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12ca5da1 | 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 | /////////////////////////////////////////////////////////////////////////////// | |
18 | // // | |
dcf3a564 | 19 | // TPC cluster error, shape and charge parameterization as function |
20 | // of drift length, and inclination angle // | |
21 | // | |
22 | // Following notation is used in following | |
23 | // Int_t dim 0 - y direction | |
24 | // 1 - z direction | |
25 | // | |
26 | // Int_t type 0 - short pads | |
27 | // 1 - medium pads | |
28 | // 2 - long pads | |
29 | // Float_t z - drift length | |
30 | // | |
d028aade | 31 | // Float_t angle - tangent of inclination angle at given dimension |
dcf3a564 | 32 | // |
33 | // Implemented parameterization | |
34 | // | |
35 | // | |
36 | // 1. Resolution as function of drift length and inclination angle | |
37 | // 1.a) GetError0(Int_t dim, Int_t type, Float_t z, Float_t angle) | |
38 | // Simple error parameterization as derived from analytical formula | |
39 | // only linear term in drift length and angle^2 | |
40 | // The formula is valid only with precission +-5% | |
41 | // Separate parameterization for differnt pad geometry | |
42 | // 1.b) GetError0Par | |
43 | // Parabolic term correction - better precision | |
44 | // | |
45 | // 1.c) GetError1 - JUST FOR Study | |
46 | // Similar to GetError1 | |
47 | // The angular and diffusion effect is scaling with pad length | |
48 | // common parameterization for different pad length | |
49 | // | |
96305e49 | 50 | // 2. Error parameterization using charge |
51 | // 2.a) GetErrorQ | |
52 | // GetError0+ | |
53 | // adding 1/Q component to diffusion and angluar part | |
54 | // 2.b) GetErrorQPar | |
55 | // GetError0Par+ | |
56 | // adding 1/Q component to diffusion and angluar part | |
57 | // 2.c) GetErrorQParScaled - Just for study | |
58 | // One parameterization for all pad shapes | |
59 | // Smaller precission as previous one | |
dcf3a564 | 60 | // |
96305e49 | 61 | // |
d028aade | 62 | // Example how to retrieve the paramterization: |
63 | /* | |
d028aade | 64 | AliCDBManager::Instance()->SetDefaultStorage("local://$ALICE_ROOT"); |
236a0d03 | 65 | AliCDBManager::Instance()->SetRun(0) |
d028aade | 66 | AliTPCClusterParam * param = AliTPCcalibDB::Instance()->GetClusterParam(); |
67 | ||
68 | // | |
69 | // | |
70 | AliTPCClusterParam::SetInstance(param); | |
71 | TF1 f1("f1","AliTPCClusterParam::SGetError0Par(1,0,x,0)",0,250); | |
d028aade | 72 | */ |
236a0d03 | 73 | |
74 | // EXAMPLE hot to create parameterization | |
75 | /* | |
76 | // Note resol is the resolution tree created by AliTPCcalibTracks | |
77 | // | |
78 | AliTPCClusterParam *param = new AliTPCClusterParam; | |
79 | param->FitData(Resol); | |
80 | AliTPCClusterParam::SetInstance(param); | |
81 | ||
82 | */ | |
83 | ||
96305e49 | 84 | // |
d028aade | 85 | // // |
12ca5da1 | 86 | /////////////////////////////////////////////////////////////////////////////// |
87 | #include "AliTPCClusterParam.h" | |
88 | #include "TMath.h" | |
89 | #include "TFile.h" | |
90 | #include "TTree.h" | |
91 | #include <TVectorF.h> | |
92 | #include <TLinearFitter.h> | |
93 | #include <TH1F.h> | |
94 | #include <TProfile2D.h> | |
0a65832b | 95 | #include <TVectorD.h> |
96 | #include <TObjArray.h> | |
12ca5da1 | 97 | |
98 | ClassImp(AliTPCClusterParam) | |
99 | ||
100 | ||
101 | AliTPCClusterParam* AliTPCClusterParam::fgInstance = 0; | |
102 | ||
103 | ||
104 | /* | |
105 | Example usage fitting parameterization: | |
106 | TFile fres("resol.root"); //tree with resolution and shape | |
107 | TTree * treeRes =(TTree*)fres.Get("Resol"); | |
108 | ||
109 | AliTPCClusterParam param; | |
110 | param.SetInstance(¶m); | |
111 | param.FitResol(treeRes); | |
112 | param.FitRMS(treeRes); | |
113 | TFile fparam("TPCClusterParam.root","recreate"); | |
114 | param.Write("Param"); | |
115 | // | |
116 | // | |
117 | TFile fparam("TPCClusterParam.root"); | |
118 | AliTPCClusterParam *param2 = (AliTPCClusterParam *) fparam.Get("Param"); | |
119 | param2->SetInstance(param2); | |
120 | param2->Test(treeRes); | |
121 | ||
122 | ||
123 | treeRes->Draw("(Resol-AliTPCClusterParam::SGetError0(Dim,Pad,Zm,AngleM))/Resol","Dim==0&&QMean<0") | |
124 | ||
125 | */ | |
126 | ||
127 | ||
128 | ||
129 | ||
130 | //_ singleton implementation __________________________________________________ | |
131 | AliTPCClusterParam* AliTPCClusterParam::Instance() | |
132 | { | |
133 | // | |
134 | // Singleton implementation | |
135 | // Returns an instance of this class, it is created if neccessary | |
136 | // | |
137 | if (fgInstance == 0){ | |
138 | fgInstance = new AliTPCClusterParam(); | |
139 | } | |
140 | return fgInstance; | |
141 | } | |
142 | ||
143 | ||
f1c2a4a3 | 144 | AliTPCClusterParam::AliTPCClusterParam(): |
145 | TObject(), | |
38caa778 | 146 | fRatio(0), |
b17540e4 | 147 | fQNorm(0), |
148 | fQpadTnorm(0), // q pad normalization - Total charge | |
149 | fQpadMnorm(0) // q pad normalization - Max charge | |
150 | // | |
f1c2a4a3 | 151 | { |
152 | // | |
153 | // Default constructor | |
154 | // | |
b17540e4 | 155 | fPosQTnorm[0] = 0; fPosQTnorm[1] = 0; fPosQTnorm[2] = 0; |
156 | fPosQMnorm[0] = 0; fPosQMnorm[1] = 0; fPosQMnorm[2] = 0; | |
2e5bcb67 | 157 | // |
158 | fPosYcor[0] = 0; fPosYcor[1] = 0; fPosYcor[2] = 0; | |
159 | fPosZcor[0] = 0; fPosZcor[1] = 0; fPosZcor[2] = 0; | |
f1c2a4a3 | 160 | } |
38caa778 | 161 | |
162 | AliTPCClusterParam::AliTPCClusterParam(const AliTPCClusterParam& param): | |
163 | TObject(param), | |
164 | fRatio(0), | |
b17540e4 | 165 | fQNorm(0), |
166 | fQpadTnorm(new TVectorD(*(param.fQpadTnorm))), // q pad normalization - Total charge | |
167 | fQpadMnorm(new TVectorD(*(param.fQpadMnorm))) // q pad normalization - Max charge | |
168 | ||
38caa778 | 169 | { |
170 | // | |
171 | // copy constructor | |
172 | // | |
173 | memcpy(this, ¶m,sizeof(AliTPCClusterParam)); | |
174 | if (param.fQNorm) fQNorm = (TObjArray*) param.fQNorm->Clone(); | |
b17540e4 | 175 | // |
176 | if (param.fPosQTnorm[0]){ | |
177 | fPosQTnorm[0] = new TVectorD(*(param.fPosQTnorm[0])); | |
178 | fPosQTnorm[1] = new TVectorD(*(param.fPosQTnorm[1])); | |
179 | fPosQTnorm[2] = new TVectorD(*(param.fPosQTnorm[2])); | |
180 | // | |
181 | fPosQMnorm[0] = new TVectorD(*(param.fPosQMnorm[0])); | |
182 | fPosQMnorm[1] = new TVectorD(*(param.fPosQMnorm[1])); | |
183 | fPosQMnorm[2] = new TVectorD(*(param.fPosQMnorm[2])); | |
184 | } | |
2e5bcb67 | 185 | if (param.fPosYcor[0]){ |
186 | fPosYcor[0] = new TVectorD(*(param.fPosYcor[0])); | |
187 | fPosYcor[1] = new TVectorD(*(param.fPosYcor[1])); | |
188 | fPosYcor[2] = new TVectorD(*(param.fPosYcor[2])); | |
189 | // | |
190 | fPosZcor[0] = new TVectorD(*(param.fPosZcor[0])); | |
191 | fPosZcor[1] = new TVectorD(*(param.fPosZcor[1])); | |
192 | fPosZcor[2] = new TVectorD(*(param.fPosZcor[2])); | |
193 | } | |
194 | ||
38caa778 | 195 | } |
196 | ||
b17540e4 | 197 | |
38caa778 | 198 | AliTPCClusterParam & AliTPCClusterParam::operator=(const AliTPCClusterParam& param){ |
199 | // | |
200 | // Assignment operator | |
201 | // | |
202 | if (this != ¶m) { | |
203 | memcpy(this, ¶m,sizeof(AliTPCClusterParam)); | |
204 | if (param.fQNorm) fQNorm = (TObjArray*) param.fQNorm->Clone(); | |
b17540e4 | 205 | if (param.fPosQTnorm[0]){ |
206 | fPosQTnorm[0] = new TVectorD(*(param.fPosQTnorm[0])); | |
