]>
Commit | Line | Data |
---|---|---|
13f28255 | 1 | // |
2 | // Class AliRsnFunction | |
3 | // | |
4 | // This class defines a base classe to implement a function | |
5 | // which uses the internal RSN package event format (AliRsnEvent). | |
6 | // It contains some default flags which turn out to be useful: | |
7 | // - a flag to select only the "true" pairs (tracks from same resonance) | |
8 | // - a flag to know if the computation is done over two events (mixing) | |
9 | // | |
10 | // Any kind of analysis object should be implemented as inheriting from this | |
11 | // because the AliRsnAnalyzer which executes the analysis will accept a collection | |
12 | // of such objects, in order to have a unique format of processing method | |
13 | // | |
e0baff8c | 14 | // The user who implements a kind of computation type should inherit from |
15 | // this class and override the virtual functions defined in it, which | |
13f28255 | 16 | // initialize the final output histogram and define how to process data. |
17 | // | |
18 | // | |
19 | // author: A. Pulvirenti (email: alberto.pulvirenti@ct.infn.it) | |
20 | // | |
21 | ||
13f28255 | 22 | #include <TString.h> |
b2b08ca2 | 23 | #include <TAxis.h> |
13f28255 | 24 | |
25 | #include "AliLog.h" | |
26 | ||
13f28255 | 27 | #include "AliRsnDaughter.h" |
28 | #include "AliRsnEvent.h" | |
29 | #include "AliRsnPairDef.h" | |
2dab9030 | 30 | #include "AliRsnMother.h" |
31 | #include "AliRsnValue.h" | |
13f28255 | 32 | |
33 | #include "AliRsnFunction.h" | |
34 | ||
35 | ClassImp(AliRsnFunction) | |
36 | ||
37 | //________________________________________________________________________________________ | |
eb079724 | 38 | AliRsnFunction::AliRsnFunction(Bool_t useTH1) : |
32992791 | 39 | TObject(), |
40 | fPairDef(0x0), | |
41 | fAxisList("AliRsnValue", 0), | |
42 | fPair(0x0), | |
43 | fEvent(0x0), | |
44 | fUseTH1(useTH1), | |
45 | fSize(0), | |
46 | fH1(0x0), | |
47 | fHSparse(0x0) | |
13f28255 | 48 | { |
5eb970a4 | 49 | // |
b2028424 | 50 | // Constructor. |
5eb970a4 | 51 | // |
8a22fe6f | 52 | } |
13f28255 | 53 | |
54 | //________________________________________________________________________________________ | |
5eb970a4 | 55 | AliRsnFunction::AliRsnFunction(const AliRsnFunction ©) : |
32992791 | 56 | TObject(copy), |
57 | fPairDef(copy.fPairDef), | |
58 | fAxisList(copy.fAxisList), | |
59 | fPair(copy.fPair), | |
60 | fEvent(copy.fEvent), | |
61 | fUseTH1(copy.fUseTH1), | |
62 | fSize(copy.fSize), | |
63 | fH1(0x0), | |
64 | fHSparse(0x0) | |
13f28255 | 65 | { |
5eb970a4 | 66 | // |
67 | // Copy constructor. | |
68 | // | |
13f28255 | 69 | } |
70 | ||
71 | //________________________________________________________________________________________ | |
5eb970a4 | 72 | const AliRsnFunction& AliRsnFunction::operator=(const AliRsnFunction& copy) |
13f28255 | 73 | { |
5eb970a4 | 74 | // |
75 | // Assignment operator. | |
76 | // | |
77 | ||
5eb970a4 | 78 | fPairDef = copy.fPairDef; |
5eb970a4 | 79 | fPair = copy.fPair; |
80 | fEvent = copy.fEvent; | |
eb079724 | 81 | fUseTH1 = copy.fUseTH1; |
82 | fSize = copy.fSize; | |
5eb970a4 | 83 | |
eb079724 | 84 | if (fH1) delete fH1; |
85 | fH1 = 0x0; | |
86 | ||
87 | if (fHSparse) delete fHSparse; | |
88 | fHSparse = 0x0; | |
5eb970a4 | 89 | |
5eb970a4 | 90 | return (*this); |
13f28255 | 91 | } |
92 | ||
