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29771dc8 | 1 | /* $Id$ */ |
2 | ||
3 | // ------------------------------------------------------ | |
4 | // | |
5 | // Class to handle corrections. | |
6 | // | |
7 | // ------------------------------------------------------ | |
8 | // | |
9 | ||
10 | #include <TFile.h> | |
11 | #include <TCanvas.h> | |
12 | #include <TH2F.h> | |
13 | ||
14 | #include <AliLog.h> | |
15 | #include "AliCorrectionMatrix2D.h" | |
16 | #include "AliCorrectionMatrix3D.h" | |
17 | ||
18 | #include "AliCorrection.h" | |
19 | ||
20 | //____________________________________________________________________ | |
21 | ClassImp(AliCorrection) | |
22 | ||
23 | //____________________________________________________________________ | |
24 | AliCorrection::AliCorrection() : TNamed(), | |
25 | fEventCorr(0), | |
26 | fTrackCorr(0) | |
27 | { | |
28 | // default constructor | |
29 | } | |
30 | ||
31 | //____________________________________________________________________ | |
32 | AliCorrection::AliCorrection(const Char_t* name, const Char_t* title) : TNamed(name, title), | |
33 | fEventCorr(0), | |
34 | fTrackCorr(0) | |
35 | { | |
36 | // constructor initializing tnamed | |
37 | ||
38 | Float_t binLimitsPt[] = {0.0, 0.05, 0.1, 0.125, 0.15, 0.175, 0.2, 0.225, 0.25, 0.275, 0.3, 0.325, 0.35, 0.375, 0.4, 0.425, 0.45, 0.475, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.5, 2.0, 5.0, 10.0, 100.0}; | |
39 | Float_t binLimitsN[] = {-0.5, 0.5, 1.5, 2.5, 3.5, 4.5, 5.5, 6.5, 7.5, 8.5, 9.5, 10.5, 12.5, 14.5, 16.5, 18.5, 20.5, 25.5, 30.5, 40.5, 50.5, 100.5, 300.5}; | |
40 | //Float_t binLimitsVtx[] = {-20,-15,-10,-6,-3,0,3,6,10,15,20}; | |
083a636e | 41 | //Float_t binLimitsVtx[] = {-20,-19,-18,-17,-16,-15,-14,-13,-12,-11,-10,-9,-8,-7,-6,-5,-4,-3,-2,-1,0,1,2,3,4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20}; |
42 | Float_t binLimitsVtx[] = {-20,-15,-10,-8,-6,-4,-2,0,2,4,6,8,10,15,20}; | |
29771dc8 | 43 | |
083a636e | 44 | fEventCorr = new AliCorrectionMatrix2D("EventCorrection", Form("%s EventCorrection", title), 14, binLimitsVtx, 22, binLimitsN); |
45 | fTrackCorr = new AliCorrectionMatrix3D("TrackCorrection", Form("%s TrackCorrection", title), 14, binLimitsVtx, 40, -2, 2, 28, binLimitsPt); | |
29771dc8 | 46 | |
47 | fEventCorr->SetAxisTitles("vtx z [cm]", "Ntracks"); | |
48 | fTrackCorr->SetAxisTitles("vtx z [cm]", "#eta", "p_{T} [GeV/c]"); | |
49 | } | |
50 | ||
51 | //____________________________________________________________________ | |
52 | AliCorrection::AliCorrection(const AliCorrection& c) : TNamed(c), | |
53 | fEventCorr(0), | |
54 | fTrackCorr(0) | |
55 | { | |
56 | // copy constructor | |
57 | ((AliCorrection &)c).Copy(*this); | |
58 | } | |
59 | ||
60 | //____________________________________________________________________ | |
61 | AliCorrection::~AliCorrection() | |
62 | { | |
63 | // | |
64 | // destructor | |
65 | // | |
66 | ||
67 | if (fEventCorr) | |
68 | { | |
69 | delete fEventCorr; | |
70 | fEventCorr = 0; | |
71 | } | |
72 | ||
73 | if (fTrackCorr) | |
74 | { | |
75 | delete fTrackCorr; | |
76 | fTrackCorr = 0; | |
77 | } | |
78 | } | |
79 | ||
80 | //____________________________________________________________________ | |
81 | AliCorrection &AliCorrection::operator=(const AliCorrection &c) | |
82 | { | |
