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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 | /* | |
64 | AliCDBManager::Instance()->SetRun(1) | |
65 | AliCDBManager::Instance()->SetDefaultStorage("local://$ALICE_ROOT"); | |
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); | |
72 | ||
73 | */ | |
96305e49 | 74 | // |
d028aade | 75 | // // |
12ca5da1 | 76 | /////////////////////////////////////////////////////////////////////////////// |
77 | #include "AliTPCClusterParam.h" | |
78 | #include "TMath.h" | |
79 | #include "TFile.h" | |
80 | #include "TTree.h" | |
81 | #include <TVectorF.h> | |
82 | #include <TLinearFitter.h> | |
83 | #include <TH1F.h> | |
84 | #include <TProfile2D.h> | |
0a65832b | 85 | #include <TVectorD.h> |
86 | #include <TObjArray.h> | |
12ca5da1 | 87 | |
88 | ClassImp(AliTPCClusterParam) | |
89 | ||
90 | ||
91 | AliTPCClusterParam* AliTPCClusterParam::fgInstance = 0; | |
92 | ||
93 | ||
94 | /* | |
95 | Example usage fitting parameterization: | |
96 | TFile fres("resol.root"); //tree with resolution and shape | |
97 | TTree * treeRes =(TTree*)fres.Get("Resol"); | |
98 | ||
99 | AliTPCClusterParam param; | |
100 | param.SetInstance(¶m); | |
101 | param.FitResol(treeRes); | |
102 | param.FitRMS(treeRes); | |
103 | TFile fparam("TPCClusterParam.root","recreate"); | |
104 | param.Write("Param"); | |
105 | // | |
106 | // | |
107 | TFile fparam("TPCClusterParam.root"); | |
108 | AliTPCClusterParam *param2 = (AliTPCClusterParam *) fparam.Get("Param"); | |
109 | param2->SetInstance(param2); | |
110 | param2->Test(treeRes); | |
111 | ||
112 | ||
113 | treeRes->Draw("(Resol-AliTPCClusterParam::SGetError0(Dim,Pad,Zm,AngleM))/Resol","Dim==0&&QMean<0") | |
114 | ||
115 | */ | |
116 | ||
117 | ||
118 | ||
119 | ||
120 | //_ singleton implementation __________________________________________________ | |
121 | AliTPCClusterParam* AliTPCClusterParam::Instance() | |
122 | { | |
123 | // | |
124 | // Singleton implementation | |
125 | // Returns an instance of this class, it is created if neccessary | |
126 | // | |
127 | if (fgInstance == 0){ | |
128 | fgInstance = new AliTPCClusterParam(); | |
129 | } | |
130 | return fgInstance; | |
131 | } | |
132 | ||
133 | ||
134 | ||
135 | ||
136 | void AliTPCClusterParam::FitResol0(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
137 | // | |
138 | // Fit z - angular dependence of resolution | |
139 | // | |
140 | // Int_t dim=0, type=0; | |
141 | char varVal[100]; | |
142 | sprintf(varVal,"Resol:AngleM:Zm"); | |
143 | char varErr[100]; | |
144 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
145 | char varCut[100]; | |
146 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean<0",dim,type); | |
147 | // | |
148 | Int_t entries = tree->Draw(varVal,varCut); | |
149 | Float_t px[10000], py[10000], pz[10000]; | |
150 | Float_t ex[10000], ey[10000], ez[10000]; | |
151 | // | |
152 | tree->Draw(varErr,varCut); | |
153 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
154 | ex[ipoint]= tree->GetV3()[ipoint]; | |
155 | ey[ipoint]= tree->GetV2()[ipoint]; | |
156 | ez[ipoint]= tree->GetV1()[ipoint]; | |
157 | } | |
158 | tree->Draw(varVal,varCut); | |
159 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
160 | px[ipoint]= tree->GetV3()[ipoint]; | |
161 | py[ipoint]= tree->GetV2()[ipoint]; | |
162 | pz[ipoint]= tree->GetV1()[ipoint]; | |
163 | } | |
164 | ||
165 | // | |
166 | TLinearFitter fitter(3,"hyp2"); | |
167 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
168 | Float_t val = pz[ipoint]*pz[ipoint]; | |
169 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
170 | Double_t x[2]; | |
171 | x[0] = px[ipoint]; | |
172 | x[1] = py[ipoint]*py[ipoint]; | |
173 | fitter.AddPoint(x,val,err); | |
174 | } | |
175 | fitter.Eval(); | |
176 | TVectorD param(3); | |
177 | fitter.GetParameters(param); | |
178 | param0[0] = param[0]; | |
179 | param0[1] = param[1]; | |
180 | param0[2] = param[2]; | |
181 | Float_t chi2 = fitter.GetChisquare()/entries; | |
182 | param0[3] = chi2; | |
183 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
184 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
185 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
186 | } | |
187 | ||
188 | ||
189 | void AliTPCClusterParam::FitResol0Par(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
190 | // | |
191 | // Fit z - angular dependence of resolution | |
192 | // | |
193 | // Int_t dim=0, type=0; | |
194 | char varVal[100]; | |
195 | sprintf(varVal,"Resol:AngleM:Zm"); | |
196 | char varErr[100]; | |
197 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
198 | char varCut[100]; | |
