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db6722a5 | 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 | // // | |
17 | // AliCFGridSparse Class // | |
18 | // Class to accumulate data on an N-dimensional grid, to be used // | |
19 | // as input to get corrections for Reconstruction & Trigger efficiency// | |
20 | // Based on root THnSparse // | |
21 | // -- Author : S.Arcelli // | |
22 | // Still to be done: // | |
23 | // --Interpolate among bins in a range // | |
24 | //--------------------------------------------------------------------// | |
25 | // | |
26 | // | |
27 | #include "AliCFGridSparse.h" | |
28 | #include "THnSparse.h" | |
29 | #include "AliLog.h" | |
30 | #include "TMath.h" | |
31 | #include "TROOT.h" | |
32 | #include "TH1D.h" | |
33 | #include "TH2D.h" | |
34 | #include "TH3D.h" | |
35 | #include "TAxis.h" | |
36 | ||
37 | //____________________________________________________________________ | |
38 | ClassImp(AliCFGridSparse) | |
39 | ||
40 | //____________________________________________________________________ | |
41 | AliCFGridSparse::AliCFGridSparse() : | |
42 | AliCFVGrid(), | |
db6722a5 | 43 | fData(0x0) |
44 | { | |
45 | // default constructor | |
46 | } | |
47 | //____________________________________________________________________ | |
48 | AliCFGridSparse::AliCFGridSparse(const Char_t* name, const Char_t* title) : | |
49 | AliCFVGrid(name,title), | |
db6722a5 | 50 | fData(0x0) |
51 | { | |
52 | // default constructor | |
53 | } | |
54 | //____________________________________________________________________ | |
55 | AliCFGridSparse::AliCFGridSparse(const Char_t* name, const Char_t* title, const Int_t nVarIn, const Int_t * nBinIn, const Double_t *binLimitsIn) : | |
56 | AliCFVGrid(name,title,nVarIn,nBinIn,binLimitsIn), | |
db6722a5 | 57 | fData(0x0) |
58 | { | |
59 | // | |
60 | // main constructor | |
61 | // | |
62 | ||
63 | fData=new THnSparseF(name,title,fNVar,fNVarBins); | |
64 | ||
65 | if(binLimitsIn){ | |
66 | for(Int_t ivar=0;ivar<fNVar;ivar++){ | |
67 | Int_t nbins=fNVarBins[ivar]+1; | |
68 | Double_t *array= new Double_t[nbins]; | |
69 | for(Int_t i=0;i<nbins;i++){ | |
70 | array[i]=fVarBinLimits[fOffset[ivar]+i]; | |
71 | } | |
72 | fData->SetBinEdges(ivar, array); | |
73 | delete array; | |
74 | } | |
75 | } | |
76 | } | |
77 | //____________________________________________________________________ | |
78 | AliCFGridSparse::AliCFGridSparse(const AliCFGridSparse& c) : | |
79 | AliCFVGrid(c), | |
db6722a5 | 80 | fData(c.fData) |
81 | { | |
82 | // | |
83 | // copy constructor | |
84 | // | |
85 | ((AliCFGridSparse &)c).Copy(*this); | |
86 | } | |
87 | ||
88 | //____________________________________________________________________ | |
89 | AliCFGridSparse::~AliCFGridSparse() | |
90 | { | |
91 | // | |
92 | // destructor | |
93 | // | |
94 | if(fData) delete fData; | |
95 | } | |
96 | ||
97 | //____________________________________________________________________ | |
98 | AliCFGridSparse &AliCFGridSparse::operator=(const AliCFGridSparse &c) | |
99 | { | |
100 | // | |
101 | // assigment operator | |
102 | // | |
103 | if (this != &c) | |
104 | ((AliCFGridSparse &) c).Copy(*this); | |
105 | return *this; | |