93 | //________________________________________________________________________________________ | |
b2028424 | 94 | const char* AliRsnFunction::GetName() const |
13f28255 | 95 | { |
5eb970a4 | 96 | // |
97 | // Defines the name of this object according to | |
98 | // the function type and binning | |
99 | // | |
13f28255 | 100 | |
b2028424 | 101 | TString name(""); |
e0baff8c | 102 | |
b2028424 | 103 | TObjArrayIter next(&fAxisList); |
2dab9030 | 104 | AliRsnValue *axis = 0; |
13f28255 | 105 | |
32992791 | 106 | while ((axis = (AliRsnValue*)next())) |
107 | { | |
b2028424 | 108 | if (name.Length() > 1) name += '_'; |
109 | name += axis->GetName(); | |
13f28255 | 110 | } |
13f28255 | 111 | |
b2028424 | 112 | return name.Data(); |
5eb970a4 | 113 | } |
114 | ||
b2028424 | 115 | //________________________________________________________________________________________ |
32992791 | 116 | Bool_t AliRsnFunction::AddAxis(AliRsnValue *const axis) |
5eb970a4 | 117 | { |
32992791 | 118 | // |
119 | // Try to add a new axis to this function. | |
120 | // The operation succeeds only if the related value object | |
121 | // has a target amon those allowed here (AliRsnMother, AliRsnEvent), | |
122 | // otherwise the axis is not added. | |
123 | // | |
124 | // If more than 3 axes are added, switch to THnSparseF output. | |
125 | // NOTE: this can cause large files and high memory occupancy. | |
126 | // | |
127 | ||
128 | RSNTARGET target = axis->GetTargetType(); | |
129 | if (target != AliRsnTarget::kMother && target != AliRsnTarget::kEvent) | |
130 | { | |
131 | AliError(Form("Allowed targets are mothers and events; cannot use axis '%s' which has target '%s'", axis->GetName(), axis->GetTargetTypeName())); | |
132 | return kFALSE; | |
133 | } | |
134 | ||
b2028424 | 135 | Int_t size = fAxisList.GetEntries(); |
32992791 | 136 | new (fAxisList[size]) AliRsnValue(*axis); |
2dab9030 | 137 | |
138 | if (fAxisList.GetEntries() > 3) | |
eb079724 | 139 | { |
32992791 | 140 | AliWarning("Adding more than 3 axes will produce a THnSparseD output."); |
eb079724 | 141 | fUseTH1 = kFALSE; |
142 | } | |
32992791 | 143 | |
144 | return kTRUE; | |
13f28255 | 145 | } |
146 | ||
147 | //________________________________________________________________________________________ | |
eb079724 | 148 | TH1* AliRsnFunction::CreateHistogram(const char *histoName, const char *histoTitle) |
13f28255 | 149 | { |
5eb970a4 | 150 | // |
151 | // Creates and returns the histogram defined using | |
152 | // arguments fo name and title, and the first histoDef for binning. | |
153 | // Variable-sized histogram binning is always called, due to use of histoDef, | |
154 | // even if the bins are equal, since they are defined in this class. | |
155 | // Eventually present histoDef's in other slots of array (1, 2) are ignored. | |
eb079724 | 156 | // |
0d73200d | 157 | // This version produces a THnSparseF. |
5eb970a4 | 158 | // |
13f28255 | 159 | |
eb079724 | 160 | fSize = fAxisList.GetEntries(); |
32992791 | 161 | if (!fSize) |
162 | { | |
eb079724 | 163 | AliError("No axes defined"); |
164 | return 0x0; | |
165 | } | |
32992791 | 166 | else if (fSize > 3) |
eb079724 | 167 | { |
32992791 | 168 | AliError("Too many axes defined for a TH1 object"); |
eb079724 | 169 | return 0x0; |
170 | } | |
171 | ||
eb079724 | 172 | // retrieve binnings for main and secondary axes |