207 | fPosQTnorm[1] = new TVectorD(*(param.fPosQTnorm[1])); | |
208 | fPosQTnorm[2] = new TVectorD(*(param.fPosQTnorm[2])); | |
209 | // | |
210 | fPosQMnorm[0] = new TVectorD(*(param.fPosQMnorm[0])); | |
211 | fPosQMnorm[1] = new TVectorD(*(param.fPosQMnorm[1])); | |
212 | fPosQMnorm[2] = new TVectorD(*(param.fPosQMnorm[2])); | |
213 | } | |
2e5bcb67 | 214 | if (param.fPosYcor[0]){ |
215 | fPosYcor[0] = new TVectorD(*(param.fPosYcor[0])); | |
216 | fPosYcor[1] = new TVectorD(*(param.fPosYcor[1])); | |
217 | fPosYcor[2] = new TVectorD(*(param.fPosYcor[2])); | |
218 | // | |
219 | fPosZcor[0] = new TVectorD(*(param.fPosZcor[0])); | |
220 | fPosZcor[1] = new TVectorD(*(param.fPosZcor[1])); | |
221 | fPosZcor[2] = new TVectorD(*(param.fPosZcor[2])); | |
222 | } | |
38caa778 | 223 | } |
224 | return *this; | |
225 | } | |
226 | ||
227 | ||
f1c2a4a3 | 228 | AliTPCClusterParam::~AliTPCClusterParam(){ |
229 | // | |
230 | // destructor | |
231 | // | |
232 | if (fQNorm) fQNorm->Delete(); | |
233 | delete fQNorm; | |
b17540e4 | 234 | if (fPosQTnorm[0]){ |
235 | delete fPosQTnorm[0]; | |
236 | delete fPosQTnorm[1]; | |
237 | delete fPosQTnorm[2]; | |
238 | // | |
239 | delete fPosQMnorm[0]; | |
240 | delete fPosQMnorm[1]; | |
241 | delete fPosQMnorm[2]; | |
242 | } | |
2e5bcb67 | 243 | if (fPosYcor[0]){ |
244 | delete fPosYcor[0]; | |
245 | delete fPosYcor[1]; | |
246 | delete fPosYcor[2]; | |
247 | // | |
248 | delete fPosZcor[0]; | |
249 | delete fPosZcor[1]; | |
250 | delete fPosZcor[2]; | |
251 | } | |
f1c2a4a3 | 252 | } |
12ca5da1 | 253 | |
254 | ||
255 | void AliTPCClusterParam::FitResol0(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
256 | // | |
257 | // Fit z - angular dependence of resolution | |
258 | // | |
259 | // Int_t dim=0, type=0; | |
260 | char varVal[100]; | |
261 | sprintf(varVal,"Resol:AngleM:Zm"); | |
262 | char varErr[100]; | |
263 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
264 | char varCut[100]; | |
265 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean<0",dim,type); | |
266 | // | |
267 | Int_t entries = tree->Draw(varVal,varCut); | |
268 | Float_t px[10000], py[10000], pz[10000]; | |
269 | Float_t ex[10000], ey[10000], ez[10000]; | |
270 | // | |
271 | tree->Draw(varErr,varCut); | |
272 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
273 | ex[ipoint]= tree->GetV3()[ipoint]; | |
274 | ey[ipoint]= tree->GetV2()[ipoint]; | |
275 | ez[ipoint]= tree->GetV1()[ipoint]; | |
276 | } | |
277 | tree->Draw(varVal,varCut); | |
278 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
279 | px[ipoint]= tree->GetV3()[ipoint]; | |
280 | py[ipoint]= tree->GetV2()[ipoint]; | |
281 | pz[ipoint]= tree->GetV1()[ipoint]; | |
282 | } | |
283 | ||
284 | // | |
285 | TLinearFitter fitter(3,"hyp2"); | |
286 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
287 | Float_t val = pz[ipoint]*pz[ipoint]; | |
288 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
289 | Double_t x[2]; | |
290 | x[0] = px[ipoint]; | |
291 | x[1] = py[ipoint]*py[ipoint]; | |
292 | fitter.AddPoint(x,val,err); | |
293 | } | |
294 | fitter.Eval(); | |
295 | TVectorD param(3); | |
296 | fitter.GetParameters(param); | |
297 | param0[0] = param[0]; | |
298 | param0[1] = param[1]; | |
299 | param0[2] = param[2]; | |
300 | Float_t chi2 = fitter.GetChisquare()/entries; | |
301 | param0[3] = chi2; | |
302 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
303 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
304 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
305 | } | |
306 | ||
307 | ||
308 | void AliTPCClusterParam::FitResol0Par(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
309 | // | |
310 | // Fit z - angular dependence of resolution | |
311 | // | |
312 | // Int_t dim=0, type=0; | |
313 | char varVal[100]; | |
314 | sprintf(varVal,"Resol:AngleM:Zm"); | |
315 | char varErr[100]; | |
316 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
317 | char varCut[100]; | |
318 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean<0",dim,type); | |
319 | // | |
320 | Int_t entries = tree->Draw(varVal,varCut); | |
321 | Float_t px[10000], py[10000], pz[10000]; | |
322 | Float_t ex[10000], ey[10000], ez[10000]; | |
323 | // | |
324 | tree->Draw(varErr,varCut); | |
325 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
326 | ex[ipoint]= tree->GetV3()[ipoint]; | |
327 | ey[ipoint]= tree->GetV2()[ipoint]; | |
328 | ez[ipoint]= tree->GetV1()[ipoint]; | |
329 | } | |
330 | tree->Draw(varVal,varCut); | |
331 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
332 | px[ipoint]= tree->GetV3()[ipoint]; | |
333 | py[ipoint]= tree->GetV2()[ipoint]; | |
334 | pz[ipoint]= tree->GetV1()[ipoint]; | |
335 | } | |
336 | ||
337 | // | |
338 | TLinearFitter fitter(6,"hyp5"); | |
339 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
340 | Float_t val = pz[ipoint]*pz[ipoint]; | |
341 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
342 | Double_t x[6]; | |
343 | x[0] = px[ipoint]; | |
344 | x[1] = py[ipoint]*py[ipoint]; | |
345 | x[2] = x[0]*x[0]; | |
346 | x[3] = x[1]*x[1]; | |
347 | x[4] = x[0]*x[1]; | |
348 | fitter.AddPoint(x,val,err); | |
349 | } | |
350 | fitter.Eval(); | |
351 | TVectorD param(6); | |
352 | fitter.GetParameters(param); | |
353 | param0[0] = param[0]; | |
354 | param0[1] = param[1]; | |
355 | param0[2] = param[2]; | |
356 | param0[3] = param[3]; | |
357 | param0[4] = param[4]; | |
358 | param0[5] = param[5]; | |
359 | Float_t chi2 = fitter.GetChisquare()/entries; | |
360 | param0[6] = chi2; | |
361 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
362 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
363 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
364 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
365 | error[4] = (fitter.GetParError(4)*TMath::Sqrt(chi2)); | |
366 | error[5] = (fitter.GetParError(5)*TMath::Sqrt(chi2)); | |
367 | } | |
368 | ||
369 | ||
370 | ||
371 | ||
372 | ||
373 | void AliTPCClusterParam::FitResol1(TTree * tree, Int_t dim, Float_t *param0, Float_t *error){ | |
374 | // | |
375 | // Fit z - angular dependence of resolution - pad length scaling | |
376 | // | |
377 | // Int_t dim=0, type=0; | |
378 | char varVal[100]; | |
379 | sprintf(varVal,"Resol:AngleM*sqrt(Length):Zm/Length"); | |
380 | char varErr[100]; | |
381 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
382 | char varCut[100]; | |
383 | sprintf(varCut,"Dim==%d&&QMean<0",dim); | |
384 | // | |
385 | Int_t entries = tree->Draw(varVal,varCut); | |
386 | Float_t px[10000], py[10000], pz[10000]; | |
387 | Float_t ex[10000], ey[10000], ez[10000]; | |
388 | // | |
389 | tree->Draw(varErr,varCut); | |
390 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
391 | ex[ipoint]= tree->GetV3()[ipoint]; | |
392 | ey[ipoint]= tree->GetV2()[ipoint]; | |
393 | ez[ipoint]= tree->GetV1()[ipoint]; | |
394 | } | |
395 | tree->Draw(varVal,varCut); | |
396 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
397 | px[ipoint]= tree->GetV3()[ipoint]; | |
398 | py[ipoint]= tree->GetV2()[ipoint]; | |
399 | pz[ipoint]= tree->GetV1()[ipoint]; | |
400 | } | |
401 | ||
402 | // | |
403 | TLinearFitter fitter(3,"hyp2"); | |
404 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
405 | Float_t val = pz[ipoint]*pz[ipoint]; | |
406 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
407 | Double_t x[2]; | |
408 | x[0] = px[ipoint]; | |
409 | x[1] = py[ipoint]*py[ipoint]; | |
410 | fitter.AddPoint(x,val,err); | |
