fading out dependent helper (AliPWG0depHelper)
[u/mrichter/AliRoot.git] / PWG0 / AliCorrection.cxx
CommitLineData
29771dc8 1/* $Id$ */
2
3// ------------------------------------------------------
4//
5// Class to handle corrections.
6//
7// ------------------------------------------------------
8//
9
10#include <TFile.h>
11#include <TCanvas.h>
06e4b91b 12#include <TH3F.h>
29771dc8 13#include <TH2F.h>
14
15#include <AliLog.h>
16#include "AliCorrectionMatrix2D.h"
17#include "AliCorrectionMatrix3D.h"
18
19#include "AliCorrection.h"
20
21//____________________________________________________________________
22ClassImp(AliCorrection)
23
24//____________________________________________________________________
25AliCorrection::AliCorrection() : TNamed(),
26 fEventCorr(0),
27 fTrackCorr(0)
28{
29 // default constructor
30}
31
32//____________________________________________________________________
116083b1 33AliCorrection::AliCorrection(const Char_t* name, const Char_t* title, const char* analysis) : TNamed(name, title),
29771dc8 34 fEventCorr(0),
35 fTrackCorr(0)
36{
37 // constructor initializing tnamed
38
116083b1 39 Float_t* binLimitsPt = 0;
40 Int_t nBinsPt = 0;
41
42 // different binnings, better solution could be anticipated...
43 if (TString(analysis).CompareTo("tpc", TString::kIgnoreCase) == 0)
44 {
45 static Float_t binLimitsPtTmp[] = {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};
46 binLimitsPt = (Float_t*) binLimitsPtTmp;
47 nBinsPt = 28;
48 } else if (TString(analysis).CompareTo("spd", TString::kIgnoreCase) == 0)
49 {
50 static Float_t binLimitsPtTmp[] = {-0.5, 0.5};
51 binLimitsPt = (Float_t*) binLimitsPtTmp;
52 nBinsPt = 1;
53 }
54
55 if (!binLimitsPt)
56 {
57 Printf("FATAL: Invalid binning");
58 return;
59 }
60
29771dc8 61 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};
62 //Float_t binLimitsVtx[] = {-20,-15,-10,-6,-3,0,3,6,10,15,20};
083a636e 63 //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};
64 Float_t binLimitsVtx[] = {-20,-15,-10,-8,-6,-4,-2,0,2,4,6,8,10,15,20};
447c325d 65 Float_t binLimitsEta[] = {-2,-1.9,-1.8,-1.7,-1.6,-1.5,-1.4,-1.3,-1.2,-1.1,-1.0,-0.9,-0.8,-0.7,-0.6,-0.5,-0.4,-0.3,-0.2,-0.1,0.0,0.1,0.2,0.3,0.4,0.5,0.6,0.7,0.8,0.9,1.0,1.1,1.2,1.3,1.4,1.5,1.6,1.7,1.8,1.9,2.0};