83 | // assigment operator | |
84 | ||
85 | if (this != &c) | |
86 | ((AliCorrection &) c).Copy(*this); | |
87 | ||
88 | return *this; | |
89 | } | |
90 | ||
91 | //____________________________________________________________________ | |
92 | void AliCorrection::Copy(TObject& c) const | |
93 | { | |
94 | // copy function | |
95 | ||
96 | AliCorrection& target = (AliCorrection &) c; | |
97 | ||
98 | if (fEventCorr) | |
99 | target.fEventCorr = dynamic_cast<AliCorrectionMatrix2D*> (fEventCorr->Clone()); | |
100 | ||
101 | if (fTrackCorr) | |
102 | target.fTrackCorr = dynamic_cast<AliCorrectionMatrix3D*> (fTrackCorr->Clone()); | |
103 | } | |
104 | ||
105 | //____________________________________________________________________ | |
106 | Long64_t AliCorrection::Merge(TCollection* list) | |
107 | { | |
108 | // Merge a list of AliCorrection objects with this (needed for | |
109 | // PROOF). | |
110 | // Returns the number of merged objects (including this). | |
111 | ||
112 | if (!list) | |
113 | return 0; | |
114 | ||
115 | if (list->IsEmpty()) | |
116 | return 1; | |
117 | ||
118 | TIterator* iter = list->MakeIterator(); | |
119 | TObject* obj; | |
120 | ||
121 | // collections of measured and generated histograms | |
122 | TList* collectionEvent = new TList; | |
123 | TList* collectionTrack = new TList; | |
124 | ||
125 | Int_t count = 0; | |
126 | while ((obj = iter->Next())) { | |
127 | ||
128 | AliCorrection* entry = dynamic_cast<AliCorrection*> (obj); | |
129 | if (entry == 0) | |
130 | continue; | |
131 | ||
132 | collectionEvent->Add(entry->fEventCorr); | |
133 | collectionTrack->Add(entry->fTrackCorr); | |
134 | ||
135 | count++; | |
136 | } | |
137 | fEventCorr->Merge(collectionEvent); | |
138 | fTrackCorr->Merge(collectionTrack); | |
139 | ||
140 | delete collectionEvent; | |
141 | delete collectionTrack; | |
142 | ||
143 | return count+1; | |
144 | } | |
145 | ||
146 | //____________________________________________________________________ | |
147 | void AliCorrection::Divide() | |
148 | { | |
149 | // | |
150 | // divide the histograms to get the correction | |
151 | // | |
152 | ||
153 | if (!fEventCorr || !fTrackCorr) | |
154 | return; | |
155 | ||
156 | fEventCorr->Divide(); | |
157 | fTrackCorr->Divide(); | |
158 | ||
159 | Int_t emptyBins = fTrackCorr->CheckEmptyBins(-9.99, 9.99, -0.79, 0.79, 0.3, 9.9); | |
160 | printf("INFO: In the central region the track correction of %s has %d empty bins\n", GetName(), emptyBins); | |
161 | } | |
162 | ||
2e88424e | 163 | //____________________________________________________________________ |
164 | void AliCorrection::Add(AliCorrection* aCorrectionToAdd, Float_t c) | |
165 | { | |
166 | // | |
167 | // add to measured and generated the measured and generated of aCorrectionToAdd | |
168 | // with the weight c | |
169 | ||
170 | fEventCorr->Add(aCorrectionToAdd->GetEventCorrection(),c); | |
171 | fTrackCorr->Add(aCorrectionToAdd->GetTrackCorrection(),c); | |
172 | } | |
173 | ||
174 | ||
29771dc8 | 175 | //____________________________________________________________________ |
176 | Bool_t AliCorrection::LoadHistograms(const Char_t* dir) | |
177 | { | |
178 | // | |
179 | // loads the histograms from a file | |
180 | // if dir is empty a directory with the name of this object is taken (like in SaveHistogram) | |
181 | // | |