199 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean<0",dim,type); | |
200 | // | |
201 | Int_t entries = tree->Draw(varVal,varCut); | |
202 | Float_t px[10000], py[10000], pz[10000]; | |
203 | Float_t ex[10000], ey[10000], ez[10000]; | |
204 | // | |
205 | tree->Draw(varErr,varCut); | |
206 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
207 | ex[ipoint]= tree->GetV3()[ipoint]; | |
208 | ey[ipoint]= tree->GetV2()[ipoint]; | |
209 | ez[ipoint]= tree->GetV1()[ipoint]; | |
210 | } | |
211 | tree->Draw(varVal,varCut); | |
212 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
213 | px[ipoint]= tree->GetV3()[ipoint]; | |
214 | py[ipoint]= tree->GetV2()[ipoint]; | |
215 | pz[ipoint]= tree->GetV1()[ipoint]; | |
216 | } | |
217 | ||
218 | // | |
219 | TLinearFitter fitter(6,"hyp5"); | |
220 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
221 | Float_t val = pz[ipoint]*pz[ipoint]; | |
222 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
223 | Double_t x[6]; | |
224 | x[0] = px[ipoint]; | |
225 | x[1] = py[ipoint]*py[ipoint]; | |
226 | x[2] = x[0]*x[0]; | |
227 | x[3] = x[1]*x[1]; | |
228 | x[4] = x[0]*x[1]; | |
229 | fitter.AddPoint(x,val,err); | |
230 | } | |
231 | fitter.Eval(); | |
232 | TVectorD param(6); | |
233 | fitter.GetParameters(param); | |
234 | param0[0] = param[0]; | |
235 | param0[1] = param[1]; | |
236 | param0[2] = param[2]; | |
237 | param0[3] = param[3]; | |
238 | param0[4] = param[4]; | |
239 | param0[5] = param[5]; | |
240 | Float_t chi2 = fitter.GetChisquare()/entries; | |
241 | param0[6] = chi2; | |
242 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
243 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
244 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
245 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
246 | error[4] = (fitter.GetParError(4)*TMath::Sqrt(chi2)); | |
247 | error[5] = (fitter.GetParError(5)*TMath::Sqrt(chi2)); | |
248 | } | |
249 | ||
250 | ||
251 | ||
252 | ||
253 | ||
254 | void AliTPCClusterParam::FitResol1(TTree * tree, Int_t dim, Float_t *param0, Float_t *error){ | |
255 | // | |
256 | // Fit z - angular dependence of resolution - pad length scaling | |
257 | // | |
258 | // Int_t dim=0, type=0; | |
259 | char varVal[100]; | |
260 | sprintf(varVal,"Resol:AngleM*sqrt(Length):Zm/Length"); | |
261 | char varErr[100]; | |
262 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
263 | char varCut[100]; | |
264 | sprintf(varCut,"Dim==%d&&QMean<0",dim); | |
265 | // | |
266 | Int_t entries = tree->Draw(varVal,varCut); | |
267 | Float_t px[10000], py[10000], pz[10000]; | |
268 | Float_t ex[10000], ey[10000], ez[10000]; | |
269 | // | |
270 | tree->Draw(varErr,varCut); | |
271 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
272 | ex[ipoint]= tree->GetV3()[ipoint]; | |
273 | ey[ipoint]= tree->GetV2()[ipoint]; | |
274 | ez[ipoint]= tree->GetV1()[ipoint]; | |
275 | } | |
276 | tree->Draw(varVal,varCut); | |
277 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
278 | px[ipoint]= tree->GetV3()[ipoint]; | |
279 | py[ipoint]= tree->GetV2()[ipoint]; | |
280 | pz[ipoint]= tree->GetV1()[ipoint]; | |
281 | } | |
282 | ||
283 | // | |
284 | TLinearFitter fitter(3,"hyp2"); | |
285 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
286 | Float_t val = pz[ipoint]*pz[ipoint]; | |
287 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
288 | Double_t x[2]; | |
289 | x[0] = px[ipoint]; | |
290 | x[1] = py[ipoint]*py[ipoint]; | |
291 | fitter.AddPoint(x,val,err); | |
292 | } | |
293 | fitter.Eval(); | |
294 | TVectorD param(3); | |
295 | fitter.GetParameters(param); | |
296 | param0[0] = param[0]; | |
297 | param0[1] = param[1]; | |
298 | param0[2] = param[2]; | |
299 | Float_t chi2 = fitter.GetChisquare()/entries; | |
300 | param0[3] = chi2; | |
301 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
302 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
303 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
304 | } | |
305 | ||
306 | void AliTPCClusterParam::FitResolQ(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
307 | // | |
308 | // Fit z - angular dependence of resolution - Q scaling | |
309 | // | |
310 | // Int_t dim=0, type=0; | |
311 | char varVal[100]; | |
312 | sprintf(varVal,"Resol:AngleM/sqrt(QMean):Zm/QMean"); | |
313 | char varVal0[100]; | |
314 | sprintf(varVal0,"Resol:AngleM:Zm"); | |
315 | // | |
316 | char varErr[100]; | |
317 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
318 | char varCut[100]; | |
319 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean>0",dim,type); | |
320 | // | |
321 | Int_t entries = tree->Draw(varVal,varCut); | |