66// Float_t binLimitsEta[] = { -7.0, -6.9, -6.8, -6.7, -6.6, -6.5, -6.4, -6.3, -6.2, -6.1, -6.0, -5.9, -5.8, -5.7, -5.6, -5.5, -5.4, -5.3, -5.2, -5.1, -5.0, -4.9, -4.8, -4.7, -4.6, -4.5, -4.4, -4.3, -4.2, -4.1, -4.0, -3.9, -3.8, -3.7, -3.6, -3.5, -3.4, -3.3, -3.2, -3.1, -3.0, -2.9, -2.8, -2.7, -2.6, -2.5, -2.4, -2.3, -2.2, -2.1, -2.0, -1.9, -1.8, -1.7, -1.6, -1.5, -1.4, -1.3, -1.2, -1.1, -1.0, -0.9, -0.8, -0.7, -0.6, -0.5, -0.4, -0.3, -0.2, -0.1, -0.0, 0.1, 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8, 0.9, 1.0, 1.1, 1.2, 1.3, 1.4, 1.5, 1.6, 1.7, 1.8, 1.9, 2.0, 2.1, 2.2, 2.3, 2.4, 2.5, 2.6, 2.7, 2.8, 2.9, 3.0, 3.1, 3.2, 3.3, 3.4, 3.5, 3.6, 3.7, 3.8, 3.9, 4.0, 4.1, 4.2, 4.3, 4.4, 4.5, 4.6, 4.7, 4.8, 4.9, 5.0, 5.1, 5.2, 5.3, 5.4, 5.5, 5.6, 5.7, 5.8, 5.9, 6.0, 6.1, 6.2, 6.3, 6.4, 6.5, 6.6, 6.7, 6.8, 6.9, 7.0 };
06e4b91b 67
116083b1 68 TH3F* dummyBinning = new TH3F("dummyBinning","dummyBinning",14, binLimitsVtx, 40, binLimitsEta , nBinsPt, binLimitsPt);
29771dc8 69
82ac9fc4 70 fEventCorr = new AliCorrectionMatrix2D("EventCorrection", Form("%s EventCorrection", fTitle.Data()), 14, binLimitsVtx, 22, binLimitsN);
71 fTrackCorr = new AliCorrectionMatrix3D("TrackCorrection", Form("%s TrackCorrection", fTitle.Data()), dummyBinning);
06e4b91b 72
73 delete dummyBinning;
29771dc8 74
75 fEventCorr->SetAxisTitles("vtx z [cm]", "Ntracks");
76 fTrackCorr->SetAxisTitles("vtx z [cm]", "#eta", "p_{T} [GeV/c]");
77}
78
79//____________________________________________________________________
80AliCorrection::AliCorrection(const AliCorrection& c) : TNamed(c),
81 fEventCorr(0),
82 fTrackCorr(0)
83{
84 // copy constructor
85 ((AliCorrection &)c).Copy(*this);
86}
87
88//____________________________________________________________________
89AliCorrection::~AliCorrection()
90{
91 //
92 // destructor
93 //
94
95 if (fEventCorr)
96 {
97 delete fEventCorr;
98 fEventCorr = 0;
99 }
100
101 if (fTrackCorr)
102 {
103 delete fTrackCorr;
104 fTrackCorr = 0;
105 }
106}
107
108//____________________________________________________________________
109AliCorrection &AliCorrection::operator=(const AliCorrection &c)
110{
111 // assigment operator
112
113 if (this != &c)
114 ((AliCorrection &) c).Copy(*this);
115
116 return *this;
117}
118
119//____________________________________________________________________
120void AliCorrection::Copy(TObject& c) const
121{
122 // copy function
123
124 AliCorrection& target = (AliCorrection &) c;
125
126 if (fEventCorr)
127 target.fEventCorr = dynamic_cast<AliCorrectionMatrix2D*> (fEventCorr->Clone());
128
129 if (fTrackCorr)
130 target.fTrackCorr = dynamic_cast<AliCorrectionMatrix3D*> (fTrackCorr->Clone());
131}
132
133//____________________________________________________________________
134Long64_t AliCorrection::Merge(TCollection* list)
135{
136 // Merge a list of AliCorrection objects with this (needed for
137 // PROOF).
138 // Returns the number of merged objects (including this).