411 | } | |
412 | fitter.Eval(); | |
413 | TVectorD param(3); | |
414 | fitter.GetParameters(param); | |
415 | param0[0] = param[0]; | |
416 | param0[1] = param[1]; | |
417 | param0[2] = param[2]; | |
418 | Float_t chi2 = fitter.GetChisquare()/entries; | |
419 | param0[3] = chi2; | |
420 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
421 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
422 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
423 | } | |
424 | ||
425 | void AliTPCClusterParam::FitResolQ(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
426 | // | |
427 | // Fit z - angular dependence of resolution - Q scaling | |
428 | // | |
429 | // Int_t dim=0, type=0; | |
430 | char varVal[100]; | |
431 | sprintf(varVal,"Resol:AngleM/sqrt(QMean):Zm/QMean"); | |
432 | char varVal0[100]; | |
433 | sprintf(varVal0,"Resol:AngleM:Zm"); | |
434 | // | |
435 | char varErr[100]; | |
436 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
437 | char varCut[100]; | |
438 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean>0",dim,type); | |
439 | // | |
440 | Int_t entries = tree->Draw(varVal,varCut); | |
441 | Float_t px[20000], py[20000], pz[20000], pu[20000], pt[20000]; | |
442 | Float_t ex[20000], ey[20000], ez[20000]; | |
443 | // | |
444 | tree->Draw(varErr,varCut); | |
445 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
446 | ex[ipoint]= tree->GetV3()[ipoint]; | |
447 | ey[ipoint]= tree->GetV2()[ipoint]; | |
448 | ez[ipoint]= tree->GetV1()[ipoint]; | |
449 | } | |
450 | tree->Draw(varVal,varCut); | |
451 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
452 | px[ipoint]= tree->GetV3()[ipoint]; | |
453 | py[ipoint]= tree->GetV2()[ipoint]; | |
454 | pz[ipoint]= tree->GetV1()[ipoint]; | |
455 | } | |
456 | tree->Draw(varVal0,varCut); | |
457 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
458 | pu[ipoint]= tree->GetV3()[ipoint]; | |
459 | pt[ipoint]= tree->GetV2()[ipoint]; | |
460 | } | |
461 | ||
462 | // | |
463 | TLinearFitter fitter(5,"hyp4"); | |
464 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
465 | Float_t val = pz[ipoint]*pz[ipoint]; | |
466 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
467 | Double_t x[4]; | |
468 | x[0] = pu[ipoint]; | |
469 | x[1] = pt[ipoint]*pt[ipoint]; | |
470 | x[2] = px[ipoint]; | |
471 | x[3] = py[ipoint]*py[ipoint]; | |
472 | fitter.AddPoint(x,val,err); | |
473 | } | |
474 | ||
475 | fitter.Eval(); | |
476 | TVectorD param(5); | |
477 | fitter.GetParameters(param); | |
478 | param0[0] = param[0]; | |
479 | param0[1] = param[1]; | |
480 | param0[2] = param[2]; | |
481 | param0[3] = param[3]; | |
482 | param0[4] = param[4]; | |
483 | Float_t chi2 = fitter.GetChisquare()/entries; | |
484 | param0[5] = chi2; | |
485 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
486 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
487 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
488 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
489 | error[4] = (fitter.GetParError(4)*TMath::Sqrt(chi2)); | |
490 | } | |
491 | ||
492 | void AliTPCClusterParam::FitResolQPar(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
493 | // | |
494 | // Fit z - angular dependence of resolution - Q scaling - parabolic correction | |
495 | // | |
496 | // Int_t dim=0, type=0; | |
497 | char varVal[100]; | |
498 | sprintf(varVal,"Resol:AngleM/sqrt(QMean):Zm/QMean"); | |
499 | char varVal0[100]; | |
500 | sprintf(varVal0,"Resol:AngleM:Zm"); | |
501 | // | |
502 | char varErr[100]; | |
503 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
504 | char varCut[100]; | |
505 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean>0",dim,type); | |
506 | // | |
507 | Int_t entries = tree->Draw(varVal,varCut); | |
508 | Float_t px[20000], py[20000], pz[20000], pu[20000], pt[20000]; | |
509 | Float_t ex[20000], ey[20000], ez[20000]; | |
510 | // | |
511 | tree->Draw(varErr,varCut); | |
512 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
513 | ex[ipoint]= tree->GetV3()[ipoint]; | |
514 | ey[ipoint]= tree->GetV2()[ipoint]; | |
515 | ez[ipoint]= tree->GetV1()[ipoint]; | |
516 | } | |
517 | tree->Draw(varVal,varCut); | |
518 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
519 | px[ipoint]= tree->GetV3()[ipoint]; | |
520 | py[ipoint]= tree->GetV2()[ipoint]; | |
521 | pz[ipoint]= tree->GetV1()[ipoint]; | |
522 | } | |
523 | tree->Draw(varVal0,varCut); | |
524 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
525 | pu[ipoint]= tree->GetV3()[ipoint]; | |
526 | pt[ipoint]= tree->GetV2()[ipoint]; | |
527 | } | |
528 | ||
529 | // | |
530 | TLinearFitter fitter(8,"hyp7"); | |
531 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
532 | Float_t val = pz[ipoint]*pz[ipoint]; | |
533 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
534 | Double_t x[7]; | |
535 | x[0] = pu[ipoint]; | |
536 | x[1] = pt[ipoint]*pt[ipoint]; | |
537 | x[2] = x[0]*x[0]; | |
538 | x[3] = x[1]*x[1]; | |
539 | x[4] = x[0]*x[1]; | |
540 | x[5] = px[ipoint]; | |
541 | x[6] = py[ipoint]*py[ipoint]; | |
542 | // | |
543 | fitter.AddPoint(x,val,err); | |
544 | } | |
545 | ||
546 | fitter.Eval(); | |
547 | TVectorD param(8); | |
548 | fitter.GetParameters(param); | |
549 | param0[0] = param[0]; | |
550 | param0[1] = param[1]; | |
551 | param0[2] = param[2]; | |
552 | param0[3] = param[3]; | |
553 | param0[4] = param[4]; | |
554 | param0[5] = param[5]; | |
555 | param0[6] = param[6]; | |
556 | param0[7] = param[7]; | |
557 | ||
558 | Float_t chi2 = fitter.GetChisquare()/entries; | |
559 | param0[8] = chi2; | |
560 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
561 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
562 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
563 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
564 | error[4] = (fitter.GetParError(4)*TMath::Sqrt(chi2)); | |
565 | error[5] = (fitter.GetParError(5)*TMath::Sqrt(chi2)); | |
566 | error[6] = (fitter.GetParError(6)*TMath::Sqrt(chi2)); | |
567 | error[7] = (fitter.GetParError(7)*TMath::Sqrt(chi2)); | |
568 | } | |
569 | ||
570 | ||
571 | ||
572 | void AliTPCClusterParam::FitRMS0(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
573 | // | |
574 | // Fit z - angular dependence of resolution | |
575 | // | |
576 | // Int_t dim=0, type=0; | |
577 | char varVal[100]; | |
578 | sprintf(varVal,"RMSm:AngleM:Zm"); | |
579 | char varErr[100]; | |
580 | sprintf(varErr,"sqrt((1./(100.*sqrt(12.))^2)+RMSe0^2):AngleS:Zs"); | |
581 | char varCut[100]; | |
582 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean<0",dim,type); | |
583 | // | |
584 | Int_t entries = tree->Draw(varVal,varCut); | |
585 | Float_t px[10000], py[10000], pz[10000]; | |
586 | Float_t ex[10000], ey[10000], ez[10000]; | |
587 | // | |
588 | tree->Draw(varErr,varCut); | |
589 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
590 | ex[ipoint]= tree->GetV3()[ipoint]; | |
591 | ey[ipoint]= tree->GetV2()[ipoint]; | |
592 | ez[ipoint]= tree->GetV1()[ipoint]; | |
593 | } | |
594 | tree->Draw(varVal,varCut); | |
595 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
596 | px[ipoint]= tree->GetV3()[ipoint]; | |
597 | py[ipoint]= tree->GetV2()[ipoint]; | |
598 | pz[ipoint]= tree->GetV1()[ipoint]; | |
599 | } | |
600 | ||
601 | // | |
602 | TLinearFitter fitter(3,"hyp2"); | |
603 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
604 | Float_t val = pz[ipoint]*pz[ipoint]; | |