106 | } | |
107 | ||
108 | //____________________________________________________________________ | |
109 | void AliCFGridSparse::SetBinLimits(Int_t ivar, Double_t *array) | |
110 | { | |
111 | // | |
112 | // setting the arrays containing the bin limits | |
113 | // | |
114 | fData->SetBinEdges(ivar, array); | |
115 | //then fill the appropriate array in ALICFFrame, to be able to use | |
116 | //the getter, in case.... | |
117 | Int_t nbins=fNVarBins[ivar]+1; | |
118 | for(Int_t i=0;i<nbins;i++){ | |
119 | fVarBinLimits[fOffset[ivar]+i] =array[i]; | |
120 | } | |
121 | } | |
122 | ||
123 | //____________________________________________________________________ | |
124 | void AliCFGridSparse::Fill(Double_t *var, Double_t weight) | |
125 | { | |
126 | // | |
127 | // Fill the grid, | |
128 | // given a set of values of the input variable, | |
129 | // with weight (by default w=1) | |
130 | // | |
131 | fData->Fill(var,weight); | |
132 | } | |
133 | ||
134 | //___________________________________________________________________ | |
135 | TH1D *AliCFGridSparse::Project(Int_t ivar) const | |
136 | { | |
137 | // | |
138 | // Make a 1D projection along variable ivar | |
139 | // | |
140 | ||
db6722a5 | 141 | TH1D *hist=fData->Projection(ivar); |
db6722a5 | 142 | return hist; |
db6722a5 | 143 | } |
144 | //___________________________________________________________________ | |
145 | TH2D *AliCFGridSparse::Project(Int_t ivar1, Int_t ivar2) const | |
146 | { | |
147 | // | |
148 | // Make a 2D projection along variables ivar1 & ivar2 | |
149 | // | |
150 | ||
318f64b1 | 151 | TH2D *hist=fData->Projection(ivar2,ivar1); //notice inverted axis (THnSparse uses TH3 2d-projection convention...) |
db6722a5 | 152 | return hist; |
153 | ||
154 | } | |
155 | //___________________________________________________________________ | |
156 | TH3D *AliCFGridSparse::Project(Int_t ivar1, Int_t ivar2, Int_t ivar3) const | |
157 | { | |
158 | // | |
159 | // Make a 3D projection along variables ivar1 & ivar2 & ivar3 | |
160 | // | |
db6722a5 | 161 | |
162 | TH3D *hist=fData->Projection(ivar1,ivar2,ivar3); | |
db6722a5 | 163 | return hist; |
164 | ||
165 | } | |
166 | ||
9105291d | 167 | //___________________________________________________________________ |
168 | AliCFGridSparse* AliCFGridSparse::Project(Int_t nVars, Int_t* vars, Double_t* varMin, Double_t* varMax) const | |
169 | { | |
170 | ||
171 | // binning for new grid | |
172 | Int_t* bins = new Int_t[nVars]; | |
173 | for (Int_t iVar=0; iVar<nVars; iVar++) { | |
174 | bins[iVar] = fNVarBins[vars[iVar]]; | |
175 | } | |
176 | ||
177 | // create new grid sparse | |
178 | AliCFGridSparse* out = new AliCFGridSparse(fName,fTitle,nVars,bins); | |
179 | ||
180 | //set the range in the THnSparse to project | |
181 | THnSparse* clone = ((THnSparse*)fData->Clone()); | |
182 | for (Int_t iAxis=0; iAxis<fNVar; iAxis++) { | |
183 | clone->GetAxis(iAxis)->SetRangeUser(varMin[iAxis],varMax[iAxis]); | |
184 | } | |
185 | out->SetGrid(clone->Projection(nVars,vars)); | |
186 | return out; | |
187 | } | |
188 | ||
db6722a5 | 189 | //____________________________________________________________________ |
