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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> | |
37 | #include <TTreeStream.h> | |
38 | ||
39 | //header file | |
40 | #include "AliTRDCalibraVdriftLinearFit.h" | |
41 | ||
42 | ClassImp(AliTRDCalibraVdriftLinearFit) /*FOLD00*/ | |
43 | ||
44 | //_____________________________________________________________________ | |
45 | AliTRDCalibraVdriftLinearFit::AliTRDCalibraVdriftLinearFit() : /*FOLD00*/ | |
46 | TObject(), | |
47 | fVersion(0), | |
48 | fLinearFitterHistoArray(540), | |
49 | fLinearFitterPArray(540), | |
50 | fLinearFitterEArray(540) | |
51 | { | |
52 | // | |
53 | // default constructor | |
54 | // | |
55 | } | |
3a0f6479 | 56 | //_____________________________________________________________________ |
57 | AliTRDCalibraVdriftLinearFit::AliTRDCalibraVdriftLinearFit(const AliTRDCalibraVdriftLinearFit &ped) : /*FOLD00*/ | |
58 | TObject(ped), | |
59 | fVersion(ped.fVersion), | |
60 | fLinearFitterHistoArray(540), | |
61 | fLinearFitterPArray(540), | |
62 | fLinearFitterEArray(540) | |
63 | { | |
64 | // | |
65 | // copy constructor | |
66 | // | |
67 | for (Int_t idet = 0; idet < 540; idet++){ | |
68 | const TVectorD *vectorE = (TVectorD*)ped.fLinearFitterEArray.UncheckedAt(idet); | |
69 | const TVectorD *vectorP = (TVectorD*)ped.fLinearFitterPArray.UncheckedAt(idet); | |
70 | const TH2F *hped = (TH2F*)ped.fLinearFitterHistoArray.UncheckedAt(idet); | |
71 | ||
72 | if ( vectorE != 0x0 ) fLinearFitterEArray.AddAt(new TVectorD(*vectorE), idet); | |
73 | if ( vectorP != 0x0 ) fLinearFitterPArray.AddAt(new TVectorD(*vectorP), idet); | |
74 | if ( hped != 0x0 ){ | |
75 | TH2F *hNew = new TH2F(*hped); | |
76 | hNew->SetDirectory(0); | |
77 | fLinearFitterHistoArray.AddAt(hNew,idet); | |
78 | } | |
79 | ||
80 | } | |
81 | } | |
82 | //_____________________________________________________________________ | |
d0569428 | 83 | AliTRDCalibraVdriftLinearFit::AliTRDCalibraVdriftLinearFit(const TObjArray &obja) : /*FOLD00*/ |
84 | TObject(), | |
85 | fVersion(0), | |
86 | fLinearFitterHistoArray(540), | |
87 | fLinearFitterPArray(540), | |
88 | fLinearFitterEArray(540) | |
89 | { | |
90 | // | |
91 | // constructor from a TObjArray | |
92 | // | |
93 | for (Int_t idet = 0; idet < 540; idet++){ | |
94 | const TH2F *hped = (TH2F*)obja.UncheckedAt(idet); | |
95 | if ( hped != 0x0 ){ | |
96 | TH2F *hNew = new TH2F(*hped); | |
97 | hNew->SetDirectory(0); | |
98 | fLinearFitterHistoArray.AddAt(hNew,idet); | |
99 | } | |
100 | } | |
101 | } | |
102 | //_____________________________________________________________________ | |
3a0f6479 | 103 | AliTRDCalibraVdriftLinearFit& AliTRDCalibraVdriftLinearFit::operator = (const AliTRDCalibraVdriftLinearFit &source) |
104 | { | |
105 | // | |
106 | // assignment operator | |
107 | // | |
108 | if (&source == this) return *this; | |
109 | new (this) AliTRDCalibraVdriftLinearFit(source); | |
110 | ||
111 | return *this; | |
112 | } | |
113 | //_____________________________________________________________________ | |
114 | AliTRDCalibraVdriftLinearFit::~AliTRDCalibraVdriftLinearFit() /*FOLD00*/ | |
115 | { | |
116 | // | |
117 | // destructor | |
118 | // | |
1ca79a00 | 119 | fLinearFitterHistoArray.Delete(); |
120 | fLinearFitterPArray.Delete(); | |
121 | fLinearFitterEArray.Delete(); | |
122 | ||
3a0f6479 | 123 | } |
64942b85 | 124 | //_____________________________________________________________________________ |
125 | void AliTRDCalibraVdriftLinearFit::Copy(TObject &c) const | |