605 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
606 | Double_t x[2]; | |
607 | x[0] = px[ipoint]; | |
608 | x[1] = py[ipoint]*py[ipoint]; | |
609 | fitter.AddPoint(x,val,err); | |
610 | } | |
611 | fitter.Eval(); | |
612 | TVectorD param(3); | |
613 | fitter.GetParameters(param); | |
614 | param0[0] = param[0]; | |
615 | param0[1] = param[1]; | |
616 | param0[2] = param[2]; | |
617 | Float_t chi2 = fitter.GetChisquare()/entries; | |
618 | param0[3] = chi2; | |
619 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
620 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
621 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
622 | } | |
623 | ||
624 | void AliTPCClusterParam::FitRMS1(TTree * tree, Int_t dim, Float_t *param0, Float_t *error){ | |
625 | // | |
626 | // Fit z - angular dependence of resolution - pad length scaling | |
627 | // | |
628 | // Int_t dim=0, type=0; | |
629 | char varVal[100]; | |
630 | sprintf(varVal,"RMSm:AngleM*Length:Zm"); | |
631 | char varErr[100]; | |
632 | sprintf(varErr,"sqrt((1./(100.*sqrt(12.))^2)+RMSe0^2):AngleS:Pad"); | |
633 | char varCut[100]; | |
634 | sprintf(varCut,"Dim==%d&&QMean<0",dim); | |
635 | // | |
636 | Int_t entries = tree->Draw(varVal,varCut); | |
637 | Float_t px[10000], py[10000], pz[10000]; | |
638 | Float_t type[10000], ey[10000], ez[10000]; | |
639 | // | |
640 | tree->Draw(varErr,varCut); | |
641 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
642 | type[ipoint] = tree->GetV3()[ipoint]; | |
643 | ey[ipoint] = tree->GetV2()[ipoint]; | |
644 | ez[ipoint] = tree->GetV1()[ipoint]; | |
645 | } | |
646 | tree->Draw(varVal,varCut); | |
647 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
648 | px[ipoint]= tree->GetV3()[ipoint]; | |
649 | py[ipoint]= tree->GetV2()[ipoint]; | |
650 | pz[ipoint]= tree->GetV1()[ipoint]; | |
651 | } | |
652 | ||
653 | // | |
654 | TLinearFitter fitter(4,"hyp3"); | |
655 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
656 | Float_t val = pz[ipoint]*pz[ipoint]; | |
657 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
658 | Double_t x[3]; | |
659 | x[0] = (type[ipoint]<0.5)? 0.:1.; | |
660 | x[1] = px[ipoint]; | |
661 | x[2] = py[ipoint]*py[ipoint]; | |
662 | fitter.AddPoint(x,val,err); | |
663 | } | |
664 | fitter.Eval(); | |
665 | TVectorD param(4); | |
666 | fitter.GetParameters(param); | |
667 | param0[0] = param[0]; | |
668 | param0[1] = param[0]+param[1]; | |
669 | param0[2] = param[2]; | |
670 | param0[3] = param[3]; | |
671 | Float_t chi2 = fitter.GetChisquare()/entries; | |
672 | param0[4] = chi2; | |
673 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
674 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
675 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
676 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
677 | } | |
678 | ||
679 | void AliTPCClusterParam::FitRMSQ(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
680 | // | |
681 | // Fit z - angular dependence of resolution - Q scaling | |
682 | // | |
683 | // Int_t dim=0, type=0; | |
684 | char varVal[100]; | |
685 | sprintf(varVal,"RMSm:AngleM/sqrt(QMean):Zm/QMean"); | |
686 | char varVal0[100]; | |
687 | sprintf(varVal0,"RMSm:AngleM:Zm"); | |
688 | // | |
689 | char varErr[100]; | |
690 | sprintf(varErr,"sqrt((1./(100.*sqrt(12.))^2)+RMSe0^2):AngleS:Zs"); | |
691 | char varCut[100]; | |
692 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean>0",dim,type); | |
693 | // | |
694 | Int_t entries = tree->Draw(varVal,varCut); | |
695 | Float_t px[20000], py[20000], pz[20000], pu[20000], pt[20000]; | |
696 | Float_t ex[20000], ey[20000], ez[20000]; | |
697 | // | |
698 | tree->Draw(varErr,varCut); | |
699 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
700 | ex[ipoint]= tree->GetV3()[ipoint]; | |
701 | ey[ipoint]= tree->GetV2()[ipoint]; | |
702 | ez[ipoint]= tree->GetV1()[ipoint]; | |
703 | } | |
704 | tree->Draw(varVal,varCut); | |
705 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
706 | px[ipoint]= tree->GetV3()[ipoint]; | |
707 | py[ipoint]= tree->GetV2()[ipoint]; | |
708 | pz[ipoint]= tree->GetV1()[ipoint]; | |
709 | } | |
710 | tree->Draw(varVal0,varCut); | |
711 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
712 | pu[ipoint]= tree->GetV3()[ipoint]; | |
713 | pt[ipoint]= tree->GetV2()[ipoint]; | |
714 | } | |
715 | ||
716 | // | |
717 | TLinearFitter fitter(5,"hyp4"); | |
718 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
719 | Float_t val = pz[ipoint]*pz[ipoint]; | |
720 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
721 | Double_t x[4]; | |
722 | x[0] = pu[ipoint]; | |
723 | x[1] = pt[ipoint]*pt[ipoint]; | |
724 | x[2] = px[ipoint]; | |
725 | x[3] = py[ipoint]*py[ipoint]; | |
726 | fitter.AddPoint(x,val,err); | |
727 | } | |
728 | ||
729 | fitter.Eval(); | |
730 | TVectorD param(5); | |
731 | fitter.GetParameters(param); | |
732 | param0[0] = param[0]; | |
733 | param0[1] = param[1]; | |
734 | param0[2] = param[2]; | |
735 | param0[3] = param[3]; | |
736 | param0[4] = param[4]; | |
737 | Float_t chi2 = fitter.GetChisquare()/entries; | |
738 | param0[5] = chi2; | |
739 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
740 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
741 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
742 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
743 | error[4] = (fitter.GetParError(4)*TMath::Sqrt(chi2)); | |
744 | } | |
745 | ||
746 | ||
747 | void AliTPCClusterParam::FitRMSSigma(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t */*error*/){ | |
748 | // | |
749 | // Fit z - angular dependence of resolution - Q scaling | |
750 | // | |
751 | // Int_t dim=0, type=0; | |
752 | char varVal[100]; | |
753 | sprintf(varVal,"RMSs:RMSm"); | |
754 | // | |
755 | char varCut[100]; | |
756 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean<0",dim,type); | |
757 | // | |
758 | Int_t entries = tree->Draw(varVal,varCut); | |
759 | Float_t px[20000], py[20000]; | |
760 | // | |
761 | tree->Draw(varVal,varCut); | |
762 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
763 | px[ipoint]= tree->GetV2()[ipoint]; | |
764 | py[ipoint]= tree->GetV1()[ipoint]; | |
765 | } | |
766 | TLinearFitter fitter(2,"pol1"); | |
767 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
768 | Float_t val = py[ipoint]; | |
769 | Float_t err = fRatio*px[ipoint]; | |
770 | Double_t x[4]; | |
771 | x[0] = px[ipoint]; | |
236a0d03 | 772 | if (err>0) fitter.AddPoint(x,val,err); |
12ca5da1 | 773 | } |
774 | fitter.Eval(); | |
775 | param0[0]= fitter.GetParameter(0); | |
776 | param0[1]= fitter.GetParameter(1); | |
777 | } | |
778 | ||
779 | ||
780 | ||
781 | Float_t AliTPCClusterParam::GetError0(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
782 | // | |
783 | // | |
784 | // | |
785 | Float_t value=0; | |
786 | value += fParamS0[dim][type][0]; | |
787 | value += fParamS0[dim][type][1]*z; | |
788 | value += fParamS0[dim][type][2]*angle*angle; | |
789 | value = TMath::Sqrt(TMath::Abs(value)); | |
790 | return value; | |
791 | } | |
792 | ||
793 | ||
794 | Float_t AliTPCClusterParam::GetError0Par(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
795 | // | |
796 | // | |
797 | // | |
798 | Float_t value=0; | |
799 | value += fParamS0Par[dim][type][0]; | |
800 | value += fParamS0Par[dim][type][1]*z; | |
801 | value += fParamS0Par[dim][type][2]*angle*angle; | |
802 | value += fParamS0Par[dim][type][3]*z*z; | |