190 | Float_t AliCFGridSparse::GetOverFlows(Int_t ivar) const | |
191 | { | |
192 | // | |
318f64b1 | 193 | // Returns exclusive overflows in variable ivar |
db6722a5 | 194 | // |
7411edfd | 195 | Int_t* bin = new Int_t[fNVar]; |
196 | memset(bin, 0, sizeof(Int_t) * fNVar); | |
db6722a5 | 197 | Float_t ovfl=0.; |
198 | for (Long64_t i = 0; i < fData->GetNbins(); ++i) { | |
199 | Double_t v = fData->GetBinContent(i, bin); | |
200 | Bool_t add=kTRUE; | |
201 | for(Int_t j=0;j<fNVar;j++){ | |
202 | if(ivar==j)continue; | |
203 | if((bin[j]==0) || (bin[j]==fNVarBins[j]+1))add=kFALSE; | |
204 | } | |
205 | if(bin[ivar]==fNVarBins[ivar]+1 && add) ovfl+=v; | |
206 | } | |
207 | ||
208 | delete[] bin; | |
209 | return ovfl; | |
210 | } | |
211 | ||
212 | //____________________________________________________________________ | |
213 | Float_t AliCFGridSparse::GetUnderFlows(Int_t ivar) const | |
214 | { | |
215 | // | |
318f64b1 | 216 | // Returns exclusive overflows in variable ivar |
db6722a5 | 217 | // |
7411edfd | 218 | Int_t* bin = new Int_t[fNVar]; |
219 | memset(bin, 0, sizeof(Int_t) * fNVar); | |
db6722a5 | 220 | Float_t unfl=0.; |
221 | for (Long64_t i = 0; i < fData->GetNbins(); ++i) { | |
222 | Double_t v = fData->GetBinContent(i, bin); | |
223 | Bool_t add=kTRUE; | |
224 | for(Int_t j=0;j<fNVar;j++){ | |
225 | if(ivar==j)continue; | |
226 | if((bin[j]==0) || (bin[j]==fNVarBins[j]+1))add=kFALSE; | |
227 | } | |
228 | if(bin[ivar]==0 && add) unfl+=v; | |
229 | } | |
230 | ||
231 | delete[] bin; | |
232 | return unfl; | |
233 | } | |
234 | ||
235 | ||
236 | //____________________________________________________________________ | |
237 | Float_t AliCFGridSparse::GetEntries() const | |
238 | { | |
239 | // | |
240 | // total entries (including overflows and underflows) | |
241 | // | |
242 | ||
243 | return fData->GetEntries(); | |
244 | } | |
245 | ||
246 | //____________________________________________________________________ | |
247 | Float_t AliCFGridSparse::GetElement(Int_t index) const | |
248 | { | |
249 | // | |
250 | // Returns content of grid element index according to the | |
251 | // linear indexing in AliCFFrame | |
252 | // | |
253 | Int_t *bin = new Int_t[fNVar]; | |
254 | GetBinIndex(index, bin); | |
255 | for(Int_t i=0;i<fNVar;i++)fIndex[i]=bin[i]+1; //consistency with AliCFGrid | |
256 | Float_t val=GetElement(fIndex); | |
257 | delete [] bin; | |
258 | return val; | |
259 | ||
260 | } | |
261 | //____________________________________________________________________ | |
262 | Float_t AliCFGridSparse::GetElement(Int_t *bin) const | |
263 | { | |
264 | // | |
265 | // Get the content in a bin corresponding to a set of bin indexes | |
266 | // | |
267 | return fData->GetBinContent(bin); | |
268 | ||
269 | } | |
270 | //____________________________________________________________________ | |
271 | Float_t AliCFGridSparse::GetElement(Double_t *var) const | |
272 | { | |
273 | // | |
274 | // Get the content in a bin corresponding to a set of input variables | |
275 | // | |
276 | ||
277 | Long_t index=fData->GetBin(var,kFALSE); //this is the THnSparse index (do not allocate new cells if content is empty) | |
278 | if(index<0){ | |
279 | return 0.; | |