322 | Float_t px[20000], py[20000], pz[20000], pu[20000], pt[20000]; | |
323 | Float_t ex[20000], ey[20000], ez[20000]; | |
324 | // | |
325 | tree->Draw(varErr,varCut); | |
326 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
327 | ex[ipoint]= tree->GetV3()[ipoint]; | |
328 | ey[ipoint]= tree->GetV2()[ipoint]; | |
329 | ez[ipoint]= tree->GetV1()[ipoint]; | |
330 | } | |
331 | tree->Draw(varVal,varCut); | |
332 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
333 | px[ipoint]= tree->GetV3()[ipoint]; | |
334 | py[ipoint]= tree->GetV2()[ipoint]; | |
335 | pz[ipoint]= tree->GetV1()[ipoint]; | |
336 | } | |
337 | tree->Draw(varVal0,varCut); | |
338 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
339 | pu[ipoint]= tree->GetV3()[ipoint]; | |
340 | pt[ipoint]= tree->GetV2()[ipoint]; | |
341 | } | |
342 | ||
343 | // | |
344 | TLinearFitter fitter(5,"hyp4"); | |
345 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
346 | Float_t val = pz[ipoint]*pz[ipoint]; | |
347 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
348 | Double_t x[4]; | |
349 | x[0] = pu[ipoint]; | |
350 | x[1] = pt[ipoint]*pt[ipoint]; | |
351 | x[2] = px[ipoint]; | |
352 | x[3] = py[ipoint]*py[ipoint]; | |
353 | fitter.AddPoint(x,val,err); | |
354 | } | |
355 | ||
356 | fitter.Eval(); | |
357 | TVectorD param(5); | |
358 | fitter.GetParameters(param); | |
359 | param0[0] = param[0]; | |
360 | param0[1] = param[1]; | |
361 | param0[2] = param[2]; | |
362 | param0[3] = param[3]; | |
363 | param0[4] = param[4]; | |
364 | Float_t chi2 = fitter.GetChisquare()/entries; | |
365 | param0[5] = chi2; | |
366 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
367 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
368 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
369 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
370 | error[4] = (fitter.GetParError(4)*TMath::Sqrt(chi2)); | |
371 | } | |
372 | ||
373 | void AliTPCClusterParam::FitResolQPar(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
374 | // | |
375 | // Fit z - angular dependence of resolution - Q scaling - parabolic correction | |
376 | // | |
377 | // Int_t dim=0, type=0; | |
378 | char varVal[100]; | |
379 | sprintf(varVal,"Resol:AngleM/sqrt(QMean):Zm/QMean"); | |
380 | char varVal0[100]; | |
381 | sprintf(varVal0,"Resol:AngleM:Zm"); | |
382 | // | |
383 | char varErr[100]; | |
384 | sprintf(varErr,"Sigma:AngleS:Zs"); | |
385 | char varCut[100]; | |
386 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean>0",dim,type); | |
387 | // | |
388 | Int_t entries = tree->Draw(varVal,varCut); | |
389 | Float_t px[20000], py[20000], pz[20000], pu[20000], pt[20000]; | |
390 | Float_t ex[20000], ey[20000], ez[20000]; | |
391 | // | |
392 | tree->Draw(varErr,varCut); | |
393 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
394 | ex[ipoint]= tree->GetV3()[ipoint]; | |
395 | ey[ipoint]= tree->GetV2()[ipoint]; | |
396 | ez[ipoint]= tree->GetV1()[ipoint]; | |
397 | } | |
398 | tree->Draw(varVal,varCut); | |
399 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
400 | px[ipoint]= tree->GetV3()[ipoint]; | |
401 | py[ipoint]= tree->GetV2()[ipoint]; | |
402 | pz[ipoint]= tree->GetV1()[ipoint]; | |
403 | } | |
404 | tree->Draw(varVal0,varCut); | |
405 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
406 | pu[ipoint]= tree->GetV3()[ipoint]; | |
407 | pt[ipoint]= tree->GetV2()[ipoint]; | |
408 | } | |
409 | ||
410 | // | |
411 | TLinearFitter fitter(8,"hyp7"); | |
412 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
413 | Float_t val = pz[ipoint]*pz[ipoint]; | |
414 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
415 | Double_t x[7]; | |
416 | x[0] = pu[ipoint]; | |
417 | x[1] = pt[ipoint]*pt[ipoint]; | |
418 | x[2] = x[0]*x[0]; | |
419 | x[3] = x[1]*x[1]; | |
420 | x[4] = x[0]*x[1]; | |
421 | x[5] = px[ipoint]; | |
422 | x[6] = py[ipoint]*py[ipoint]; | |
423 | // | |
424 | fitter.AddPoint(x,val,err); | |
425 | } | |
426 | ||
427 | fitter.Eval(); | |
428 | TVectorD param(8); | |
429 | fitter.GetParameters(param); | |
430 | param0[0] = param[0]; | |
431 | param0[1] = param[1]; | |
432 | param0[2] = param[2]; | |
433 | param0[3] = param[3]; | |
434 | param0[4] = param[4]; | |
435 | param0[5] = param[5]; | |
436 | param0[6] = param[6]; | |
437 | param0[7] = param[7]; | |
438 | ||
439 | Float_t chi2 = fitter.GetChisquare()/entries; | |
440 | param0[8] = chi2; | |
441 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
442 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
443 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
444 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