803 | value += fParamS0Par[dim][type][4]*angle*angle*angle*angle; | |
804 | value += fParamS0Par[dim][type][5]*z*angle*angle; | |
805 | value = TMath::Sqrt(TMath::Abs(value)); | |
806 | return value; | |
807 | } | |
808 | ||
809 | ||
810 | ||
811 | Float_t AliTPCClusterParam::GetError1(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
812 | // | |
813 | // | |
814 | // | |
815 | Float_t value=0; | |
816 | Float_t length=0.75; | |
817 | if (type==1) length=1; | |
818 | if (type==2) length=1.5; | |
819 | value += fParamS1[dim][0]; | |
820 | value += fParamS1[dim][1]*z/length; | |
821 | value += fParamS1[dim][2]*angle*angle*length; | |
822 | value = TMath::Sqrt(TMath::Abs(value)); | |
823 | return value; | |
824 | } | |
825 | ||
826 | Float_t AliTPCClusterParam::GetErrorQ(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
827 | // | |
828 | // | |
829 | // | |
830 | Float_t value=0; | |
831 | value += fParamSQ[dim][type][0]; | |
832 | value += fParamSQ[dim][type][1]*z; | |
833 | value += fParamSQ[dim][type][2]*angle*angle; | |
834 | value += fParamSQ[dim][type][3]*z/Qmean; | |
835 | value += fParamSQ[dim][type][4]*angle*angle/Qmean; | |
836 | value = TMath::Sqrt(TMath::Abs(value)); | |
837 | return value; | |
838 | ||
839 | ||
840 | } | |
841 | ||
842 | Float_t AliTPCClusterParam::GetErrorQPar(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
843 | // | |
844 | // | |
845 | // | |
846 | Float_t value=0; | |
847 | value += fParamSQPar[dim][type][0]; | |
848 | value += fParamSQPar[dim][type][1]*z; | |
849 | value += fParamSQPar[dim][type][2]*angle*angle; | |
850 | value += fParamSQPar[dim][type][3]*z*z; | |
851 | value += fParamSQPar[dim][type][4]*angle*angle*angle*angle; | |
852 | value += fParamSQPar[dim][type][5]*z*angle*angle; | |
853 | value += fParamSQPar[dim][type][6]*z/Qmean; | |
854 | value += fParamSQPar[dim][type][7]*angle*angle/Qmean; | |
855 | value = TMath::Sqrt(TMath::Abs(value)); | |
856 | return value; | |
857 | ||
858 | ||
859 | } | |
860 | ||
861 | Float_t AliTPCClusterParam::GetErrorQParScaled(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
862 | // | |
863 | // | |
864 | // | |
865 | Float_t value=0; | |
866 | value += fParamSQPar[dim][type][0]; | |
867 | value += fParamSQPar[dim][type][1]*z; | |
868 | value += fParamSQPar[dim][type][2]*angle*angle; | |
869 | value += fParamSQPar[dim][type][3]*z*z; | |
870 | value += fParamSQPar[dim][type][4]*angle*angle*angle*angle; | |
871 | value += fParamSQPar[dim][type][5]*z*angle*angle; | |
872 | value += fParamSQPar[dim][type][6]*z/Qmean; | |
873 | value += fParamSQPar[dim][type][7]*angle*angle/Qmean; | |
874 | Float_t valueMean = GetError0Par(dim,type,z,angle); | |
875 | value -= 0.35*0.35*valueMean*valueMean; | |
876 | value = TMath::Sqrt(TMath::Abs(value)); | |
877 | return value; | |
878 | ||
879 | ||
880 | } | |
881 | ||
882 | Float_t AliTPCClusterParam::GetRMS0(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
883 | // | |
884 | // calculate mean RMS of cluster - z,angle - parameters for each pad and dimension separatelly | |
885 | // | |
886 | Float_t value=0; | |
887 | value += fParamRMS0[dim][type][0]; | |
888 | value += fParamRMS0[dim][type][1]*z; | |
889 | value += fParamRMS0[dim][type][2]*angle*angle; | |
890 | value = TMath::Sqrt(TMath::Abs(value)); | |
891 | return value; | |
892 | } | |
893 | ||
894 | Float_t AliTPCClusterParam::GetRMS1(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
895 | // | |
896 | // calculate mean RMS of cluster - z,angle - pad length scalling | |
897 | // | |
898 | Float_t value=0; | |
899 | Float_t length=0.75; | |
900 | if (type==1) length=1; | |
901 | if (type==2) length=1.5; | |
902 | if (type==0){ | |
903 | value += fParamRMS1[dim][0]; | |
904 | }else{ | |
905 | value += fParamRMS1[dim][1]; | |
906 | } | |
907 | value += fParamRMS1[dim][2]*z; | |
908 | value += fParamRMS1[dim][3]*angle*angle*length*length; | |
909 | value = TMath::Sqrt(TMath::Abs(value)); | |
910 | return value; | |
911 | } | |
912 | ||
913 | Float_t AliTPCClusterParam::GetRMSQ(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
914 | // | |
915 | // calculate mean RMS of cluster - z,angle, Q dependence | |
916 | // | |
917 | Float_t value=0; | |
918 | value += fParamRMSQ[dim][type][0]; | |
919 | value += fParamRMSQ[dim][type][1]*z; | |
920 | value += fParamRMSQ[dim][type][2]*angle*angle; | |
921 | value += fParamRMSQ[dim][type][3]*z/Qmean; | |
922 | value += fParamRMSQ[dim][type][4]*angle*angle/Qmean; | |
923 | value = TMath::Sqrt(TMath::Abs(value)); | |
924 | return value; | |
925 | } | |
926 | ||
927 | Float_t AliTPCClusterParam::GetRMSSigma(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
928 | // | |
929 | // calculates RMS of signal shape fluctuation | |
930 | // | |
931 | Float_t mean = GetRMSQ(dim,type,z,angle,Qmean); | |
932 | Float_t value = fRMSSigmaFit[dim][type][0]; | |
933 | value+= fRMSSigmaFit[dim][type][1]*mean; | |
934 | return value; | |
935 | } | |
936 | ||
937 | Float_t AliTPCClusterParam::GetShapeFactor(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean, Float_t rmsL, Float_t rmsM){ | |
938 | // | |
939 | // calculates vallue - sigma distortion contribution | |
940 | // | |
941 | Double_t value =0; | |
942 | // | |
943 | Float_t rmsMeanQ = GetRMSQ(dim,type,z,angle,Qmean); | |
944 | if (rmsL<rmsMeanQ) return value; | |
945 | // | |
946 | Float_t rmsSigma = GetRMSSigma(dim,type,z,angle,Qmean); | |
947 | // | |
948 | if ((rmsM-rmsMeanQ)>2.0*(rmsSigma+fErrorRMSSys[dim])){ | |
949 | //1.5 sigma cut on mean | |
950 | value+= rmsL*rmsL+2*rmsM*rmsM-3*rmsMeanQ*rmsMeanQ; | |
951 | }else{ | |
952 | if ((rmsL-rmsMeanQ)>3.*(rmsSigma+fErrorRMSSys[dim])){ | |
953 | //3 sigma cut on local | |
954 | value+= rmsL*rmsL-rmsMeanQ*rmsMeanQ; | |
955 | } | |
956 | } | |
8076baa0 | 957 | return TMath::Sqrt(TMath::Abs(value)); |
12ca5da1 | 958 | } |
959 | ||
960 | ||
961 | ||
962 | void AliTPCClusterParam::FitData(TTree * tree){ | |
963 | // | |
964 | // make fits for error param and shape param | |
965 | // | |
966 | FitResol(tree); | |
967 | FitRMS(tree); | |
968 | ||
969 | } | |
970 | ||
971 | void AliTPCClusterParam::FitResol(TTree * tree){ | |
972 | // | |
973 | SetInstance(this); | |
974 | for (Int_t idir=0;idir<2; idir++){ | |
975 | for (Int_t itype=0; itype<3; itype++){ | |
976 | Float_t param0[10]; | |
977 | Float_t error0[10]; | |
978 | // model error param | |
979 | FitResol0(tree, idir, itype,param0,error0); | |
980 | printf("\nResol\t%d\t%d\tchi2=%f\n",idir,itype,param0[3]); | |
981 | printf("%f\t%f\t%f\n", param0[0],param0[1],param0[2]); | |
982 | printf("%f\t%f\t%f\n", error0[0],error0[1],error0[2]); | |
983 | for (Int_t ipar=0;ipar<4; ipar++){ | |
984 | fParamS0[idir][itype][ipar] = param0[ipar]; | |
985 | fErrorS0[idir][itype][ipar] = param0[ipar]; | |
986 | } | |
987 | // error param with parabolic correction | |
988 | FitResol0Par(tree, idir, itype,param0,error0); | |
989 | printf("\nResolPar\t%d\t%d\tchi2=%f\n",idir,itype,param0[6]); | |
990 | printf("%f\t%f\t%f\t%f\t%f\t%f\n", param0[0],param0[1],param0[2],param0[3],param0[4],param0[5]); | |
991 | printf("%f\t%f\t%f\t%f\t%f\t%f\n", error0[0],error0[1],error0[2],error0[3],error0[4],error0[5]); | |
992 | for (Int_t ipar=0;ipar<7; ipar++){ | |
993 | fParamS0Par[idir][itype][ipar] = param0[ipar]; | |
994 | fErrorS0Par[idir][itype][ipar] = param0[ipar]; | |
995 | } | |
996 | // | |
997 | FitResolQ(tree, idir, itype,param0,error0); | |