182 | ||
183 | if (!fEventCorr || !fTrackCorr) | |
184 | return kFALSE; | |
185 | ||
186 | if (!dir) | |
187 | dir = GetName(); | |
188 | ||
189 | if (!gDirectory->cd(dir)) | |
190 | return kFALSE; | |
191 | ||
192 | Bool_t success = fEventCorr->LoadHistograms(); | |
193 | success &= fTrackCorr->LoadHistograms(); | |
194 | ||
195 | gDirectory->cd(".."); | |
196 | ||
197 | return success; | |
198 | } | |
199 | ||
200 | //____________________________________________________________________ | |
201 | void AliCorrection::SaveHistograms() | |
202 | { | |
203 | // | |
204 | // saves the histograms in a directory with the name of this object (GetName) | |
205 | // | |
206 | ||
207 | gDirectory->mkdir(GetName()); | |
208 | gDirectory->cd(GetName()); | |
209 | ||
210 | if (fEventCorr) | |
211 | fEventCorr->SaveHistograms(); | |
212 | ||
213 | if (fTrackCorr) | |
214 | fTrackCorr->SaveHistograms(); | |
215 | ||
216 | gDirectory->cd(".."); | |
217 | } | |
218 | ||
219 | //____________________________________________________________________ | |
220 | void AliCorrection::ReduceInformation() | |
221 | { | |
222 | // this function deletes the measured and generated histograms to reduce the amount of data | |
223 | // in memory | |
224 | ||
225 | if (!fEventCorr || !fTrackCorr) | |
226 | return; | |
227 | ||
228 | fEventCorr->ReduceInformation(); | |
229 | fTrackCorr->ReduceInformation(); | |
230 | } | |
231 | ||
232 | //____________________________________________________________________ | |
233 | void AliCorrection::Reset(Option_t* option) | |
234 | { | |
235 | // resets the histograms | |
236 | ||
237 | if (fEventCorr) | |
238 | fEventCorr->Reset(option); | |
239 | ||
240 | if (fTrackCorr) | |
241 | fTrackCorr->Reset(option); | |
242 | } | |
243 | ||
244 | //____________________________________________________________________ | |
245 | void AliCorrection::DrawHistograms(const Char_t* name) | |
246 | { | |
247 | // draws the corrections | |
248 | ||
249 | if (!name) | |
250 | name = GetName(); | |
251 | ||
252 | if (fEventCorr) | |
253 | fEventCorr->DrawHistograms(Form("%s event", name)); | |
254 | ||
255 | if (fTrackCorr) | |
256 | fTrackCorr->DrawHistograms(Form("%s track", name)); | |
257 | } | |
258 | ||
259 | //____________________________________________________________________ | |
260 | void AliCorrection::SetCorrectionToUnity() | |
261 | { | |
262 | // set the corrections to unity | |
263 | ||
264 | if (fEventCorr) | |
265 | fEventCorr->SetCorrectionToUnity(); | |
266 | ||
267 | if (fTrackCorr) | |
268 | fTrackCorr->SetCorrectionToUnity(); | |
269 | } | |
270 | ||
271 | //____________________________________________________________________ | |
272 | void AliCorrection::Multiply() | |
273 | { | |
274 | // call Multiply | |
275 | ||
276 | if (fEventCorr) | |
277 | { | |
278 | fEventCorr->Multiply(); | |
279 | // now we manually copy the overflow bin of the y axis (multiplicity) over. This is important to get the event count correct | |
280 | TH2F* hist = fEventCorr->GetMeasuredHistogram(); | |
281 | for (Int_t x = 1; x <= hist->GetNbinsX(); ++x) | |
282 | fEventCorr->GetGeneratedHistogram()->SetBinContent(x, hist->GetNbinsY() + 1, hist->GetBinContent(x, hist->GetNbinsY() + 1)); | |
283 | } | |
284 | ||
285 | if (fTrackCorr) | |
286 | fTrackCorr->Multiply(); | |
287 | } |