126 | { | |
127 | // | |
128 | // Copy function | |
129 | // | |
130 | ||
131 | AliTRDCalibraVdriftLinearFit& target = (AliTRDCalibraVdriftLinearFit &) c; | |
132 | ||
133 | // Copy only the histos | |
134 | for (Int_t idet = 0; idet < 540; idet++){ | |
135 | if(fLinearFitterHistoArray.UncheckedAt(idet)){ | |
136 | TH2F *hped1 = target.GetLinearFitterHisto(idet,kTRUE); | |
137 | hped1->SetDirectory(0); | |
138 | hped1->Add((const TH1F *)fLinearFitterHistoArray.UncheckedAt(idet)); | |
139 | } | |
140 | ||
141 | } | |
142 | ||
143 | TObject::Copy(c); | |
144 | ||
145 | } | |
146 | //_____________________________________________________________________________ | |
147 | Long64_t AliTRDCalibraVdriftLinearFit::Merge(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 | TH2F *hped1 = GetLinearFitterHisto(idet,kTRUE); | |
171 | hped1->SetDirectory(0); | |
172 | hped1->Add(entry->GetLinearFitterHisto(idet)); | |
173 | } | |
174 | ||
175 | } | |
176 | ||
177 | count++; | |
178 | } | |
179 | ||
180 | return count; | |
181 | } | |
3a0f6479 | 182 | //_____________________________________________________________________ |
183 | void AliTRDCalibraVdriftLinearFit::Add(AliTRDCalibraVdriftLinearFit *ped) | |
184 | { | |
185 | // | |
186 | // Add histo | |
187 | // | |
188 | ||
189 | fVersion++; | |
190 | ||
191 | for (Int_t idet = 0; idet < 540; idet++){ | |
192 | const TH2F *hped = (TH2F*)ped->GetLinearFitterHisto(idet); | |
193 | //printf("idet %d\n",idet); | |
194 | if ( hped != 0x0 ){ | |
195 | //printf("add\n"); | |
196 | TH2F *hped1 = GetLinearFitterHisto(idet,kTRUE); | |
197 | //printf("test2\n"); | |
198 | hped1->SetDirectory(0); | |
199 | //printf("test4\n"); | |
200 | hped1->Add(hped); | |
201 | //printf("test3\n"); | |
202 | } | |
203 | } | |
204 | } | |
205 | //______________________________________________________________________________________ | |
206 | TH2F* AliTRDCalibraVdriftLinearFit::GetLinearFitterHisto(Int_t detector, Bool_t force) | |
207 | { | |
208 | // | |
209 | // return pointer to TH2F histo | |
210 | // if force is true create a new histo if it doesn't exist allready | |
211 | // | |
212 | if ( !force || fLinearFitterHistoArray.UncheckedAt(detector) ) | |
213 | return (TH2F*)fLinearFitterHistoArray.UncheckedAt(detector); | |
214 | ||
215 | // if we are forced and TLinearFitter doesn't yes exist create it | |
216 | ||
217 | // new TH2F | |
218 | TString name("LFDV"); | |
219 | name += detector; | |
220 | name += "version"; | |
221 | name += fVersion; | |
222 | ||
223 | TH2F *lfdv = new TH2F((const Char_t *)name,(const Char_t *) name | |
224 | ,100,-1.0,1.0,100 | |
225 | ,-2.0,2.0); | |
226 | lfdv->SetXTitle("tan(phi_{track})"); | |
227 | lfdv->SetYTitle("dy/dt"); | |
228 | lfdv->SetZTitle("Number of clusters"); | |
229 | lfdv->SetStats(0); | |
230 | lfdv->SetDirectory(0); | |
231 | ||
232 | fLinearFitterHistoArray.AddAt(lfdv,detector); | |
233 | return lfdv; | |
234 | } | |
235 | //______________________________________________________________________________________ | |
236 | Bool_t AliTRDCalibraVdriftLinearFit::GetParam(Int_t detector, TVectorD *param) | |
237 | { | |
238 | // | |
239 | // return param for this detector | |
240 | // | |
241 | if ( fLinearFitterPArray.UncheckedAt(detector) ){ | |
242 | const TVectorD *vectorP = (TVectorD*)fLinearFitterPArray.UncheckedAt(detector); | |
243 | if(!param) param = new TVectorD(2); | |
244 | for(Int_t k = 0; k < 2; k++){ | |
245 | (*param)[k] = (*vectorP)[k]; | |