998 | printf("\nResolQ\t%d\t%d\tchi2=%f\n",idir,itype,param0[5]); | |
999 | printf("%f\t%f\t%f\t%f\t%f\n", param0[0],param0[1],param0[2],param0[3],param0[4]); | |
1000 | printf("%f\t%f\t%f\t%f\t%f\n", error0[0],error0[1],error0[2],error0[3],error0[4]); | |
1001 | for (Int_t ipar=0;ipar<6; ipar++){ | |
1002 | fParamSQ[idir][itype][ipar] = param0[ipar]; | |
1003 | fErrorSQ[idir][itype][ipar] = param0[ipar]; | |
1004 | } | |
1005 | // | |
1006 | FitResolQPar(tree, idir, itype,param0,error0); | |
1007 | printf("\nResolQ\t%d\t%d\tchi2=%f\n",idir,itype,param0[8]); | |
1008 | printf("%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\n", param0[0],param0[1],param0[2],param0[3],param0[4],param0[5],param0[6],param0[7]); | |
1009 | printf("%f\t%f\t%f\t%f\t%f\t%f\t%f\t%f\n", error0[0],error0[1],error0[2],error0[3],error0[4],error0[5],error0[6],error0[7]); | |
1010 | for (Int_t ipar=0;ipar<9; ipar++){ | |
1011 | fParamSQPar[idir][itype][ipar] = param0[ipar]; | |
1012 | fErrorSQPar[idir][itype][ipar] = param0[ipar]; | |
1013 | } | |
1014 | } | |
1015 | } | |
1016 | // | |
1017 | printf("Resol z-scaled\n"); | |
1018 | for (Int_t idir=0;idir<2; idir++){ | |
1019 | Float_t param0[4]; | |
1020 | Float_t error0[4]; | |
1021 | FitResol1(tree, idir,param0,error0); | |
1022 | printf("\nResol\t%d\tchi2=%f\n",idir,param0[3]); | |
1023 | printf("%f\t%f\t%f\n", param0[0],param0[1],param0[2]); | |
1024 | printf("%f\t%f\t%f\n", error0[0],error0[1],error0[2]); | |
1025 | for (Int_t ipar=0;ipar<4; ipar++){ | |
1026 | fParamS1[idir][ipar] = param0[ipar]; | |
1027 | fErrorS1[idir][ipar] = param0[ipar]; | |
1028 | } | |
1029 | } | |
1030 | ||
1031 | for (Int_t idir=0;idir<2; idir++){ | |
1032 | printf("\nDirection %d\n",idir); | |
1033 | printf("%d\t%f\t%f\t%f\n", -1,fParamS1[idir][0],fParamS1[idir][1],fParamS1[idir][2]); | |
1034 | for (Int_t itype=0; itype<3; itype++){ | |
1035 | Float_t length=0.75; | |
1036 | if (itype==1) length=1; | |
1037 | if (itype==2) length=1.5; | |
1038 | printf("%d\t%f\t%f\t%f\n", itype,fParamS0[idir][itype][0],fParamS0[idir][itype][1]*TMath::Sqrt(length),fParamS0[idir][itype][2]/TMath::Sqrt(length)); | |
1039 | } | |
1040 | } | |
1041 | } | |
1042 | ||
1043 | ||
1044 | ||
1045 | void AliTPCClusterParam::FitRMS(TTree * tree){ | |
1046 | // | |
1047 | SetInstance(this); | |
1048 | for (Int_t idir=0;idir<2; idir++){ | |
1049 | for (Int_t itype=0; itype<3; itype++){ | |
1050 | Float_t param0[6]; | |
1051 | Float_t error0[6]; | |
1052 | FitRMS0(tree, idir, itype,param0,error0); | |
1053 | printf("\nRMS\t%d\t%d\tchi2=%f\n",idir,itype,param0[3]); | |
1054 | printf("%f\t%f\t%f\n", param0[0],param0[1],param0[2]); | |
1055 | printf("%f\t%f\t%f\n", error0[0],error0[1],error0[2]); | |
1056 | for (Int_t ipar=0;ipar<4; ipar++){ | |
1057 | fParamRMS0[idir][itype][ipar] = param0[ipar]; | |
1058 | fErrorRMS0[idir][itype][ipar] = param0[ipar]; | |
1059 | } | |
1060 | FitRMSQ(tree, idir, itype,param0,error0); | |
1061 | printf("\nRMSQ\t%d\t%d\tchi2=%f\n",idir,itype,param0[5]); | |
1062 | printf("%f\t%f\t%f\t%f\t%f\n", param0[0],param0[1],param0[2],param0[3],param0[4]); | |
1063 | printf("%f\t%f\t%f\t%f\t%f\n", error0[0],error0[1],error0[2],error0[3],error0[4]); | |
1064 | for (Int_t ipar=0;ipar<6; ipar++){ | |
1065 | fParamRMSQ[idir][itype][ipar] = param0[ipar]; | |
1066 | fErrorRMSQ[idir][itype][ipar] = param0[ipar]; | |
1067 | } | |
1068 | } | |
1069 | } | |
1070 | // | |
1071 | printf("RMS z-scaled\n"); | |
1072 | for (Int_t idir=0;idir<2; idir++){ | |
1073 | Float_t param0[5]; | |
1074 | Float_t error0[5]; | |
1075 | FitRMS1(tree, idir,param0,error0); | |
1076 | printf("\nRMS\t%d\tchi2=%f\n",idir,param0[4]); | |
1077 | printf("%f\t%f\t%f\t%f\n", param0[0],param0[1],param0[2], param0[3]); | |
1078 | printf("%f\t%f\t%f\t%f\n", error0[0],error0[1],error0[2], error0[3]); | |
1079 | for (Int_t ipar=0;ipar<5; ipar++){ | |
1080 | fParamRMS1[idir][ipar] = param0[ipar]; | |
1081 | fErrorRMS1[idir][ipar] = param0[ipar]; | |
1082 | } | |
1083 | } | |
1084 | ||
1085 | for (Int_t idir=0;idir<2; idir++){ | |
1086 | printf("\nDirection %d\n",idir); | |
1087 | printf("%d\t%f\t%f\t%f\t%f\n", -1,fParamRMS1[idir][0],fParamRMS1[idir][1],fParamRMS1[idir][2], fParamRMS1[idir][3]); | |
1088 | for (Int_t itype=0; itype<3; itype++){ | |
1089 | Float_t length=0.75; | |
1090 | if (itype==1) length=1; | |
1091 | if (itype==2) length=1.5; | |
1092 | if (itype==0) printf("%d\t%f\t\t\t%f\t%f\n", itype,fParamRMS0[idir][itype][0],fParamRMS0[idir][itype][1],fParamRMS0[idir][itype][2]/length); | |
1093 | if (itype>0) printf("%d\t\t\t%f\t%f\t%f\n", itype,fParamRMS0[idir][itype][0],fParamRMS0[idir][itype][1],fParamRMS0[idir][itype][2]/length); | |
1094 | } | |
1095 | } | |
1096 | // | |
1097 | // Fit RMS sigma | |
1098 | // | |
1099 | printf("RMS fluctuation parameterization \n"); | |
1100 | for (Int_t idir=0;idir<2; idir++){ | |
1101 | for (Int_t itype=0; itype<3; itype++){ | |
1102 | Float_t param0[5]; | |
1103 | Float_t error0[5]; | |
1104 | FitRMSSigma(tree, idir,itype,param0,error0); | |
1105 | printf("\t%d\t%d\t%f\t%f\n", idir, itype, param0[0],param0[1]); | |
1106 | for (Int_t ipar=0;ipar<2; ipar++){ | |
1107 | fRMSSigmaFit[idir][itype][ipar] = param0[ipar]; | |
1108 | } | |
1109 | } | |
1110 | } | |
1111 | // | |
1112 | // store systematic error end RMS fluctuation parameterization | |
1113 | // | |
1114 | TH1F hratio("hratio","hratio",100,-0.1,0.1); | |
1115 | tree->Draw("(RMSm-AliTPCClusterParam::SGetRMSQ(Dim,Pad,Zm,AngleM,QMean))/RMSm>>hratio","Dim==0&&QMean>0"); | |
1116 | fErrorRMSSys[0] = hratio.GetRMS(); | |
1117 | tree->Draw("(RMSm-AliTPCClusterParam::SGetRMSQ(Dim,Pad,Zm,AngleM,QMean))/RMSm>>hratio","Dim==1&&QMean>0"); | |
1118 | fErrorRMSSys[1] = hratio.GetRMS(); | |
1119 | TH1F hratioR("hratioR","hratioR",100,0,0.2); | |
1120 | tree->Draw("RMSs/RMSm>>hratioR","Dim==0&&QMean>0"); | |
1121 | fRMSSigmaRatio[0][0]=hratioR.GetMean(); | |
1122 | fRMSSigmaRatio[0][1]=hratioR.GetRMS(); | |
1123 | tree->Draw("RMSs/RMSm>>hratioR","Dim==1&&QMean>0"); | |
1124 | fRMSSigmaRatio[1][0]=hratioR.GetMean(); | |
1125 | fRMSSigmaRatio[1][1]=hratioR.GetRMS(); | |
1126 | } | |
1127 | ||
1128 | void AliTPCClusterParam::Test(TTree * tree, const char *output){ | |
1129 | // | |
1130 | // Draw standard quality histograms to output file | |
1131 | // | |
1132 | SetInstance(this); | |
1133 | TFile f(output,"recreate"); | |
1134 | f.cd(); | |
1135 | // | |
1136 | // 1D histograms - resolution | |
1137 | // | |
1138 | for (Int_t idim=0; idim<2; idim++){ | |
1139 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1140 | char hname1[300]; | |
1141 | char hcut1[300]; | |
1142 | char hexp1[300]; | |
1143 | // | |
1144 | sprintf(hname1,"Delta0 Dir %d Pad %d",idim,ipad); | |
1145 | sprintf(hcut1,"Dim==%d&&QMean<0&&Pad==%d",idim,ipad); | |
1146 | sprintf(hexp1,"(Resol-AliTPCClusterParam::SGetError0(Dim,Pad,Zm,AngleM))/Resol>>%s",hname1); | |
1147 | TH1F his1DRel0(hname1, hname1, 100,-0.2, 0.2); | |
1148 | sprintf(hname1,"Dim==%d&&QMean<0&&Pad=%d",idim,ipad); | |
1149 | tree->Draw(hexp1,hcut1,""); | |
1150 | his1DRel0.Write(); | |
1151 | // | |
1152 | sprintf(hname1,"Delta0Par Dir %d Pad %d",idim,ipad); | |
1153 | sprintf(hcut1,"Dim==%d&&QMean<0&&Pad==%d",idim,ipad); | |
1154 | sprintf(hexp1,"(Resol-AliTPCClusterParam::SGetError0Par(Dim,Pad,Zm,AngleM))/Resol>>%s",hname1); | |
1155 | TH1F his1DRel0Par(hname1, hname1, 100,-0.2, 0.2); | |
