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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 | // | |
119 | } | |
120 | //_____________________________________________________________________ | |
121 | void AliTRDCalibraVdriftLinearFit::Add(AliTRDCalibraVdriftLinearFit *ped) | |
122 | { | |
123 | // | |
124 | // Add histo | |
125 | // | |
126 | ||
127 | fVersion++; | |
128 | ||
129 | for (Int_t idet = 0; idet < 540; idet++){ | |
130 | const TH2F *hped = (TH2F*)ped->GetLinearFitterHisto(idet); | |
131 | //printf("idet %d\n",idet); | |
132 | if ( hped != 0x0 ){ | |
133 | //printf("add\n"); | |
134 | TH2F *hped1 = GetLinearFitterHisto(idet,kTRUE); | |
135 | //printf("test2\n"); | |
136 | hped1->SetDirectory(0); | |
137 | //printf("test4\n"); | |
138 | hped1->Add(hped); | |
139 | //printf("test3\n"); | |
140 | } | |
141 | } | |
142 | } | |
143 | //______________________________________________________________________________________ | |
144 | TH2F* AliTRDCalibraVdriftLinearFit::GetLinearFitterHisto(Int_t detector, Bool_t force) | |
145 | { | |
146 | // | |
147 | // return pointer to TH2F histo | |
148 | // if force is true create a new histo if it doesn't exist allready | |
149 | // | |
150 | if ( !force || fLinearFitterHistoArray.UncheckedAt(detector) ) | |
151 | return (TH2F*)fLinearFitterHistoArray.UncheckedAt(detector); | |
152 | ||
153 | // if we are forced and TLinearFitter doesn't yes exist create it | |
154 | ||
155 | // new TH2F | |
156 | TString name("LFDV"); | |
157 | name += detector; | |
158 | name += "version"; | |
159 | name += fVersion; | |
160 | ||
161 | TH2F *lfdv = new TH2F((const Char_t *)name,(const Char_t *) name | |
162 | ,100,-1.0,1.0,100 | |
163 | ,-2.0,2.0); | |
164 | lfdv->SetXTitle("tan(phi_{track})"); | |
165 | lfdv->SetYTitle("dy/dt"); | |
166 | lfdv->SetZTitle("Number of clusters"); | |
167 | lfdv->SetStats(0); | |
168 | lfdv->SetDirectory(0); | |
169 | ||
170 | fLinearFitterHistoArray.AddAt(lfdv,detector); | |
171 | return lfdv; | |
172 | } | |
173 | //______________________________________________________________________________________ | |
174 | Bool_t AliTRDCalibraVdriftLinearFit::GetParam(Int_t detector, TVectorD *param) | |
175 | { | |
176 | // | |
177 | // return param for this detector | |
178 | // | |
179 | if ( fLinearFitterPArray.UncheckedAt(detector) ){ | |
180 | const TVectorD *vectorP = (TVectorD*)fLinearFitterPArray.UncheckedAt(detector); | |
181 | if(!param) param = new TVectorD(2); | |
182 | for(Int_t k = 0; k < 2; k++){ | |
183 | (*param)[k] = (*vectorP)[k]; | |
184 | } | |
185 | return kTRUE; | |
186 | } | |
187 | else return kFALSE; | |
188 | ||
189 | } | |
190 | //______________________________________________________________________________________ | |
191 | Bool_t AliTRDCalibraVdriftLinearFit::GetError(Int_t detector, TVectorD *error) | |
192 | { | |
193 | // | |
194 | // return error for this detector | |
195 | // | |
196 | if ( fLinearFitterEArray.UncheckedAt(detector) ){ | |