445 | error[4] = (fitter.GetParError(4)*TMath::Sqrt(chi2)); | |
446 | error[5] = (fitter.GetParError(5)*TMath::Sqrt(chi2)); | |
447 | error[6] = (fitter.GetParError(6)*TMath::Sqrt(chi2)); | |
448 | error[7] = (fitter.GetParError(7)*TMath::Sqrt(chi2)); | |
449 | } | |
450 | ||
451 | ||
452 | ||
453 | void AliTPCClusterParam::FitRMS0(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
454 | // | |
455 | // Fit z - angular dependence of resolution | |
456 | // | |
457 | // Int_t dim=0, type=0; | |
458 | char varVal[100]; | |
459 | sprintf(varVal,"RMSm:AngleM:Zm"); | |
460 | char varErr[100]; | |
461 | sprintf(varErr,"sqrt((1./(100.*sqrt(12.))^2)+RMSe0^2):AngleS:Zs"); | |
462 | char varCut[100]; | |
463 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean<0",dim,type); | |
464 | // | |
465 | Int_t entries = tree->Draw(varVal,varCut); | |
466 | Float_t px[10000], py[10000], pz[10000]; | |
467 | Float_t ex[10000], ey[10000], ez[10000]; | |
468 | // | |
469 | tree->Draw(varErr,varCut); | |
470 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
471 | ex[ipoint]= tree->GetV3()[ipoint]; | |
472 | ey[ipoint]= tree->GetV2()[ipoint]; | |
473 | ez[ipoint]= tree->GetV1()[ipoint]; | |
474 | } | |
475 | tree->Draw(varVal,varCut); | |
476 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
477 | px[ipoint]= tree->GetV3()[ipoint]; | |
478 | py[ipoint]= tree->GetV2()[ipoint]; | |
479 | pz[ipoint]= tree->GetV1()[ipoint]; | |
480 | } | |
481 | ||
482 | // | |
483 | TLinearFitter fitter(3,"hyp2"); | |
484 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
485 | Float_t val = pz[ipoint]*pz[ipoint]; | |
486 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
487 | Double_t x[2]; | |
488 | x[0] = px[ipoint]; | |
489 | x[1] = py[ipoint]*py[ipoint]; | |
490 | fitter.AddPoint(x,val,err); | |
491 | } | |
492 | fitter.Eval(); | |
493 | TVectorD param(3); | |
494 | fitter.GetParameters(param); | |
495 | param0[0] = param[0]; | |
496 | param0[1] = param[1]; | |
497 | param0[2] = param[2]; | |
498 | Float_t chi2 = fitter.GetChisquare()/entries; | |
499 | param0[3] = chi2; | |
500 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
501 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
502 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
503 | } | |
504 | ||
505 | void AliTPCClusterParam::FitRMS1(TTree * tree, Int_t dim, Float_t *param0, Float_t *error){ | |
506 | // | |
507 | // Fit z - angular dependence of resolution - pad length scaling | |
508 | // | |
509 | // Int_t dim=0, type=0; | |
510 | char varVal[100]; | |
511 | sprintf(varVal,"RMSm:AngleM*Length:Zm"); | |
512 | char varErr[100]; | |
513 | sprintf(varErr,"sqrt((1./(100.*sqrt(12.))^2)+RMSe0^2):AngleS:Pad"); | |
514 | char varCut[100]; | |
515 | sprintf(varCut,"Dim==%d&&QMean<0",dim); | |
516 | // | |
517 | Int_t entries = tree->Draw(varVal,varCut); | |
518 | Float_t px[10000], py[10000], pz[10000]; | |
519 | Float_t type[10000], ey[10000], ez[10000]; | |
520 | // | |
521 | tree->Draw(varErr,varCut); | |
522 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
523 | type[ipoint] = tree->GetV3()[ipoint]; | |
524 | ey[ipoint] = tree->GetV2()[ipoint]; | |
525 | ez[ipoint] = tree->GetV1()[ipoint]; | |
526 | } | |
527 | tree->Draw(varVal,varCut); | |
528 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
529 | px[ipoint]= tree->GetV3()[ipoint]; | |
530 | py[ipoint]= tree->GetV2()[ipoint]; | |
531 | pz[ipoint]= tree->GetV1()[ipoint]; | |
532 | } | |
533 | ||
534 | // | |
535 | TLinearFitter fitter(4,"hyp3"); | |
536 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
537 | Float_t val = pz[ipoint]*pz[ipoint]; | |
538 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
539 | Double_t x[3]; | |
540 | x[0] = (type[ipoint]<0.5)? 0.:1.; | |
541 | x[1] = px[ipoint]; | |
542 | x[2] = py[ipoint]*py[ipoint]; | |
543 | fitter.AddPoint(x,val,err); | |
544 | } | |
545 | fitter.Eval(); | |
546 | TVectorD param(4); | |
547 | fitter.GetParameters(param); | |
548 | param0[0] = param[0]; | |
549 | param0[1] = param[0]+param[1]; | |
550 | param0[2] = param[2]; | |
551 | param0[3] = param[3]; | |
552 | Float_t chi2 = fitter.GetChisquare()/entries; | |
553 | param0[4] = chi2; | |
554 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
555 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
556 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
557 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
558 | } | |
559 | ||
560 | void AliTPCClusterParam::FitRMSQ(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t *error){ | |
561 | // | |
562 | // Fit z - angular dependence of resolution - Q scaling | |
563 | // | |
