) | |
64 | { | |
65 | // | |
66 | // copy constructor | |
67 | // | |
68 | for (Int_t idet = 0; idet < 540; idet++){ | |
69 | ||
70 | const TVectorD *vectorE = (TVectorD*)ped.fLinearFitterEArray.UncheckedAt(idet); | |
71 | const TVectorD *vectorP = (TVectorD*)ped.fLinearFitterPArray.UncheckedAt(idet); | |
72 | const TH2S *hped = (TH2S*)ped.fLinearFitterHistoArray.UncheckedAt(idet); | |
73 | ||
74 | if ( vectorE != 0x0 ) fLinearFitterEArray.AddAt(new TVectorD(*vectorE), idet); | |
75 | if ( vectorP != 0x0 ) fLinearFitterPArray.AddAt(new TVectorD(*vectorP), idet); | |
76 | if ( hped != 0x0 ){ | |
77 | TH2S *hNew = (TH2S *)hped->Clone(); | |
78 | //hNew->SetDirectory(0); | |
79 | fLinearFitterHistoArray.AddAt(hNew,idet); | |
80 | } | |
81 | } | |
82 | } | |
83 | //_____________________________________________________________________ | |
84 | AliTRDCalibraVdriftLinearFit::AliTRDCalibraVdriftLinearFit(const TObjArray &obja) : /*FOLD00*/ | |
85 | TObject(), | |
86 | fVersion(0), | |
87 | fLinearFitterHistoArray(540), | |
88 | fLinearFitterPArray(540), | |
89 | fLinearFitterEArray(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 | fLinearFitterHistoArray.AddAt(hNew,idet); | |
100 | } | |
101 | } | |
102 | } | |
103 | //_____________________________________________________________________ | |
104 | AliTRDCalibraVdriftLinearFit& AliTRDCalibraVdriftLinearFit::operator = (const AliTRDCalibraVdriftLinearFit &source) | |
105 | { | |
106 | // | |
107 | // assignment operator | |
108 | // | |
109 | if (&source == this) return *this; | |
110 | new (this) AliTRDCalibraVdriftLinearFit(source); | |
111 | ||
112 | return *this; | |
113 | } | |
114 | //_____________________________________________________________________ | |
115 | AliTRDCalibraVdriftLinearFit::~AliTRDCalibraVdriftLinearFit() /*FOLD00*/ | |
116 | { | |
117 | // | |
118 | // destructor | |
119 | // | |
120 | fLinearFitterHistoArray.Delete(); | |
121 | fLinearFitterPArray.Delete(); | |
122 | fLinearFitterEArray.Delete(); | |
123 | ||
124 | } | |
125 | //_____________________________________________________________________________ | |
126 | void AliTRDCalibraVdriftLinearFit::Copy(TObject &c) const | |
127 | { | |
128 | // | |
129 | // Copy function | |
130 | // | |
131 | ||
132 | AliTRDCalibraVdriftLinearFit& target = (AliTRDCalibraVdriftLinearFit &) c; | |
133 | ||
134 | // Copy only the histos | |
135 | for (Int_t idet = 0; idet < 540; idet++){ | |
136 | if(fLinearFitterHistoArray.UncheckedAt(idet)){ | |
137 | TH2S *hped1 = (TH2S *)target.GetLinearFitterHisto(idet,kTRUE); | |
138 | //hped1->SetDirectory(0); | |
139 | hped1->Add((const TH2S *)fLinearFitterHistoArray.UncheckedAt(idet)); | |
140 | } | |
141 | } | |
142 | ||
143 | TObject::Copy(c); | |
144 | ||
145 | } | |
146 | //_____________________________________________________________________________ | |
147 | Long64_t AliTRDCalibraVdriftLinearFit::Merge(const TCollection* list) | |
148 | { | |
149 | // Merge list of objects (needed by PROOF) | |
150 | ||
151 | if (!list) | |
152 | return 0; | |
153 | ||
154 | if (list->IsEmpty()) | |
155 | return 1; | |
156 | ||
157 | TIterator* iter = list->MakeIterator(); | |
158 | TObject* obj = 0; | |
159 | ||
160 | // collection of generated histograms | |
161 | Int_t count=0; | |
162 | while((obj = iter->Next()) != 0) | |
163 | { | |
164 | AliTRDCalibraVdriftLinearFit* entry = dynamic_cast<AliTRDCalibraVdriftLinearFit*>(obj); | |
165 | if (entry == 0) continue; | |
166 | ||
167 | // Copy only the histos | |
168 | for (Int_t idet = 0; idet < 540; idet++){ | |