280 | }else{ | |
281 | return fData->GetBinContent(index); | |
282 | } | |
283 | } | |
284 | ||
285 | //____________________________________________________________________ | |
286 | Float_t AliCFGridSparse::GetElementError(Int_t index) const | |
287 | { | |
288 | // | |
289 | // Returns the error on the content of a bin according to a linear | |
290 | // indexing in AliCFFrame | |
291 | // | |
292 | ||
293 | Int_t *bin = new Int_t[fNVar]; | |
294 | GetBinIndex(index, bin); | |
295 | for(Int_t i=0;i<fNVar;i++)fIndex[i]=bin[i]+1; //consistency with AliCFGrid | |
296 | Float_t val=GetElementError(fIndex); | |
297 | delete [] bin; | |
298 | return val; | |
299 | ||
300 | } | |
301 | //____________________________________________________________________ | |
302 | Float_t AliCFGridSparse::GetElementError(Int_t *bin) const | |
303 | { | |
304 | // | |
305 | // Get the error in a bin corresponding to a set of bin indexes | |
306 | // | |
307 | return fData->GetBinError(bin); | |
308 | ||
309 | } | |
310 | //____________________________________________________________________ | |
311 | Float_t AliCFGridSparse::GetElementError(Double_t *var) const | |
312 | { | |
313 | // | |
314 | // Get the error in a bin corresponding to a set of input variables | |
315 | // | |
316 | ||
317 | Long_t index=fData->GetBin(var,kFALSE); //this is the THnSparse index (do not allocate new cells if content is empy) | |
318 | if(index<0){ | |
319 | return 0.; | |
320 | }else{ | |
321 | return fData->GetBinError(index); | |
322 | } | |
323 | } | |
324 | ||
325 | ||
326 | //____________________________________________________________________ | |
327 | void AliCFGridSparse::SetElement(Int_t index, Float_t val) | |
328 | { | |
329 | // | |
330 | // Sets grid element iel to val (linear indexing) in AliCFFrame | |
331 | // | |
332 | Int_t *bin = new Int_t[fNVar]; | |
333 | GetBinIndex(index, bin); | |
334 | for(Int_t i=0;i<fNVar;i++)fIndex[i]=bin[i]+1; | |
335 | SetElement(fIndex,val); | |
336 | delete [] bin; | |
337 | } | |
338 | //____________________________________________________________________ | |
339 | void AliCFGridSparse::SetElement(Int_t *bin, Float_t val) | |
340 | { | |
341 | // | |
342 | // Sets grid element of bin indeces bin to val | |
343 | // | |
344 | fData->SetBinContent(bin,val); | |
345 | } | |
346 | //____________________________________________________________________ | |
347 | void AliCFGridSparse::SetElement(Double_t *var, Float_t val) | |
348 | { | |
349 | // | |
350 | // Set the content in a bin to value val corresponding to a set of input variables | |
351 | // | |
352 | Long_t index=fData->GetBin(var); //THnSparse index: allocate the cell | |
353 | Int_t *bin = new Int_t[fNVar]; | |
354 | fData->GetBinContent(index,bin); //trick to access the array of bins | |
355 | fData->SetBinContent(bin,val); | |
356 | delete [] bin; | |
357 | ||
358 | } | |
359 | ||
360 | //____________________________________________________________________ | |
361 | void AliCFGridSparse::SetElementError(Int_t index, Float_t val) | |
362 | { | |
363 | // | |
364 | // Sets grid element iel error to val (linear indexing) in AliCFFrame | |
365 | // | |
366 | Int_t *bin = new Int_t[fNVar]; | |