564 | // Int_t dim=0, type=0; | |
565 | char varVal[100]; | |
566 | sprintf(varVal,"RMSm:AngleM/sqrt(QMean):Zm/QMean"); | |
567 | char varVal0[100]; | |
568 | sprintf(varVal0,"RMSm:AngleM:Zm"); | |
569 | // | |
570 | char varErr[100]; | |
571 | sprintf(varErr,"sqrt((1./(100.*sqrt(12.))^2)+RMSe0^2):AngleS:Zs"); | |
572 | char varCut[100]; | |
573 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean>0",dim,type); | |
574 | // | |
575 | Int_t entries = tree->Draw(varVal,varCut); | |
576 | Float_t px[20000], py[20000], pz[20000], pu[20000], pt[20000]; | |
577 | Float_t ex[20000], ey[20000], ez[20000]; | |
578 | // | |
579 | tree->Draw(varErr,varCut); | |
580 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
581 | ex[ipoint]= tree->GetV3()[ipoint]; | |
582 | ey[ipoint]= tree->GetV2()[ipoint]; | |
583 | ez[ipoint]= tree->GetV1()[ipoint]; | |
584 | } | |
585 | tree->Draw(varVal,varCut); | |
586 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
587 | px[ipoint]= tree->GetV3()[ipoint]; | |
588 | py[ipoint]= tree->GetV2()[ipoint]; | |
589 | pz[ipoint]= tree->GetV1()[ipoint]; | |
590 | } | |
591 | tree->Draw(varVal0,varCut); | |
592 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
593 | pu[ipoint]= tree->GetV3()[ipoint]; | |
594 | pt[ipoint]= tree->GetV2()[ipoint]; | |
595 | } | |
596 | ||
597 | // | |
598 | TLinearFitter fitter(5,"hyp4"); | |
599 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
600 | Float_t val = pz[ipoint]*pz[ipoint]; | |
601 | Float_t err = 2*pz[ipoint]*TMath::Sqrt(ez[ipoint]*ez[ipoint]+fRatio*fRatio*pz[ipoint]*pz[ipoint]); | |
602 | Double_t x[4]; | |
603 | x[0] = pu[ipoint]; | |
604 | x[1] = pt[ipoint]*pt[ipoint]; | |
605 | x[2] = px[ipoint]; | |
606 | x[3] = py[ipoint]*py[ipoint]; | |
607 | fitter.AddPoint(x,val,err); | |
608 | } | |
609 | ||
610 | fitter.Eval(); | |
611 | TVectorD param(5); | |
612 | fitter.GetParameters(param); | |
613 | param0[0] = param[0]; | |
614 | param0[1] = param[1]; | |
615 | param0[2] = param[2]; | |
616 | param0[3] = param[3]; | |
617 | param0[4] = param[4]; | |
618 | Float_t chi2 = fitter.GetChisquare()/entries; | |
619 | param0[5] = chi2; | |
620 | error[0] = (fitter.GetParError(0)*TMath::Sqrt(chi2)); | |
621 | error[1] = (fitter.GetParError(1)*TMath::Sqrt(chi2)); | |
622 | error[2] = (fitter.GetParError(2)*TMath::Sqrt(chi2)); | |
623 | error[3] = (fitter.GetParError(3)*TMath::Sqrt(chi2)); | |
624 | error[4] = (fitter.GetParError(4)*TMath::Sqrt(chi2)); | |
625 | } | |
626 | ||
627 | ||
628 | void AliTPCClusterParam::FitRMSSigma(TTree * tree, Int_t dim, Int_t type, Float_t *param0, Float_t */*error*/){ | |
629 | // | |
630 | // Fit z - angular dependence of resolution - Q scaling | |
631 | // | |
632 | // Int_t dim=0, type=0; | |
633 | char varVal[100]; | |
634 | sprintf(varVal,"RMSs:RMSm"); | |
635 | // | |
636 | char varCut[100]; | |
637 | sprintf(varCut,"Dim==%d&&Pad==%d&&QMean<0",dim,type); | |
638 | // | |
639 | Int_t entries = tree->Draw(varVal,varCut); | |
640 | Float_t px[20000], py[20000]; | |
641 | // | |
642 | tree->Draw(varVal,varCut); | |
643 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
644 | px[ipoint]= tree->GetV2()[ipoint]; | |
645 | py[ipoint]= tree->GetV1()[ipoint]; | |
646 | } | |
647 | TLinearFitter fitter(2,"pol1"); | |
648 | for (Int_t ipoint=0; ipoint<entries; ipoint++){ | |
649 | Float_t val = py[ipoint]; | |
650 | Float_t err = fRatio*px[ipoint]; | |
651 | Double_t x[4]; | |
652 | x[0] = px[ipoint]; | |
653 | fitter.AddPoint(x,val,err); | |
654 | } | |
655 | fitter.Eval(); | |
656 | param0[0]= fitter.GetParameter(0); | |
657 | param0[1]= fitter.GetParameter(1); | |
658 | } | |
659 | ||
660 | ||
661 | ||
662 | Float_t AliTPCClusterParam::GetError0(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
663 | // | |
664 | // | |
665 | // | |
666 | Float_t value=0; | |
667 | value += fParamS0[dim][type][0]; | |
668 | value += fParamS0[dim][type][1]*z; | |
669 | value += fParamS0[dim][type][2]*angle*angle; | |
670 | value = TMath::Sqrt(TMath::Abs(value)); | |
671 | return value; | |
672 | } | |
673 | ||
674 | ||
675 | Float_t AliTPCClusterParam::GetError0Par(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
676 | // | |
677 | // | |
678 | // | |
679 | Float_t value=0; | |
680 | value += fParamS0Par[dim][type][0]; | |
681 | value += fParamS0Par[dim][type][1]*z; | |
682 | value += fParamS0Par[dim][type][2]*angle*angle; | |
683 | value += fParamS0Par[dim][type][3]*z*z; | |
684 | value += fParamS0Par[dim][type][4]*angle*angle*angle*angle; | |
685 | value += fParamS0Par[dim][type][5]*z*angle*angle; | |
686 | value = TMath::Sqrt(TMath::Abs(value)); | |