139
140 if (!list)
141 return 0;
142
143 if (list->IsEmpty())
144 return 1;
145
146 TIterator* iter = list->MakeIterator();
147 TObject* obj;
148
149 // collections of measured and generated histograms
150 TList* collectionEvent = new TList;
151 TList* collectionTrack = new TList;
152
153 Int_t count = 0;
154 while ((obj = iter->Next())) {
155
156 AliCorrection* entry = dynamic_cast<AliCorrection*> (obj);
157 if (entry == 0)
158 continue;
159
160 collectionEvent->Add(entry->fEventCorr);
161 collectionTrack->Add(entry->fTrackCorr);
162
163 count++;
164 }
165 fEventCorr->Merge(collectionEvent);
166 fTrackCorr->Merge(collectionTrack);
167
168 delete collectionEvent;
169 delete collectionTrack;
170
171 return count+1;
172}
173
174//____________________________________________________________________
175void AliCorrection::Divide()
176{
177 //
178 // divide the histograms to get the correction
179 //
180
181 if (!fEventCorr || !fTrackCorr)
182 return;
183
184 fEventCorr->Divide();
185 fTrackCorr->Divide();
186
187 Int_t emptyBins = fTrackCorr->CheckEmptyBins(-9.99, 9.99, -0.79, 0.79, 0.3, 9.9);
188 printf("INFO: In the central region the track correction of %s has %d empty bins\n", GetName(), emptyBins);
189}
190
2e88424e 191//____________________________________________________________________
192void AliCorrection::Add(AliCorrection* aCorrectionToAdd, Float_t c)
193{
194 //
195 // add to measured and generated the measured and generated of aCorrectionToAdd
196 // with the weight c
197
198 fEventCorr->Add(aCorrectionToAdd->GetEventCorrection(),c);
199 fTrackCorr->Add(aCorrectionToAdd->GetTrackCorrection(),c);
200}
201
202
29771dc8 203//____________________________________________________________________
204Bool_t AliCorrection::LoadHistograms(const Char_t* dir)
205{
206 //
207 // loads the histograms from a file
208 // if dir is empty a directory with the name of this object is taken (like in SaveHistogram)
209 //
210
211 if (!fEventCorr || !fTrackCorr)
212 return kFALSE;
213
214 if (!dir)
215 dir = GetName();
216
217 if (!gDirectory->cd(dir))
218 return kFALSE;
219
220 Bool_t success = fEventCorr->LoadHistograms();
221 success &= fTrackCorr->LoadHistograms();
222
223 gDirectory->cd("..");
224
225 return success;
226}
227
228//____________________________________________________________________
229void AliCorrection::SaveHistograms()
230{
231 //
232 // saves the histograms in a directory with the name of this object (GetName)
233 //
234
235 gDirectory->mkdir(GetName());
236 gDirectory->cd(GetName());
237
238 if (fEventCorr)
239 fEventCorr->SaveHistograms();
240
241 if (fTrackCorr)
242 fTrackCorr->SaveHistograms();
243
244 gDirectory->cd("..");
245}
246
247//____________________________________________________________________
248void AliCorrection::ReduceInformation()
249{
250 // this function deletes the measured and generated histograms to reduce the amount of data
251 // in memory
252
253 if (!fEventCorr || !fTrackCorr)
254 return;
255
256 fEventCorr->ReduceInformation();
257 fTrackCorr->ReduceInformation();
258}
259
260//____________________________________________________________________
261void AliCorrection::Reset(Option_t* option)
262{
263 // resets the histograms
264
265 if (fEventCorr)
266 fEventCorr->Reset(option);
267
268 if (fTrackCorr)
269 fTrackCorr->Reset(option);
270}
271
272//____________________________________________________________________
273void AliCorrection::DrawHistograms(const Char_t* name)
274{
275 // draws the corrections
276
277 if (!name)
278 name = GetName();
279
280 if (fEventCorr)
281 fEventCorr->DrawHistograms(Form("%s event", name));
282
283 if (fTrackCorr)
284 fTrackCorr->DrawHistograms(Form("%s track", name));
285}
286
287//____________________________________________________________________
288void AliCorrection::SetCorrectionToUnity()
289{
290 // set the corrections to unity
291
292 if (fEventCorr)
293 fEventCorr->SetCorrectionToUnity();
294
295 if (fTrackCorr)
296 fTrackCorr->SetCorrectionToUnity();
297}
298
299//____________________________________________________________________
300void AliCorrection::Multiply()
301{
302 // call Multiply
303
304 if (fEventCorr)
305 {
306 fEventCorr->Multiply();
307 // now we manually copy the overflow bin of the y axis (multiplicity) over. This is important to get the event count correct
308 TH2F* hist = fEventCorr->GetMeasuredHistogram();
309 for (Int_t x = 1; x <= hist->GetNbinsX(); ++x)
310 fEventCorr->GetGeneratedHistogram()->SetBinContent(x, hist->GetNbinsY() + 1, hist->GetBinContent(x, hist->GetNbinsY() + 1));
311 }
312
313 if (fTrackCorr)
314 fTrackCorr->Multiply();
315}