367 | GetBinIndex(index, bin); | |
368 | for(Int_t i=0;i<fNVar;i++)fIndex[i]=bin[i]+1; | |
369 | SetElementError(fIndex,val); | |
370 | delete [] bin; | |
371 | } | |
372 | //____________________________________________________________________ | |
373 | void AliCFGridSparse::SetElementError(Int_t *bin, Float_t val) | |
374 | { | |
375 | // | |
376 | // Sets grid element error of bin indeces bin to val | |
377 | // | |
378 | fData->SetBinError(bin,val); | |
379 | } | |
380 | //____________________________________________________________________ | |
381 | void AliCFGridSparse::SetElementError(Double_t *var, Float_t val) | |
382 | { | |
383 | // | |
384 | // Set the error in a bin to value val corresponding to a set of input variables | |
385 | // | |
386 | Long_t index=fData->GetBin(var); //THnSparse index | |
387 | Int_t *bin = new Int_t[fNVar]; | |
388 | fData->GetBinContent(index,bin); //trick to access the array of bins | |
389 | fData->SetBinError(bin,val); | |
390 | delete [] bin; | |
391 | } | |
392 | ||
393 | //____________________________________________________________________ | |
394 | void AliCFGridSparse::SumW2() | |
395 | { | |
396 | // | |
397 | //set calculation of the squared sum of the weighted entries | |
398 | // | |
399 | if(!fSumW2){ | |
400 | fData->CalculateErrors(kTRUE); | |
401 | } | |
402 | ||
403 | fSumW2=kTRUE; | |
404 | } | |
405 | ||
406 | //____________________________________________________________________ | |
407 | void AliCFGridSparse::Add(AliCFVGrid* aGrid, Double_t c) | |
408 | { | |
409 | // | |
410 | //add aGrid to the current one | |
411 | // | |
412 | ||
413 | ||
414 | if(aGrid->GetNVar()!=fNVar){ | |
415 | AliInfo("Different number of variables, cannot add the grids"); | |
416 | return; | |
417 | } | |
418 | if(aGrid->GetNDim()!=fNDim){ | |
419 | AliInfo("Different number of dimensions, cannot add the grids!"); | |
420 | return; | |
421 | } | |
422 | ||
423 | if(!fSumW2 && aGrid->GetSumW2())SumW2(); | |
424 | ||
425 | ||
426 | fData->Add(((AliCFGridSparse*)aGrid)->GetGrid(),c); | |
427 | ||
428 | } | |
429 | ||
430 | //____________________________________________________________________ | |
431 | void AliCFGridSparse::Add(AliCFVGrid* aGrid1, AliCFVGrid* aGrid2, Double_t c1,Double_t c2) | |
432 | { | |
433 | // | |
434 | //Add aGrid1 and aGrid2 and deposit the result into the current one | |
435 | // | |
436 | ||
437 | if(fNVar!=aGrid1->GetNVar()|| fNVar!=aGrid2->GetNVar()){ | |
438 | AliInfo("Different number of variables, cannot add the grids"); | |
439 | return; | |
440 | } | |
441 | if(fNDim!=aGrid1->GetNDim()|| fNDim!=aGrid2->GetNDim()){ | |
442 | AliInfo("Different number of dimensions, cannot add the grids!"); | |
443 | return; | |
444 | } | |
445 | ||
446 | if(!fSumW2 && (aGrid1->GetSumW2() || aGrid2->GetSumW2()))SumW2(); | |
447 | ||
448 | ||
449 | fData->Reset(); | |
450 | fData->Add(((AliCFGridSparse*)aGrid1)->GetGrid(),c1); | |
451 | fData->Add(((AliCFGridSparse*)aGrid2)->GetGrid(),c2); | |
452 | ||
453 | } | |
454 | ||
455 | //____________________________________________________________________ | |
456 | void AliCFGridSparse::Multiply(AliCFVGrid* aGrid, Double_t c) | |
457 | { | |