687 | return value; | |
688 | } | |
689 | ||
690 | ||
691 | ||
692 | Float_t AliTPCClusterParam::GetError1(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
693 | // | |
694 | // | |
695 | // | |
696 | Float_t value=0; | |
697 | Float_t length=0.75; | |
698 | if (type==1) length=1; | |
699 | if (type==2) length=1.5; | |
700 | value += fParamS1[dim][0]; | |
701 | value += fParamS1[dim][1]*z/length; | |
702 | value += fParamS1[dim][2]*angle*angle*length; | |
703 | value = TMath::Sqrt(TMath::Abs(value)); | |
704 | return value; | |
705 | } | |
706 | ||
707 | Float_t AliTPCClusterParam::GetErrorQ(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
708 | // | |
709 | // | |
710 | // | |
711 | Float_t value=0; | |
712 | value += fParamSQ[dim][type][0]; | |
713 | value += fParamSQ[dim][type][1]*z; | |
714 | value += fParamSQ[dim][type][2]*angle*angle; | |
715 | value += fParamSQ[dim][type][3]*z/Qmean; | |
716 | value += fParamSQ[dim][type][4]*angle*angle/Qmean; | |
717 | value = TMath::Sqrt(TMath::Abs(value)); | |
718 | return value; | |
719 | ||
720 | ||
721 | } | |
722 | ||
723 | Float_t AliTPCClusterParam::GetErrorQPar(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
724 | // | |
725 | // | |
726 | // | |
727 | Float_t value=0; | |
728 | value += fParamSQPar[dim][type][0]; | |
729 | value += fParamSQPar[dim][type][1]*z; | |
730 | value += fParamSQPar[dim][type][2]*angle*angle; | |
731 | value += fParamSQPar[dim][type][3]*z*z; | |
732 | value += fParamSQPar[dim][type][4]*angle*angle*angle*angle; | |
733 | value += fParamSQPar[dim][type][5]*z*angle*angle; | |
734 | value += fParamSQPar[dim][type][6]*z/Qmean; | |
735 | value += fParamSQPar[dim][type][7]*angle*angle/Qmean; | |
736 | value = TMath::Sqrt(TMath::Abs(value)); | |
737 | return value; | |
738 | ||
739 | ||
740 | } | |
741 | ||
742 | Float_t AliTPCClusterParam::GetErrorQParScaled(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
743 | // | |
744 | // | |
745 | // | |
746 | Float_t value=0; | |
747 | value += fParamSQPar[dim][type][0]; | |
748 | value += fParamSQPar[dim][type][1]*z; | |
749 | value += fParamSQPar[dim][type][2]*angle*angle; | |
750 | value += fParamSQPar[dim][type][3]*z*z; | |
751 | value += fParamSQPar[dim][type][4]*angle*angle*angle*angle; | |
752 | value += fParamSQPar[dim][type][5]*z*angle*angle; | |
753 | value += fParamSQPar[dim][type][6]*z/Qmean; | |
754 | value += fParamSQPar[dim][type][7]*angle*angle/Qmean; | |
755 | Float_t valueMean = GetError0Par(dim,type,z,angle); | |
756 | value -= 0.35*0.35*valueMean*valueMean; | |
757 | value = TMath::Sqrt(TMath::Abs(value)); | |
758 | return value; | |
759 | ||
760 | ||
761 | } | |
762 | ||
763 | Float_t AliTPCClusterParam::GetRMS0(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
764 | // | |
765 | // calculate mean RMS of cluster - z,angle - parameters for each pad and dimension separatelly | |
766 | // | |
767 | Float_t value=0; | |
768 | value += fParamRMS0[dim][type][0]; | |
769 | value += fParamRMS0[dim][type][1]*z; | |
770 | value += fParamRMS0[dim][type][2]*angle*angle; | |
771 | value = TMath::Sqrt(TMath::Abs(value)); | |
772 | return value; | |
773 | } | |
774 | ||
775 | Float_t AliTPCClusterParam::GetRMS1(Int_t dim, Int_t type, Float_t z, Float_t angle){ | |
776 | // | |
777 | // calculate mean RMS of cluster - z,angle - pad length scalling | |
778 | // | |
779 | Float_t value=0; | |
780 | Float_t length=0.75; | |
781 | if (type==1) length=1; | |
782 | if (type==2) length=1.5; | |
783 | if (type==0){ | |
784 | value += fParamRMS1[dim][0]; | |
785 | }else{ | |
786 | value += fParamRMS1[dim][1]; | |
787 | } | |
788 | value += fParamRMS1[dim][2]*z; | |
789 | value += fParamRMS1[dim][3]*angle*angle*length*length; | |
790 | value = TMath::Sqrt(TMath::Abs(value)); | |
791 | return value; | |
792 | } | |
793 | ||
794 | Float_t AliTPCClusterParam::GetRMSQ(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
795 | // | |
796 | // calculate mean RMS of cluster - z,angle, Q dependence | |
797 | // | |
798 | Float_t value=0; | |
799 | value += fParamRMSQ[dim][type][0]; | |
800 | value += fParamRMSQ[dim][type][1]*z; | |
801 | value += fParamRMSQ[dim][type][2]*angle*angle; | |
802 | value += fParamRMSQ[dim][type][3]*z/Qmean; | |
803 | value += fParamRMSQ[dim][type][4]*angle*angle/Qmean; | |
804 | value = TMath::Sqrt(TMath::Abs(value)); | |
805 | return value; | |
806 | } | |
807 | ||
808 | Float_t AliTPCClusterParam::GetRMSSigma(Int_t dim, Int_t type, Float_t z, Float_t angle, Float_t Qmean){ | |
809 | // | |
810 | // calculates RMS of signal shape fluctuation | |
811 | // | |
812 | Float_t mean = GetRMSQ(dim,type,z,angle,Qmean); | |