246 | } | |
247 | return kTRUE; | |
248 | } | |
249 | else return kFALSE; | |
250 | ||
251 | } | |
252 | //______________________________________________________________________________________ | |
253 | Bool_t AliTRDCalibraVdriftLinearFit::GetError(Int_t detector, TVectorD *error) | |
254 | { | |
255 | // | |
256 | // return error for this detector | |
257 | // | |
258 | if ( fLinearFitterEArray.UncheckedAt(detector) ){ | |
259 | const TVectorD *vectorE = (TVectorD*)fLinearFitterEArray.UncheckedAt(detector); | |
260 | if(!error) error = new TVectorD(3); | |
261 | for(Int_t k = 0; k < 3; k++){ | |
262 | (*error)[k] = (*vectorE)[k]; | |
263 | } | |
264 | return kTRUE; | |
265 | } | |
266 | else return kFALSE; | |
267 | ||
268 | } | |
269 | //______________________________________________________________________________________ | |
270 | void AliTRDCalibraVdriftLinearFit::Update(Int_t detector, Float_t tnp, Float_t pars1) | |
271 | { | |
272 | // | |
273 | // Fill the 2D histos for debugging | |
274 | // | |
275 | ||
276 | ((TH2F *) GetLinearFitterHisto(detector,kTRUE))->Fill(tnp,pars1); | |
277 | ||
278 | } | |
279 | //____________Functions fit Online CH2d________________________________________ | |
280 | void AliTRDCalibraVdriftLinearFit::FillPEArray() | |
281 | { | |
282 | // | |
283 | // Fill fLinearFitterPArray and fLinearFitterEArray from inside | |
284 | // | |
285 | ||
286 | ||
287 | Int_t *arrayI = new Int_t[540]; | |
288 | for(Int_t k = 0; k< 540; k++){ | |
289 | arrayI[k] = 0; | |
290 | } | |
291 | ||
292 | // Loop over histos | |
293 | for(Int_t cb = 0; cb < 540; cb++){ | |
294 | const TH2F *linearfitterhisto = (TH2F*)fLinearFitterHistoArray.UncheckedAt(cb); | |
295 | //printf("Processing the detector cb %d we find %d\n",cb, (Bool_t) linearfitterhisto); | |
296 | ||
297 | if ( linearfitterhisto != 0 ){ | |
298 | ||
299 | // Fill a linearfitter | |
300 | TAxis *xaxis = linearfitterhisto->GetXaxis(); | |
301 | TAxis *yaxis = linearfitterhisto->GetYaxis(); | |
302 | TLinearFitter linearfitter = TLinearFitter(2,"pol1"); | |
303 | //printf("test\n"); | |
304 | for(Int_t ibinx = 0; ibinx < linearfitterhisto->GetNbinsX(); ibinx++){ | |
305 | for(Int_t ibiny = 0; ibiny < linearfitterhisto->GetNbinsY(); ibiny++){ | |
306 | if(linearfitterhisto->GetBinContent(ibinx+1,ibiny+1)>0){ | |
307 | Double_t x = xaxis->GetBinCenter(ibinx+1); | |
308 | Double_t y = yaxis->GetBinCenter(ibiny+1); | |
309 | for(Int_t k = 0; k < (Int_t)linearfitterhisto->GetBinContent(ibinx+1,ibiny+1); k++){ | |
310 | linearfitter.AddPoint(&x,y); | |
311 | arrayI[cb]++; | |
312 | } | |
313 | } | |
314 | } | |
315 | } | |
316 | ||
317 | //printf("Find %d entries for the detector %d\n",arrayI[cb],cb); | |
318 | ||
319 | // Eval the linear fitter | |
320 | if(arrayI[cb]>10){ | |
321 | TVectorD *par = new TVectorD(2); | |
322 | TVectorD pare = TVectorD(2); | |
323 | TVectorD *parE = new TVectorD(3); | |
324 | linearfitter.Eval(); | |
325 | linearfitter.GetParameters(*par); | |
326 | linearfitter.GetErrors(pare); | |
327 | Float_t ppointError = TMath::Sqrt(TMath::Abs(linearfitter.GetChisquare())/arrayI[cb]); | |
328 | (*parE)[0] = pare[0]*ppointError; | |
329 | (*parE)[1] = pare[1]*ppointError; | |
330 | (*parE)[2] = (Double_t) arrayI[cb]; | |
331 | fLinearFitterPArray.AddAt(par,cb); | |
332 | fLinearFitterEArray.AddAt(parE,cb); | |
333 | //par->Print(); | |
334 | //parE->Print(); | |
335 | } | |
336 | }// if something | |
337 | } | |
338 | ||
339 | } |