458 | // | |
459 | // Multiply aGrid to the current one | |
460 | // | |
461 | ||
462 | ||
463 | if(aGrid->GetNVar()!=fNVar){ | |
464 | AliInfo("Different number of variables, cannot multiply the grids"); | |
465 | return; | |
466 | } | |
467 | if(aGrid->GetNDim()!=fNDim){ | |
468 | AliInfo("Different number of dimensions, cannot multiply the grids!"); | |
469 | return; | |
470 | } | |
471 | ||
472 | if(!fSumW2 && aGrid->GetSumW2())SumW2(); | |
473 | ||
474 | THnSparse *h= ((AliCFGridSparse*)aGrid)->GetGrid(); | |
475 | ||
476 | fData->Multiply(h); | |
477 | fData->Scale(c); | |
478 | ||
479 | } | |
480 | ||
481 | //____________________________________________________________________ | |
482 | void AliCFGridSparse::Multiply(AliCFVGrid* aGrid1, AliCFVGrid* aGrid2, Double_t c1,Double_t c2) | |
483 | { | |
484 | // | |
485 | //Multiply aGrid1 and aGrid2 and deposit the result into the current one | |
486 | // | |
487 | ||
488 | if(fNVar!=aGrid1->GetNVar()|| fNVar!=aGrid2->GetNVar()){ | |
489 | AliInfo("Different number of variables, cannot multiply the grids"); | |
490 | return; | |
491 | } | |
492 | if(fNDim!=aGrid1->GetNDim()|| fNDim!=aGrid2->GetNDim()){ | |
493 | AliInfo("Different number of dimensions, cannot multiply the grids!"); | |
494 | return; | |
495 | } | |
496 | ||
497 | if(!fSumW2 && (aGrid1->GetSumW2() || aGrid2->GetSumW2()))SumW2(); | |
498 | ||
499 | ||
500 | fData->Reset(); | |
501 | THnSparse *h1= ((AliCFGridSparse*)aGrid1)->GetGrid(); | |
502 | THnSparse *h2= ((AliCFGridSparse*)aGrid2)->GetGrid(); | |
503 | h2->Multiply(h1); | |
504 | h2->Scale(c1*c2); | |
505 | fData->Add(h2); | |
506 | } | |
507 | ||
508 | ||
509 | ||
510 | //____________________________________________________________________ | |
511 | void AliCFGridSparse::Divide(AliCFVGrid* aGrid, Double_t c) | |
512 | { | |
513 | // | |
514 | // Divide aGrid to the current one | |
515 | // | |
516 | ||
517 | ||
518 | if(aGrid->GetNVar()!=fNVar){ | |
519 | AliInfo("Different number of variables, cannot divide the grids"); | |
520 | return; | |
521 | } | |
522 | if(aGrid->GetNDim()!=fNDim){ | |
523 | AliInfo("Different number of dimensions, cannot divide the grids!"); | |
524 | return; | |
525 | } | |
526 | ||
527 | if(!fSumW2 && aGrid->GetSumW2())SumW2(); | |
528 | ||
529 | THnSparse *h= ((AliCFGridSparse*)aGrid)->GetGrid(); | |
530 | ||
531 | fData->Divide(h); | |
532 | fData->Scale(c); | |
533 | ||
534 | } | |
535 | ||
536 | //____________________________________________________________________ | |
537 | void AliCFGridSparse::Divide(AliCFVGrid* aGrid1, AliCFVGrid* aGrid2, Double_t c1,Double_t c2, Option_t *option) | |
538 | { | |
539 | // | |
540 | //Divide aGrid1 and aGrid2 and deposit the result into the current one | |
541 | //bynomial errors are supported | |
542 | // | |
543 | ||
544 | if(fNVar!=aGrid1->GetNVar()|| fNVar!=aGrid2->GetNVar()){ | |
545 | AliInfo("Different number of variables, cannot divide the grids"); | |
546 | return; | |
547 | } | |
548 | if(fNDim!=aGrid1->GetNDim()|| fNDim!=aGrid2->GetNDim()){ | |
549 | AliInfo("Different number of dimensions, cannot divide the grids!"); | |
550 | return; | |
551 | } | |
552 | ||