b2b08ca2 | 173 | AliRsnValue *fcnAxis; |
174 | TArrayD array[3]; | |
175 | for (Int_t i = 0; i < fSize; i++) | |
176 | { | |
2dab9030 | 177 | fcnAxis = (AliRsnValue*)fAxisList.At(i); |
b2b08ca2 | 178 | if (!fcnAxis) |
179 | { | |
eb079724 | 180 | AliError("Empty axis"); |
b2b08ca2 | 181 | array[i].Set(2); |
182 | array[i][0] = -1E5; | |
183 | array[i][1] = -1E5; | |
eb079724 | 184 | continue; |
185 | } | |
b2b08ca2 | 186 | else |
187 | { | |
188 | array[i] = fcnAxis->GetArray(); | |
189 | } | |
eb079724 | 190 | } |
191 | ||
192 | // create histogram depending on the number of axes | |
193 | switch (fSize) | |
194 | { | |
195 | case 1: | |
b2b08ca2 | 196 | fH1 = new TH1F(histoName, histoTitle, array[0].GetSize() - 1, array[0].GetArray()); |
eb079724 | 197 | break; |
198 | case 2: | |
b2b08ca2 | 199 | fH1 = new TH2F(histoName, histoTitle, array[0].GetSize() - 1, array[0].GetArray(), array[1].GetSize() - 1, array[1].GetArray()); |
eb079724 | 200 | break; |
201 | case 3: | |
b2b08ca2 | 202 | fH1 = new TH3F(histoName, histoTitle, array[0].GetSize() - 1, array[0].GetArray(), array[1].GetSize() - 1, array[1].GetArray(), array[2].GetSize() - 1, array[2].GetArray()); |
eb079724 | 203 | break; |
204 | } | |
205 | fH1->Sumw2(); | |
206 | ||
207 | return fH1; | |
208 | } | |
209 | ||
210 | //________________________________________________________________________________________ | |
0d73200d | 211 | THnSparseF* AliRsnFunction::CreateHistogramSparse(const char *histoName, const char *histoTitle) |
eb079724 | 212 | { |
213 | // | |
214 | // Creates and returns the histogram defined using | |
215 | // arguments fo name and title, and the first histoDef for binning. | |
216 | // Variable-sized histogram binning is always called, due to use of histoDef, | |
217 | // even if the bins are equal, since they are defined in this class. | |
218 | // Eventually present histoDef's in other slots of array (1, 2) are ignored. | |
219 | // | |
0d73200d | 220 | // This version produces a THnSparseF. |
eb079724 | 221 | // |
222 | ||
223 | fSize = fAxisList.GetEntries(); | |
32992791 | 224 | if (!fSize) |
225 | { | |
b2028424 | 226 | AliError("No axes defined"); |
227 | return 0x0; | |
228 | } | |
b2b08ca2 | 229 | |
cc4a35d5 | 230 | // initialize the array of number of bins for each axis |
231 | // taking it from the stored values, while for the bins | |
232 | // they are set as summied and defined later | |
ceb7ce00 | 233 | Double_t dummyD; |
234 | Int_t *nbins = new Int_t[fSize]; | |
235 | AliRsnValue *fcnAxis = 0; | |
cc4a35d5 | 236 | for (Int_t i = 0; i < fSize; i++) |
237 | { | |
ceb7ce00 | 238 | fcnAxis = (AliRsnValue*)fAxisList.At(i); |
cc4a35d5 | 239 | if (!fcnAxis) |
240 | { | |
241 | nbins[i] = 1; | |
242 | AliError("Empty axis"); | |
243 | continue; | |
244 | } | |
ceb7ce00 | 245 | nbins[i] = fcnAxis->GetArray().GetSize() - 1; |
cc4a35d5 | 246 | } |
b2028424 | 247 | |
b2b08ca2 | 248 | // create histogram |
cc4a35d5 | 249 | fHSparse = new THnSparseF(histoName, histoTitle, fSize, nbins, &dummyD, &dummyD); |
b2b08ca2 | 250 | fHSparse->Sumw2(); |
251 | ||
252 | // update the various axes using the definitions given in the array of axes here | |
b2b08ca2 | 253 | for (Int_t i = 0; i < fSize; i++) |
254 | { | |
2dab9030 | 255 | fcnAxis = (AliRsnValue*)fAxisList.At(i); |