1156 | sprintf(hname1,"Dim==%d&&QMean<0&&Pad=%d",idim,ipad); | |
1157 | tree->Draw(hexp1,hcut1,""); | |
1158 | his1DRel0Par.Write(); | |
1159 | // | |
1160 | } | |
1161 | } | |
1162 | // | |
1163 | // 2D histograms - resolution | |
1164 | // | |
1165 | for (Int_t idim=0; idim<2; idim++){ | |
1166 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1167 | char hname1[300]; | |
1168 | char hcut1[300]; | |
1169 | char hexp1[300]; | |
1170 | // | |
1171 | sprintf(hname1,"2DDelta0 Dir %d Pad %d",idim,ipad); | |
1172 | sprintf(hcut1,"Dim==%d&&QMean<0&&Pad==%d",idim,ipad); | |
1173 | sprintf(hexp1,"(Resol-AliTPCClusterParam::SGetError0(Dim,Pad,Zm,AngleM))/Resol:AngleM:Zm>>%s",hname1); | |
1174 | TProfile2D profDRel0(hname1, hname1, 6,0,250,6,0,1); | |
1175 | sprintf(hname1,"Dim==%d&&QMean<0&&Pad=%d",idim,ipad); | |
1176 | tree->Draw(hexp1,hcut1,""); | |
1177 | profDRel0.Write(); | |
1178 | // | |
1179 | sprintf(hname1,"2DDelta0Par Dir %d Pad %d",idim,ipad); | |
1180 | sprintf(hcut1,"Dim==%d&&QMean<0&&Pad==%d",idim,ipad); | |
1181 | sprintf(hexp1,"(Resol-AliTPCClusterParam::SGetError0Par(Dim,Pad,Zm,AngleM))/Resol:AngleM:Zm>>%s",hname1); | |
1182 | TProfile2D profDRel0Par(hname1, hname1,6,0,250,6,0,1); | |
1183 | sprintf(hname1,"Dim==%d&&QMean<0&&Pad=%d",idim,ipad); | |
1184 | tree->Draw(hexp1,hcut1,""); | |
1185 | profDRel0Par.Write(); | |
1186 | // | |
1187 | } | |
1188 | } | |
1189 | } | |
1190 | ||
1191 | ||
1192 | ||
1193 | void AliTPCClusterParam::Print(Option_t* /*option*/) const{ | |
1194 | // | |
1195 | // Print param Information | |
1196 | // | |
1197 | ||
1198 | // | |
1199 | // Error parameterization | |
1200 | // | |
1201 | printf("\nResolution Scaled factors\n"); | |
1202 | printf("Dir\tPad\tP0\t\tP1\t\tP2\t\tchi2\n"); | |
8076baa0 | 1203 | printf("Y\tall\t%f\t%f\t%f\t%f\n", TMath::Sqrt(TMath::Abs(fParamS1[0][0])),TMath::Sqrt(TMath::Abs(fParamS1[0][1])), |
1204 | TMath::Sqrt(TMath::Abs(fParamS1[0][2])),TMath::Sqrt(TMath::Abs(fParamS1[0][3]))); | |
12ca5da1 | 1205 | for (Int_t ipad=0; ipad<3; ipad++){ |
1206 | Float_t length=0.75; | |
1207 | if (ipad==1) length=1; | |
1208 | if (ipad==2) length=1.5; | |
1209 | printf("\t%d\t%f\t%f\t%f\t%f\n", ipad, | |
1210 | TMath::Sqrt(TMath::Abs(fParamS0[0][ipad][0])), | |
8076baa0 | 1211 | TMath::Sqrt(TMath::Abs(fParamS0[0][ipad][1]*length)), |
1212 | TMath::Sqrt(TMath::Abs(fParamS0[0][ipad][2]/length)), | |
1213 | TMath::Sqrt(TMath::Abs(fParamS0[0][ipad][3]))); | |
12ca5da1 | 1214 | } |
1215 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1216 | Float_t length=0.75; | |
1217 | if (ipad==1) length=1; | |
1218 | if (ipad==2) length=1.5; | |
1219 | printf("\t%dPar\t%f\t%f\t%f\t%f\n", ipad, | |
1220 | TMath::Sqrt(TMath::Abs(fParamS0Par[0][ipad][0])), | |
8076baa0 | 1221 | TMath::Sqrt(TMath::Abs(fParamS0Par[0][ipad][1]*length)), |
1222 | TMath::Sqrt(TMath::Abs(fParamS0Par[0][ipad][2]/length)), | |
1223 | TMath::Sqrt(TMath::Abs(fParamS0Par[0][ipad][6]))); | |
12ca5da1 | 1224 | } |
1225 | printf("Z\tall\t%f\t%f\t%f\t%f\n", TMath::Sqrt(TMath::Abs(fParamS1[1][0])),TMath::Sqrt(fParamS1[1][1]), | |
1226 | TMath::Sqrt(fParamS1[1][2]), TMath::Sqrt(fParamS1[1][3])); | |
1227 | ||
1228 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1229 | Float_t length=0.75; | |
1230 | if (ipad==1) length=1; | |
1231 | if (ipad==2) length=1.5; | |
1232 | printf("\t%d\t%f\t%f\t%f\t%f\n", ipad, | |
1233 | TMath::Sqrt(TMath::Abs(fParamS0[1][ipad][0])), | |
8076baa0 | 1234 | TMath::Sqrt(TMath::Abs(fParamS0[1][ipad][1]*length)), |
1235 | TMath::Sqrt(TMath::Abs(fParamS0[1][ipad][2]/length)), | |
1236 | TMath::Sqrt(TMath::Abs(fParamS0[1][ipad][3]))); | |
12ca5da1 | 1237 | } |
1238 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1239 | Float_t length=0.75; | |
1240 | if (ipad==1) length=1; | |
1241 | if (ipad==2) length=1.5; | |
1242 | printf("\t%dPar\t%f\t%f\t%f\t%f\n", ipad, | |
8076baa0 | 1243 | TMath::Sqrt(TMath::Abs(TMath::Abs(fParamS0Par[1][ipad][0]))), |
1244 | TMath::Sqrt(TMath::Abs(fParamS0Par[1][ipad][1]*length)), | |
1245 | TMath::Sqrt(TMath::Abs(fParamS0Par[1][ipad][2]/length)), | |
1246 | TMath::Sqrt(TMath::Abs(fParamS0Par[1][ipad][6]))); | |
12ca5da1 | 1247 | } |
1248 | ||
1249 | // | |
1250 | // RMS scaling | |
1251 | // | |
1252 | printf("\n"); | |
1253 | printf("\nRMS Scaled factors\n"); | |
1254 | printf("Dir\tPad\tP00\t\tP01\t\tP1\t\tP2\t\tchi2\n"); | |
8076baa0 | 1255 | printf("Y\tall\t%f\t%f\t%f\t%f\t%f\n", |
1256 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][0])), | |
1257 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][1])), | |
1258 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][2])), | |
1259 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][3])), | |
1260 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][4]))); | |
12ca5da1 | 1261 | for (Int_t ipad=0; ipad<3; ipad++){ |
1262 | Float_t length=0.75; | |
1263 | if (ipad==1) length=1; | |
1264 | if (ipad==2) length=1.5; | |
1265 | if (ipad==0){ | |
1266 | printf("\t%d\t%f\t%f\t%f\t%f\t%f\n", ipad, | |
1267 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][0])), | |
1268 | 0., | |
8076baa0 | 1269 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][1])), |
1270 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][2]/(length*length))), | |
1271 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][3]))); | |
12ca5da1 | 1272 | }else{ |
1273 | printf("\t%d\t%f\t%f\t%f\t%f\t%f\n", ipad, | |
1274 | 0., | |
1275 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][0])), | |
8076baa0 | 1276 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][1])), |
1277 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][2]/(length*length))), | |
1278 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][3]))); | |
12ca5da1 | 1279 | } |
1280 | } | |
1281 | printf("\n"); | |
8076baa0 | 1282 | printf("Z\tall\t%f\t%f\t%f\t%f\t%f\n", |
1283 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][0])), | |
1284 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][1])), | |
1285 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][2])), | |
1286 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][3])), | |
1287 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][4]))); | |
12ca5da1 | 1288 | for (Int_t ipad=0; ipad<3; ipad++){ |
1289 | Float_t length=0.75; | |
1290 | if (ipad==1) length=1; | |
1291 | if (ipad==2) length=1.5; | |
1292 | if (ipad==0){ | |
1293 | printf("\t%d\t%f\t%f\t%f\t%f\t%f\n", ipad, | |
1294 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][0])), | |
1295 | 0., | |
8076baa0 | 1296 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][1])), |
1297 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][2]/(length*length))), | |
1298 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][3]))); | |
12ca5da1 | 1299 | }else{ |
1300 | printf("\t%d\t%f\t%f\t%f\t%f\t%f\n", ipad, | |
1301 | 0., | |
1302 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][0])), | |
8076baa0 | 1303 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][1])), |
1304 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][2]/(length*length))), | |
1305 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][3]))); | |
12ca5da1 | 1306 | } |
1307 | } | |
1308 | } | |
1309 | ||
1310 | ||
1311 | ||
1312 | ||
1313 | ||
0a65832b | 1314 | Float_t AliTPCClusterParam::Qnorm(Int_t ipad, Int_t itype, Float_t dr, Float_t ty, Float_t tz){ |
1315 | // get Q normalization | |
1316 | // type - 0 Qtot 1 Qmax | |