553 | if(!fSumW2 && (aGrid1->GetSumW2() || aGrid2->GetSumW2()))SumW2(); | |
554 | ||
555 | ||
556 | THnSparse *h1= ((AliCFGridSparse*)aGrid1)->GetGrid(); | |
557 | THnSparse *h2= ((AliCFGridSparse*)aGrid2)->GetGrid(); | |
558 | fData->Divide(h1,h2,c1,c2,option); | |
559 | } | |
560 | ||
561 | ||
7411edfd | 562 | //____________________________________________________________________ |
563 | void AliCFGridSparse::Rebin(const Int_t* group) | |
564 | { | |
565 | // | |
566 | // rebin the grid according to Rebin() as in THnSparse | |
567 | // Please notice that the original number of bins on | |
568 | // a given axis has to be divisible by the rebin group. | |
569 | // | |
570 | ||
571 | for(Int_t i=0;i<fNVar;i++){ | |
572 | if(group[i]!=1)AliInfo(Form(" merging bins along dimension %i in groups of %i bins", i,group[i])); | |
573 | } | |
574 | ||
575 | THnSparse *rebinned =fData->Rebin(group); | |
576 | fData->Reset(); | |
577 | fData = rebinned; | |
578 | ||
579 | //redefine the needed stuff | |
580 | ||
581 | Int_t ndimTot=1; | |
582 | Int_t nbinTot=0; | |
583 | ||
584 | //number of bins in each dimension, auxiliary variables | |
585 | ||
586 | for(Int_t ivar=0;ivar<fNVar;ivar++){ | |
587 | Int_t nbins = fData->GetAxis(ivar)->GetNbins(); | |
588 | fNVarBins[ivar]=nbins; | |
589 | ndimTot*=fNVarBins[ivar]; | |
590 | nbinTot+=(fNVarBins[ivar]+1); | |
591 | Int_t offset=0; | |
592 | for(Int_t i =0;i<ivar;i++)offset+=(fNVarBins[i]+1); | |
593 | fOffset[ivar]=offset; | |
594 | Int_t prod=1; | |
595 | for(Int_t i=0;i<ivar;i++)prod*=fNVarBins[i]; | |
596 | fProduct[ivar]=prod; | |
597 | } | |
598 | ||
599 | fNDim=ndimTot; | |
600 | ||
601 | //now the array of bin limits | |
602 | ||
603 | delete fVarBinLimits; | |
604 | fNVarBinLimits=nbinTot; | |
605 | fVarBinLimits=new Double_t[fNVarBinLimits]; | |
606 | ||
607 | for(Int_t ivar=0;ivar<fNVar;ivar++){ | |
608 | Double_t low = fData->GetAxis(ivar)->GetXmin(); | |
609 | Double_t high = fData->GetAxis(ivar)->GetXmax(); | |
610 | const TArrayD *xbins = fData->GetAxis(ivar)->GetXbins(); | |
611 | if (xbins->fN == 0){ | |
612 | for(Int_t ibin=0;ibin<=fNVarBins[ivar];ibin++){ | |
613 | fVarBinLimits[ibin+fOffset[ivar]] = low + ibin*(high-low)/((Double_t) fNVarBins[ivar]); | |
614 | } | |
615 | } | |
616 | else{ | |
617 | ||
618 | for(Int_t ibin=0;ibin<=fNVarBins[ivar];ibin++) { | |
619 | fVarBinLimits[ibin+fOffset[ivar]] = xbins->At(ibin); | |
620 | } | |
621 | } | |
622 | } | |
623 | ||
624 | } | |
db6722a5 | 625 | //____________________________________________________________________ |
626 | void AliCFGridSparse::Copy(TObject& c) const | |
627 | { | |
628 | // | |
629 | // copy function | |
630 | // | |
631 | AliCFGridSparse& target = (AliCFGridSparse &) c; | |
632 | ||
633 | if(fData)target.fData = fData; | |
634 | } | |
635 | ||
c8df672e | 636 | //____________________________________________________________________ |
637 | TH1D* AliCFGridSparse::Slice(Int_t iVar, Double_t *varMin, Double_t *varMax) const | |
638 | { | |
639 | // | |
640 | // return a slice (1D-projection) on variable iVar while axis ranges are defined with varMin,varMax | |
641 | // arrays varMin and varMax contain the min and max values of each variable. | |