813 | Float_t value = fRMSSigmaFit[dim][type][0]; | |
814 | value+= fRMSSigmaFit[dim][type][1]*mean; | |
815 | return value; | |
816 | } | |
817 | ||
818 | 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){ | |
819 | // | |
820 | // calculates vallue - sigma distortion contribution | |
821 | // | |
822 | Double_t value =0; | |
823 | // | |
824 | Float_t rmsMeanQ = GetRMSQ(dim,type,z,angle,Qmean); | |
825 | if (rmsL<rmsMeanQ) return value; | |
826 | // | |
827 | Float_t rmsSigma = GetRMSSigma(dim,type,z,angle,Qmean); | |
828 | // | |
829 | if ((rmsM-rmsMeanQ)>2.0*(rmsSigma+fErrorRMSSys[dim])){ | |
830 | //1.5 sigma cut on mean | |
831 | value+= rmsL*rmsL+2*rmsM*rmsM-3*rmsMeanQ*rmsMeanQ; | |
832 | }else{ | |
833 | if ((rmsL-rmsMeanQ)>3.*(rmsSigma+fErrorRMSSys[dim])){ | |
834 | //3 sigma cut on local | |
835 | value+= rmsL*rmsL-rmsMeanQ*rmsMeanQ; | |
836 | } | |
837 | } | |
8076baa0 | 838 | return TMath::Sqrt(TMath::Abs(value)); |
12ca5da1 | 839 | } |
840 | ||
841 | ||
842 | ||
843 | void AliTPCClusterParam::FitData(TTree * tree){ | |
844 | // | |
845 | // make fits for error param and shape param | |
846 | // | |
847 | FitResol(tree); | |
848 | FitRMS(tree); | |
849 | ||
850 | } | |
851 | ||
852 | void AliTPCClusterParam::FitResol(TTree * tree){ | |
853 | // | |
854 | SetInstance(this); | |
855 | for (Int_t idir=0;idir<2; idir++){ | |
856 | for (Int_t itype=0; itype<3; itype++){ | |
857 | Float_t param0[10]; | |
858 | Float_t error0[10]; | |
859 | // model error param | |
860 | FitResol0(tree, idir, itype,param0,error0); | |
861 | printf("\nResol\t%d\t%d\tchi2=%f\n",idir,itype,param0[3]); | |
862 | printf("%f\t%f\t%f\n", param0[0],param0[1],param0[2]); | |
863 | printf("%f\t%f\t%f\n", error0[0],error0[1],error0[2]); | |
864 | for (Int_t ipar=0;ipar<4; ipar++){ | |
865 | fParamS0[idir][itype][ipar] = param0[ipar]; | |
866 | fErrorS0[idir][itype][ipar] = param0[ipar]; | |
867 | } | |
868 | // error param with parabolic correction | |
869 | FitResol0Par(tree, idir, itype,param0,error0); | |
870 | printf("\nResolPar\t%d\t%d\tchi2=%f\n",idir,itype,param0[6]); | |
871 | 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]); | |
872 | 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]); | |
873 | for (Int_t ipar=0;ipar<7; ipar++){ | |
874 | fParamS0Par[idir][itype][ipar] = param0[ipar]; | |
875 | fErrorS0Par[idir][itype][ipar] = param0[ipar]; | |
876 | } | |
877 | // | |
878 | FitResolQ(tree, idir, itype,param0,error0); | |
879 | printf("\nResolQ\t%d\t%d\tchi2=%f\n",idir,itype,param0[5]); | |
880 | printf("%f\t%f\t%f\t%f\t%f\n", param0[0],param0[1],param0[2],param0[3],param0[4]); | |
881 | printf("%f\t%f\t%f\t%f\t%f\n", error0[0],error0[1],error0[2],error0[3],error0[4]); | |
882 | for (Int_t ipar=0;ipar<6; ipar++){ | |
883 | fParamSQ[idir][itype][ipar] = param0[ipar]; | |
884 | fErrorSQ[idir][itype][ipar] = param0[ipar]; | |
885 | } | |
886 | // | |
887 | FitResolQPar(tree, idir, itype,param0,error0); | |
888 | printf("\nResolQ\t%d\t%d\tchi2=%f\n",idir,itype,param0[8]); | |
889 | 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]); | |
890 | 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]); | |
891 | for (Int_t ipar=0;ipar<9; ipar++){ | |
892 | fParamSQPar[idir][itype][ipar] = param0[ipar]; | |
893 | fErrorSQPar[idir][itype][ipar] = param0[ipar]; | |
894 | } | |
895 | } | |
896 | } | |
897 | // | |
898 | printf("Resol z-scaled\n"); | |
899 | for (Int_t idir=0;idir<2; idir++){ | |
900 | Float_t param0[4]; | |
901 | Float_t error0[4]; | |
902 | FitResol1(tree, idir,param0,error0); | |
903 | printf("\nResol\t%d\tchi2=%f\n",idir,param0[3]); | |
904 | printf("%f\t%f\t%f\n", param0[0],param0[1],param0[2]); | |
905 | printf("%f\t%f\t%f\n", error0[0],error0[1],error0[2]); | |
906 | for (Int_t ipar=0;ipar<4; ipar++){ | |
907 | fParamS1[idir][ipar] = param0[ipar]; | |
908 | fErrorS1[idir][ipar] = param0[ipar]; | |
909 | } | |
910 | } | |
911 | ||
912 | for (Int_t idir=0;idir<2; idir++){ | |
913 | printf("\nDirection %d\n",idir); | |
914 | printf("%d\t%f\t%f\t%f\n", -1,fParamS1[idir][0],fParamS1[idir][1],fParamS1[idir][2]); | |
915 | for (Int_t itype=0; itype<3; itype++){ | |
916 | Float_t length=0.75; | |
917 | if (itype==1) length=1; | |
918 | if (itype==2) length=1.5; | |
919 | 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)); | |
920 | } | |
921 | } | |
922 | } | |
923 | ||
924 | ||
925 | ||
926 | void AliTPCClusterParam::FitRMS(TTree * tree){ | |
927 | // | |
928 | SetInstance(this); | |
929 | for (Int_t idir=0;idir<2; idir++){ | |
930 | for (Int_t itype=0; itype<3; itype++){ | |
931 | Float_t param0[6]; | |
932 | Float_t error0[6]; | |