169 | if(entry->GetLinearFitterHisto(idet)){ | |
170 | TH2S *hped1 = (TH2S *)GetLinearFitterHisto(idet,kTRUE); | |
171 | Double_t entriesa = hped1->GetEntries(); | |
172 | Double_t entriesb = ((TH2S *)entry->GetLinearFitterHisto(idet))->GetEntries(); | |
173 | if((entriesa + entriesb) < 5*32767) hped1->Add(entry->GetLinearFitterHisto(idet)); | |
174 | } | |
175 | } | |
176 | ||
177 | count++; | |
178 | } | |
179 | ||
180 | return count; | |
181 | } | |
182 | //_____________________________________________________________________ | |
183 | void AliTRDCalibraVdriftLinearFit::Add(const AliTRDCalibraVdriftLinearFit *ped) | |
184 | { | |
185 | // | |
186 | // Add histo | |
187 | // | |
188 | ||
189 | fVersion++; | |
190 | ||
191 | for (Int_t idet = 0; idet < 540; idet++){ | |
192 | const TH2S *hped = (TH2S*)ped->GetLinearFitterHistoNoForce(idet); | |
193 | //printf("idet %d\n",idet); | |
194 | if ( hped != 0x0 ){ | |
195 | //printf("add\n"); | |
196 | TH2S *hped1 = (TH2S *)GetLinearFitterHisto(idet,kTRUE); | |
197 | Double_t entriesa = hped1->GetEntries(); | |
198 | Double_t entriesb = hped->GetEntries(); | |
199 | if((entriesa + entriesb) < 5*32767) hped1->Add(hped); | |
200 | } | |
201 | } | |
202 | } | |
203 | //______________________________________________________________________________________ | |
204 | TH2S* AliTRDCalibraVdriftLinearFit::GetLinearFitterHisto(Int_t detector, Bool_t force) | |
205 | { | |
206 | // | |
207 | // return pointer to TH2F histo | |
208 | // if force is true create a new histo if it doesn't exist allready | |
209 | // | |
210 | if ( !force || fLinearFitterHistoArray.UncheckedAt(detector) ) | |
211 | return (TH2S*)fLinearFitterHistoArray.UncheckedAt(detector); | |
212 | ||
213 | return GetLinearFitterHistoForce(detector); | |
214 | ||
215 | } | |
216 | //______________________________________________________________________________________ | |
217 | TH2S* AliTRDCalibraVdriftLinearFit::GetLinearFitterHistoForce(Int_t detector) | |
218 | { | |
219 | // | |
220 | // return pointer to TH2F histo | |
221 | // if NULL create a new histo if it doesn't exist allready | |
222 | // | |
223 | if (fLinearFitterHistoArray.UncheckedAt(detector)) | |
224 | return (TH2S*)fLinearFitterHistoArray.UncheckedAt(detector); | |
225 | ||
226 | // if we are forced and TLinearFitter doesn't yes exist create it | |
227 | ||
228 | // new TH2F | |
229 | TString name("LFDV"); | |
230 | name += detector; | |
231 | name += "version"; | |
232 | name += fVersion; | |
233 | ||
234 | TH2S *lfdv = new TH2S((const Char_t *)name,(const Char_t *) name | |
235 | ,36,-0.9,0.9,48 | |
236 | ,-1.2,1.2); | |
237 | lfdv->SetXTitle("tan(phi_{track})"); | |
238 | lfdv->SetYTitle("dy/dt"); | |
239 | lfdv->SetZTitle("Number of clusters"); | |
240 | lfdv->SetStats(0); | |
241 | lfdv->SetDirectory(0); | |
242 | ||
243 | fLinearFitterHistoArray.AddAt(lfdv,detector); | |
244 | return lfdv; | |
245 | } | |
246 | //______________________________________________________________________________________ | |
247 | Bool_t AliTRDCalibraVdriftLinearFit::GetParam(Int_t detector, TVectorD *param) | |
248 | { | |
249 | // | |
250 | // return param for this detector | |
251 | // | |
252 | if ( fLinearFitterPArray.UncheckedAt(detector) ){ | |
253 | const TVectorD *vectorP = (TVectorD*)fLinearFitterPArray.UncheckedAt(detector); | |
254 | if(!param) param = new TVectorD(2); | |
255 | for(Int_t k = 0; k < 2; k++){ | |
256 | (*param)[k] = (*vectorP)[k]; | |
257 | } | |
258 | return kTRUE; | |
259 | } | |
260 | else return kFALSE; | |