b2028424 | 256 | if (!fcnAxis) { |
b2b08ca2 | 257 | AliError("Empty axis: doing unique bin betweeen -100000 and 100000"); |
b2028424 | 258 | continue; |
5eb970a4 | 259 | } |
2467e7c3 | 260 | fHSparse->SetBinEdges(i, fcnAxis->GetArray().GetArray()); |
eb079724 | 261 | } |
740e7310 | 262 | |
263 | delete [] nbins; | |
eb079724 | 264 | |
eb079724 | 265 | return fHSparse; |
5eb970a4 | 266 | } |
267 | ||
eb079724 | 268 | |
5eb970a4 | 269 | //________________________________________________________________________________________ |
270 | Bool_t AliRsnFunction::Fill() | |
271 | { | |
272 | // | |
273 | // Fill function histogram with values computed from given input object. | |
274 | // | |
b2028424 | 275 | |
5eb970a4 | 276 | AliDebug(AliLog::kDebug +2,"->"); |
277 | ||
eb079724 | 278 | Int_t i; |
279 | Double_t *values = new Double_t[fSize]; | |
32992791 | 280 | Bool_t computeOK = kFALSE; |
b2028424 | 281 | |
2dab9030 | 282 | AliRsnValue *fcnAxis = 0; |
32992791 | 283 | for (i = 0; i < fSize; i++) |
284 | { | |
285 | values[i] = 0.0; | |
2dab9030 | 286 | fcnAxis = (AliRsnValue*)fAxisList.At(i); |
32992791 | 287 | if (!fcnAxis) continue; |
288 | switch (fcnAxis->GetTargetType()) | |
96e9d35d | 289 | { |
32992791 | 290 | case AliRsnTarget::kMother: |
291 | fcnAxis->SetSupportObject(fPairDef); | |
292 | computeOK = fcnAxis->Eval(fPair); | |
293 | break; | |
294 | case AliRsnTarget::kEvent: | |
295 | computeOK = fcnAxis->Eval(fEvent); | |
296 | break; | |
297 | default: | |
298 | AliError(Form("Allowed targets are mothers and events; cannot use axis '%s' which has target '%s'", fcnAxis->GetName(), fcnAxis->GetTargetTypeName())); | |
299 | computeOK = kFALSE; | |
b2028424 | 300 | } |
32992791 | 301 | if (computeOK) values[i] = ((Float_t)fcnAxis->GetComputedValue()); |
5eb970a4 | 302 | } |
eb079724 | 303 | |
304 | // fill histogram | |
305 | if (fUseTH1) | |
306 | { | |
307 | // check presence of output histogram | |
32992791 | 308 | if (!fH1) |
309 | { | |
96e9d35d | 310 | AliError("Required a TH1 which is not initialized"); |
311 | delete [] values; | |
eb079724 | 312 | return kFALSE; |
313 | } | |
314 | ||
315 | // fill according to dimensions | |
316 | switch (fSize) | |
317 | { | |
318 | case 1: | |
319 | { | |
0d73200d | 320 | TH1F *h1 = (TH1F*)fH1; |
eb079724 | 321 | h1->Fill(values[0]); |
322 | } | |
323 | break; | |
324 | case 2: | |
325 | { | |
0d73200d | 326 | TH2F *h2 = (TH2F*)fH1; |
eb079724 | 327 | h2->Fill(values[0], values[1]); |
328 | } | |
329 | break; | |
330 | case 3: | |
331 | { | |
0d73200d | 332 | TH3F *h3 = (TH3F*)fH1; |
eb079724 | 333 | h3->Fill(values[0], values[1], values[2]); |
334 | } | |
335 | break; | |
336 | default: | |
337 | AliError(Form("Wrong size : %d", fSize)); | |
96e9d35d | 338 | delete [] values; |
eb079724 | 339 | return kFALSE; |
340 | } | |
341 | } | |
342 | else | |
343 | { | |
344 | // check presence of output histogram | |
32992791 | 345 | if (!fHSparse) |
346 | { | |
0d73200d | 347 | AliError("Required a THnSparseF which is not initialized"); |
d0282f3d | 348 | delete [] values; |
eb079724 | 349 | return kFALSE; |
350 | } | |
351 | ||
352 | fHSparse->Fill(values); | |
5eb970a4 | 353 | } |
eb079724 | 354 | |
355 | delete [] values; | |
e0baff8c | 356 | |
5eb970a4 | 357 | AliDebug(AliLog::kDebug +2,"->"); |
358 | return kTRUE; | |
13f28255 | 359 | } |