1317 | // ipad - 0 (0.75 cm) ,1 (1 cm), 2 (1.5 cm) | |
1318 | // | |
f1afff3b | 1319 | //expession formula - TString *strq0 = toolkit.FitPlane(chain,"dedxQ.fElements[2]","dr++ty++tz++dr*ty++dr*tz++ty*tz++ty^2++tz^2","IPad==0",chi2,npoints,param,covar,0,100000); |
1320 | ||
f1c2a4a3 | 1321 | if (fQNorm==0) return 0; |
0a65832b | 1322 | TVectorD * norm = (TVectorD*)fQNorm->At(3*itype+ipad); |
1323 | if (!norm) return 0; | |
f1afff3b | 1324 | TVectorD &no = *norm; |
684602c8 | 1325 | Float_t res = |
1326 | no[0]+ | |
f1afff3b | 1327 | no[1]*dr+ |
1328 | no[2]*ty+ | |
1329 | no[3]*tz+ | |
1330 | no[4]*dr*ty+ | |
1331 | no[5]*dr*tz+ | |
1332 | no[6]*ty*tz+ | |
1333 | no[7]*dr*dr+ | |
1334 | no[8]*ty*ty+ | |
1335 | no[9]*tz*tz; | |
1336 | res/=no[0]; | |
0a65832b | 1337 | return res; |
1338 | } | |
1339 | ||
1340 | ||
1341 | ||
1342 | void AliTPCClusterParam::SetQnorm(Int_t ipad, Int_t itype, TVectorD * norm){ | |
1343 | // | |
1344 | // set normalization | |
1345 | // | |
1346 | // type - 0 Qtot 1 Qmax | |
1347 | // ipad - 0 (0.75 cm) ,1 (1 cm), 2 (1.5 cm) | |
1348 | // | |
1349 | ||
1350 | if (fQNorm==0) fQNorm = new TObjArray(6); | |
1351 | fQNorm->AddAt(new TVectorD(*norm), itype*3+ipad); | |
1352 | } | |
236a0d03 | 1353 | |
b17540e4 | 1354 | Float_t AliTPCClusterParam::QnormPos(Int_t ipad,Bool_t isMax, Float_t pad, Float_t time, Float_t z, Float_t sy2, Float_t sz2, Float_t qm, Float_t qt){ |
1355 | // | |
1356 | // Make Q normalization as function of following parameters | |
1357 | // Fit parameters to be used in corresponding correction function extracted in the AliTPCclaibTracksGain - Taylor expansion | |
1358 | // 1 - dp - relative pad position | |
1359 | // 2 - dt - relative time position | |
1360 | // 3 - di - drift length (norm to 1); | |
1361 | // 4 - dq0 - Tot/Max charge | |
1362 | // 5 - dq1 - Max/Tot charge | |
1363 | // 6 - sy - sigma y - shape | |
1364 | // 7 - sz - sigma z - shape | |
1365 | // | |
1366 | ||
1367 | //The results can be visualized using the debug streamer information of the AliTPCcalibTracksGain - | |
1368 | // Following variable used - correspondance to the our variable conventions | |
1369 | //chain0->SetAlias("dp","((Cl.fPad-int(Cl.fPad)-0.5)/0.5)"); | |
1370 | Double_t dp = ((pad-int(pad)-0.5)*2.); | |
1371 | //chain0->SetAlias("dt","((Cl.fTimeBin-int(Cl.fTimeBin)-0.5)/0.5)"); | |
1372 | Double_t dt = ((time-int(time)-0.5)*2.); | |
1373 | //chain0->SetAlias("di","(sqrt(1.-abs(Cl.fZ)/250.))"); | |
1374 | Double_t di = TMath::Sqrt(1-TMath::Abs(z)/250.); | |
1375 | //chain0->SetAlias("dq0","(0.2*(Cl.fQ+2)/(Cl.fMax+2))"); | |
1376 | Double_t dq0 = 0.2*(qt+2.)/(qm+2.); | |
1377 | //chain0->SetAlias("dq1","(5*(Cl.fMax+2)/(Cl.fQ+2))"); | |
1378 | Double_t dq1 = 5.*(qm+2.)/(qt+2.); | |
1379 | //chain0->SetAlias("sy","(0.32/sqrt(0.01^2+Cl.fSigmaY2))"); | |
1380 | Double_t sy = 0.32/TMath::Sqrt(0.01*0.01+sy2); | |
1381 | //chain0->SetAlias("sz","(0.32/sqrt(0.01^2+Cl.fSigmaZ2))"); | |
1382 | Double_t sz = 0.32/TMath::Sqrt(0.01*0.01+sz2); | |
1383 | // | |
1384 | // | |
1385 | // | |
1386 | TVectorD * pvec = 0; | |
1387 | if (isMax){ | |
1388 | pvec = fPosQMnorm[ipad]; | |
1389 | }else{ | |
1390 | pvec = fPosQTnorm[ipad]; | |
1391 | } | |
1392 | TVectorD ¶m = *pvec; | |
1393 | // | |
1394 | // Eval part - in correspondance with fit part from debug streamer | |
1395 | // | |
1396 | Double_t result=param[0]; | |
1397 | Int_t index =1; | |
1398 | // | |
1399 | result+=dp*param[index++]; //1 | |
1400 | result+=dt*param[index++]; //2 | |
1401 | result+=dp*dp*param[index++]; //3 | |
1402 | result+=dt*dt*param[index++]; //4 | |
1403 | result+=dt*dt*dt*param[index++]; //5 | |
1404 | result+=dp*dt*param[index++]; //6 | |
1405 | result+=dp*dt*dt*param[index++]; //7 | |
1406 | result+=(dq0)*param[index++]; //8 | |
1407 | result+=(dq1)*param[index++]; //9 | |
1408 | // | |
1409 | // | |
1410 | result+=dp*dp*(di)*param[index++]; //10 | |
1411 | result+=dt*dt*(di)*param[index++]; //11 | |
1412 | result+=dp*dp*sy*param[index++]; //12 | |
1413 | result+=dt*sz*param[index++]; //13 | |
1414 | result+=dt*dt*sz*param[index++]; //14 | |
1415 | result+=dt*dt*dt*sz*param[index++]; //15 | |
1416 | // | |
1417 | result+=dp*dp*1*sy*sz*param[index++]; //16 | |
1418 | result+=dt*sy*sz*param[index++]; //17 | |
1419 | result+=dt*dt*sy*sz*param[index++]; //18 | |
1420 | result+=dt*dt*dt*sy*sz*param[index++]; //19 | |
1421 | // | |
1422 | result+=dp*dp*(dq0)*param[index++]; //20 | |
1423 | result+=dt*1*(dq0)*param[index++]; //21 | |
1424 | result+=dt*dt*(dq0)*param[index++]; //22 | |
1425 | result+=dt*dt*dt*(dq0)*param[index++]; //23 | |
1426 | // | |
1427 | result+=dp*dp*(dq1)*param[index++]; //24 | |
1428 | result+=dt*(dq1)*param[index++]; //25 | |
1429 | result+=dt*dt*(dq1)*param[index++]; //26 | |
1430 | result+=dt*dt*dt*(dq1)*param[index++]; //27 | |
1431 | ||
2e5bcb67 | 1432 | if (result<0.75) result=0.75; |
1433 | if (result>1.25) result=1.25; | |
1434 | ||
b17540e4 | 1435 | return result; |
1436 | ||
1437 | } | |
236a0d03 | 1438 | |
1439 | ||
1440 | ||
236a0d03 | 1441 | |
236a0d03 | 1442 | |
bf97e1c4 | 1443 | Float_t AliTPCClusterParam::PosCorrection(Int_t type, Int_t ipad, Float_t pad, Float_t time, Float_t z, Float_t /*sy2*/, Float_t /*sz2*/, Float_t /*qm*/){ |
2e5bcb67 | 1444 | |
1445 | // | |
1446 | // Make postion correction | |
1447 | // type - 0 - y correction | |
1448 | // 1 - z correction | |
1449 | // ipad - 0, 1, 2 - short, medium long pads | |
1450 | // pad - float pad number | |
1451 | // time - float time bin number | |
1452 | // z - z of the cluster | |
2e5bcb67 | 1453 | |
1454 | // | |
1455 | //chainres->SetAlias("dp","(-1+(Cl.fZ>0)*2)*((Cl.fPad-int(Cl.fPad))-0.5)"); | |
1456 | //chainres->SetAlias("dt","(-1+(Cl.fZ>0)*2)*((Cl.fTimeBin-0.66-int(Cl.fTimeBin-0.66))-0.5)"); | |
1457 | //chainres->SetAlias("sp","(sin(dp*pi)-dp*pi)"); | |
1458 | //chainres->SetAlias("st","(sin(dt)-dt)"); | |
1459 | // | |
1460 | //chainres->SetAlias("di","sqrt(1.-abs(Cl.fZ/250.))"); | |
2e5bcb67 | 1461 | |
1462 | // | |
1463 | // Derived variables | |
1464 | // | |
1465 | Double_t dp = (-1+(z>0)*2)*((pad-int(pad))-0.5); | |
1466 | Double_t dt = (-1+(z>0)*2)*((time-0.66-int(time-0.66))-0.5); | |
1467 | Double_t sp = (TMath::Sin(dp*TMath::Pi())-dp*TMath::Pi()); | |
1468 | Double_t st = (TMath::Sin(dt)-dt); | |
1469 | // | |
bf97e1c4 | 1470 | Double_t di = TMath::Sqrt(TMath::Abs(1.-TMath::Abs(z/250.))); |
2e5bcb67 | 1471 | // |
1472 | // | |
1473 | // | |
1474 | TVectorD * pvec = 0; | |
1475 | if (type==0){ | |
1476 | pvec = fPosYcor[ipad]; | |
1477 | }else{ | |
1478 | pvec = fPosZcor[ipad]; | |
1479 | } | |
1480 | TVectorD ¶m = *pvec; | |
1481 | // | |
bf97e1c4 | 1482 | Double_t result=0; |
2e5bcb67 | 1483 | Int_t index =1; |
1484 | ||
1485 | if (type==0){ | |
1486 | // y corr | |
1487 | result+=(dp)*param[index++]; //1 | |
1488 | result+=(dp)*di*param[index++]; //2 | |
2e5bcb67 | 1489 | // |
bf97e1c4 | 1490 | result+=(sp)*param[index++]; //3 |
1491 | result+=(sp)*di*param[index++]; //4 | |
2e5bcb67 | 1492 | } |
1493 | if (type==1){ | |
1494 | result+=(dt)*param[index++]; //1 | |
1495 | result+=(dt)*di*param[index++]; //2 | |
2e5bcb67 | 1496 | // |
bf97e1c4 | 1497 | result+=(st)*param[index++]; //3 |
1498 | result+=(st)*di*param[index++]; //4 | |
2e5bcb67 | 1499 | } |
bf97e1c4 | 1500 | if (TMath::Abs(result)>0.05) return 0; |
2e5bcb67 | 1501 | return result; |
1502 | } | |
1503 | ||
1504 | ||
1505 |