261 | ||
262 | } | |
263 | //______________________________________________________________________________________ | |
264 | Bool_t AliTRDCalibraVdriftLinearFit::GetError(Int_t detector, TVectorD *error) | |
265 | { | |
266 | // | |
267 | // return error for this detector | |
268 | // | |
269 | if ( fLinearFitterEArray.UncheckedAt(detector) ){ | |
270 | const TVectorD *vectorE = (TVectorD*)fLinearFitterEArray.UncheckedAt(detector); | |
271 | if(!error) error = new TVectorD(3); | |
272 | for(Int_t k = 0; k < 3; k++){ | |
273 | (*error)[k] = (*vectorE)[k]; | |
274 | } | |
275 | return kTRUE; | |
276 | } | |
277 | else return kFALSE; | |
278 | ||
279 | } | |
280 | //______________________________________________________________________________________ | |
281 | void AliTRDCalibraVdriftLinearFit::Update(Int_t detector, Float_t tnp, Float_t pars1) | |
282 | { | |
283 | // | |
284 | // Fill the 2D histos for debugging | |
285 | // | |
286 | ||
287 | TH2S *h = ((TH2S *) GetLinearFitterHisto(detector,kTRUE)); | |
288 | Double_t nbentries = h->GetEntries(); | |
289 | if(nbentries < 5*32767) h->Fill(tnp,pars1); | |
290 | ||
291 | } | |
292 | //____________Functions fit Online CH2d________________________________________ | |
293 | void AliTRDCalibraVdriftLinearFit::FillPEArray() | |
294 | { | |
295 | // | |
296 | // Fill fLinearFitterPArray and fLinearFitterEArray from inside | |
297 | // | |
298 | ||
299 | ||
300 | Int_t *arrayI = new Int_t[540]; | |
301 | for(Int_t k = 0; k< 540; k++){ | |
302 | arrayI[k] = 0; | |
303 | } | |
304 | ||
305 | // Loop over histos | |
306 | for(Int_t cb = 0; cb < 540; cb++){ | |
307 | const TH2S *linearfitterhisto = (TH2S*)fLinearFitterHistoArray.UncheckedAt(cb); | |
308 | //printf("Processing the detector cb %d we find %d\n",cb, (Bool_t) linearfitterhisto); | |
309 | ||
310 | if ( linearfitterhisto != 0 ){ | |
311 | ||
312 | // Fill a linearfitter | |
313 | TAxis *xaxis = linearfitterhisto->GetXaxis(); | |
314 | TAxis *yaxis = linearfitterhisto->GetYaxis(); | |
315 | TLinearFitter linearfitter = TLinearFitter(2,"pol1"); | |
316 | //printf("test\n"); | |
317 | for(Int_t ibinx = 0; ibinx < linearfitterhisto->GetNbinsX(); ibinx++){ | |
318 | for(Int_t ibiny = 0; ibiny < linearfitterhisto->GetNbinsY(); ibiny++){ | |
319 | if(linearfitterhisto->GetBinContent(ibinx+1,ibiny+1)>0){ | |
320 | Double_t x = xaxis->GetBinCenter(ibinx+1); | |
321 | Double_t y = yaxis->GetBinCenter(ibiny+1); | |
322 | for(Int_t k = 0; k < (Int_t)linearfitterhisto->GetBinContent(ibinx+1,ibiny+1); k++){ | |
323 | linearfitter.AddPoint(&x,y); | |
324 | arrayI[cb]++; | |
325 | } | |
326 | } | |
327 | } | |
328 | } | |
329 | ||
330 | //printf("Find %d entries for the detector %d\n",arrayI[cb],cb); | |
331 | ||
332 | // Eval the linear fitter | |
333 | if(arrayI[cb]>10){ | |
334 | TVectorD *par = new TVectorD(2); | |
335 | TVectorD pare = TVectorD(2); | |
336 | TVectorD *parE = new TVectorD(3); | |
337 | linearfitter.Eval(); | |
338 | linearfitter.GetParameters(*par); | |
339 | linearfitter.GetErrors(pare); | |
340 | Float_t ppointError = TMath::Sqrt(TMath::Abs(linearfitter.GetChisquare())/arrayI[cb]); | |
341 | (*parE)[0] = pare[0]*ppointError; | |
342 | (*parE)[1] = pare[1]*ppointError; | |
343 | (*parE)[2] = (Double_t) arrayI[cb]; | |
344 | fLinearFitterPArray.AddAt(par,cb); | |
345 | fLinearFitterEArray.AddAt(parE,cb); | |
346 | //par->Print(); | |
347 | //parE->Print(); | |
348 | } | |
349 | ||
350 | //delete linearfitterhisto; | |
351 | ||
352 | }// if something | |
353 | } | |
354 | ||
355 | } |