197 | const TVectorD *vectorE = (TVectorD*)fLinearFitterEArray.UncheckedAt(detector); | |
198 | if(!error) error = new TVectorD(3); | |
199 | for(Int_t k = 0; k < 3; k++){ | |
200 | (*error)[k] = (*vectorE)[k]; | |
201 | } | |
202 | return kTRUE; | |
203 | } | |
204 | else return kFALSE; | |
205 | ||
206 | } | |
207 | //______________________________________________________________________________________ | |
208 | void AliTRDCalibraVdriftLinearFit::Update(Int_t detector, Float_t tnp, Float_t pars1) | |
209 | { | |
210 | // | |
211 | // Fill the 2D histos for debugging | |
212 | // | |
213 | ||
214 | ((TH2F *) GetLinearFitterHisto(detector,kTRUE))->Fill(tnp,pars1); | |
215 | ||
216 | } | |
217 | //____________Functions fit Online CH2d________________________________________ | |
218 | void AliTRDCalibraVdriftLinearFit::FillPEArray() | |
219 | { | |
220 | // | |
221 | // Fill fLinearFitterPArray and fLinearFitterEArray from inside | |
222 | // | |
223 | ||
224 | ||
225 | Int_t *arrayI = new Int_t[540]; | |
226 | for(Int_t k = 0; k< 540; k++){ | |
227 | arrayI[k] = 0; | |
228 | } | |
229 | ||
230 | // Loop over histos | |
231 | for(Int_t cb = 0; cb < 540; cb++){ | |
232 | const TH2F *linearfitterhisto = (TH2F*)fLinearFitterHistoArray.UncheckedAt(cb); | |
233 | //printf("Processing the detector cb %d we find %d\n",cb, (Bool_t) linearfitterhisto); | |
234 | ||
235 | if ( linearfitterhisto != 0 ){ | |
236 | ||
237 | // Fill a linearfitter | |
238 | TAxis *xaxis = linearfitterhisto->GetXaxis(); | |
239 | TAxis *yaxis = linearfitterhisto->GetYaxis(); | |
240 | TLinearFitter linearfitter = TLinearFitter(2,"pol1"); | |
241 | //printf("test\n"); | |
242 | for(Int_t ibinx = 0; ibinx < linearfitterhisto->GetNbinsX(); ibinx++){ | |
243 | for(Int_t ibiny = 0; ibiny < linearfitterhisto->GetNbinsY(); ibiny++){ | |
244 | if(linearfitterhisto->GetBinContent(ibinx+1,ibiny+1)>0){ | |
245 | Double_t x = xaxis->GetBinCenter(ibinx+1); | |
246 | Double_t y = yaxis->GetBinCenter(ibiny+1); | |
247 | for(Int_t k = 0; k < (Int_t)linearfitterhisto->GetBinContent(ibinx+1,ibiny+1); k++){ | |
248 | linearfitter.AddPoint(&x,y); | |
249 | arrayI[cb]++; | |
250 | } | |
251 | } | |
252 | } | |
253 | } | |
254 | ||
255 | //printf("Find %d entries for the detector %d\n",arrayI[cb],cb); | |
256 | ||
257 | // Eval the linear fitter | |
258 | if(arrayI[cb]>10){ | |
259 | TVectorD *par = new TVectorD(2); | |
260 | TVectorD pare = TVectorD(2); | |
261 | TVectorD *parE = new TVectorD(3); | |
262 | linearfitter.Eval(); | |
263 | linearfitter.GetParameters(*par); | |
264 | linearfitter.GetErrors(pare); | |
265 | Float_t ppointError = TMath::Sqrt(TMath::Abs(linearfitter.GetChisquare())/arrayI[cb]); | |
266 | (*parE)[0] = pare[0]*ppointError; | |
267 | (*parE)[1] = pare[1]*ppointError; | |
268 | (*parE)[2] = (Double_t) arrayI[cb]; | |
269 | fLinearFitterPArray.AddAt(par,cb); | |
270 | fLinearFitterEArray.AddAt(parE,cb); | |
271 | //par->Print(); | |
272 | //parE->Print(); | |
273 | } | |
274 | }// if something | |
275 | } | |
276 | ||
277 | } |