642 | // therefore varMin and varMax must have their dimensions equal to fNVar | |
643 | // | |
644 | ||
645 | THnSparse* clone = (THnSparse*)fData->Clone(); | |
646 | for (Int_t iAxis=0; iAxis<fNVar; iAxis++) { | |
647 | clone->GetAxis(iAxis)->SetRangeUser(varMin[iAxis],varMax[iAxis]); | |
648 | } | |
649 | return clone->Projection(iVar); | |
650 | } | |
651 | ||
652 | //____________________________________________________________________ | |
653 | TH2D* AliCFGridSparse::Slice(Int_t iVar1, Int_t iVar2, Double_t *varMin, Double_t *varMax) const | |
654 | { | |
655 | // | |
656 | // return a slice (2D-projection) on variables iVar1 and iVar2 while axis ranges are defined with varMin,varMax | |
657 | // arrays varMin and varMax contain the min and max values of each variable. | |
658 | // therefore varMin and varMax must have their dimensions equal to fNVar | |
659 | // | |
660 | ||
661 | THnSparse* clone = (THnSparse*)fData->Clone(); | |
662 | for (Int_t iAxis=0; iAxis<fNVar; iAxis++) { | |
663 | clone->GetAxis(iAxis)->SetRangeUser(varMin[iAxis],varMax[iAxis]); | |
664 | } | |
665 | return clone->Projection(iVar1,iVar2); | |
666 | } | |
667 | ||
668 | //____________________________________________________________________ | |
669 | TH3D* AliCFGridSparse::Slice(Int_t iVar1, Int_t iVar2, Int_t iVar3, Double_t *varMin, Double_t *varMax) const | |
670 | { | |
671 | // | |
672 | // return a slice (3D-projection) on variables iVar1, iVar2 and iVar3 while axis ranges are defined with varMin,varMax | |
673 | // arrays varMin and varMax contain the min and max values of each variable. | |
674 | // therefore varMin and varMax must have their dimensions equal to fNVar | |
675 | // | |
676 | ||
677 | THnSparse* clone = (THnSparse*)fData->Clone(); | |
678 | for (Int_t iAxis=0; iAxis<fNVar; iAxis++) { | |
679 | clone->GetAxis(iAxis)->SetRangeUser(varMin[iAxis],varMax[iAxis]); | |
680 | } | |
681 | return clone->Projection(iVar1,iVar2,iVar3); | |
682 | } | |
683 | ||
9105291d | 684 | //____________________________________________________________________ |
685 | void AliCFGridSparse::SetRangeUser(Int_t iVar, Double_t varMin, Double_t varMax) { | |
686 | // | |
687 | // set range of axis iVar. | |
688 | // | |
689 | fData->GetAxis(iVar)->SetRangeUser(varMin,varMax); | |
690 | AliWarning(Form("THnSparse axis %d range has been modified",iVar)); | |
691 | } | |
692 | ||
c8df672e | 693 | //____________________________________________________________________ |
694 | void AliCFGridSparse::SetRangeUser(Double_t *varMin, Double_t *varMax) { | |
695 | // | |
696 | // set range of every axis. varMin and varMax must be of dimension fNVar | |
697 | // | |
698 | for (Int_t iAxis=0; iAxis<fNVar ; iAxis++) { // set new range for every axis | |
9105291d | 699 | SetRangeUser(iAxis,varMin[iAxis],varMax[iAxis]); |
c8df672e | 700 | } |
9105291d | 701 | AliWarning("THnSparse axes ranges have been modified"); |
702 | } | |
703 | ||
704 | //____________________________________________________________________ | |
705 | void AliCFGridSparse::UseAxisRange(Bool_t b) const { | |
706 | for (Int_t iAxis=0; iAxis<fNVar; iAxis++) fData->GetAxis(iAxis)->SetBit(TAxis::kAxisRange,b); | |
c8df672e | 707 | } |