933 | FitRMS0(tree, idir, itype,param0,error0); | |
934 | printf("\nRMS\t%d\t%d\tchi2=%f\n",idir,itype,param0[3]); | |
935 | printf("%f\t%f\t%f\n", param0[0],param0[1],param0[2]); | |
936 | printf("%f\t%f\t%f\n", error0[0],error0[1],error0[2]); | |
937 | for (Int_t ipar=0;ipar<4; ipar++){ | |
938 | fParamRMS0[idir][itype][ipar] = param0[ipar]; | |
939 | fErrorRMS0[idir][itype][ipar] = param0[ipar]; | |
940 | } | |
941 | FitRMSQ(tree, idir, itype,param0,error0); | |
942 | printf("\nRMSQ\t%d\t%d\tchi2=%f\n",idir,itype,param0[5]); | |
943 | printf("%f\t%f\t%f\t%f\t%f\n", param0[0],param0[1],param0[2],param0[3],param0[4]); | |
944 | printf("%f\t%f\t%f\t%f\t%f\n", error0[0],error0[1],error0[2],error0[3],error0[4]); | |
945 | for (Int_t ipar=0;ipar<6; ipar++){ | |
946 | fParamRMSQ[idir][itype][ipar] = param0[ipar]; | |
947 | fErrorRMSQ[idir][itype][ipar] = param0[ipar]; | |
948 | } | |
949 | } | |
950 | } | |
951 | // | |
952 | printf("RMS z-scaled\n"); | |
953 | for (Int_t idir=0;idir<2; idir++){ | |
954 | Float_t param0[5]; | |
955 | Float_t error0[5]; | |
956 | FitRMS1(tree, idir,param0,error0); | |
957 | printf("\nRMS\t%d\tchi2=%f\n",idir,param0[4]); | |
958 | printf("%f\t%f\t%f\t%f\n", param0[0],param0[1],param0[2], param0[3]); | |
959 | printf("%f\t%f\t%f\t%f\n", error0[0],error0[1],error0[2], error0[3]); | |
960 | for (Int_t ipar=0;ipar<5; ipar++){ | |
961 | fParamRMS1[idir][ipar] = param0[ipar]; | |
962 | fErrorRMS1[idir][ipar] = param0[ipar]; | |
963 | } | |
964 | } | |
965 | ||
966 | for (Int_t idir=0;idir<2; idir++){ | |
967 | printf("\nDirection %d\n",idir); | |
968 | printf("%d\t%f\t%f\t%f\t%f\n", -1,fParamRMS1[idir][0],fParamRMS1[idir][1],fParamRMS1[idir][2], fParamRMS1[idir][3]); | |
969 | for (Int_t itype=0; itype<3; itype++){ | |
970 | Float_t length=0.75; | |
971 | if (itype==1) length=1; | |
972 | if (itype==2) length=1.5; | |
973 | 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); | |
974 | 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); | |
975 | } | |
976 | } | |
977 | // | |
978 | // Fit RMS sigma | |
979 | // | |
980 | printf("RMS fluctuation parameterization \n"); | |
981 | for (Int_t idir=0;idir<2; idir++){ | |
982 | for (Int_t itype=0; itype<3; itype++){ | |
983 | Float_t param0[5]; | |
984 | Float_t error0[5]; | |
985 | FitRMSSigma(tree, idir,itype,param0,error0); | |
986 | printf("\t%d\t%d\t%f\t%f\n", idir, itype, param0[0],param0[1]); | |
987 | for (Int_t ipar=0;ipar<2; ipar++){ | |
988 | fRMSSigmaFit[idir][itype][ipar] = param0[ipar]; | |
989 | } | |
990 | } | |
991 | } | |
992 | // | |
993 | // store systematic error end RMS fluctuation parameterization | |
994 | // | |
995 | TH1F hratio("hratio","hratio",100,-0.1,0.1); | |
996 | tree->Draw("(RMSm-AliTPCClusterParam::SGetRMSQ(Dim,Pad,Zm,AngleM,QMean))/RMSm>>hratio","Dim==0&&QMean>0"); | |
997 | fErrorRMSSys[0] = hratio.GetRMS(); | |
998 | tree->Draw("(RMSm-AliTPCClusterParam::SGetRMSQ(Dim,Pad,Zm,AngleM,QMean))/RMSm>>hratio","Dim==1&&QMean>0"); | |
999 | fErrorRMSSys[1] = hratio.GetRMS(); | |
1000 | TH1F hratioR("hratioR","hratioR",100,0,0.2); | |
1001 | tree->Draw("RMSs/RMSm>>hratioR","Dim==0&&QMean>0"); | |
1002 | fRMSSigmaRatio[0][0]=hratioR.GetMean(); | |
1003 | fRMSSigmaRatio[0][1]=hratioR.GetRMS(); | |
1004 | tree->Draw("RMSs/RMSm>>hratioR","Dim==1&&QMean>0"); | |
1005 | fRMSSigmaRatio[1][0]=hratioR.GetMean(); | |
1006 | fRMSSigmaRatio[1][1]=hratioR.GetRMS(); | |
1007 | } | |
1008 | ||
1009 | void AliTPCClusterParam::Test(TTree * tree, const char *output){ | |
1010 | // | |
1011 | // Draw standard quality histograms to output file | |
1012 | // | |
1013 | SetInstance(this); | |
1014 | TFile f(output,"recreate"); | |
1015 | f.cd(); | |
1016 | // | |
1017 | // 1D histograms - resolution | |
1018 | // | |
1019 | for (Int_t idim=0; idim<2; idim++){ | |
1020 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1021 | char hname1[300]; | |
1022 | char hcut1[300]; | |
1023 | char hexp1[300]; | |
1024 | // | |
1025 | sprintf(hname1,"Delta0 Dir %d Pad %d",idim,ipad); | |
1026 | sprintf(hcut1,"Dim==%d&&QMean<0&&Pad==%d",idim,ipad); | |
1027 | sprintf(hexp1,"(Resol-AliTPCClusterParam::SGetError0(Dim,Pad,Zm,AngleM))/Resol>>%s",hname1); | |
1028 | TH1F his1DRel0(hname1, hname1, 100,-0.2, 0.2); | |
1029 | sprintf(hname1,"Dim==%d&&QMean<0&&Pad=%d",idim,ipad); | |
1030 | tree->Draw(hexp1,hcut1,""); | |
1031 | his1DRel0.Write(); | |
1032 | // | |
1033 | sprintf(hname1,"Delta0Par Dir %d Pad %d",idim,ipad); | |
1034 | sprintf(hcut1,"Dim==%d&&QMean<0&&Pad==%d",idim,ipad); | |
1035 | sprintf(hexp1,"(Resol-AliTPCClusterParam::SGetError0Par(Dim,Pad,Zm,AngleM))/Resol>>%s",hname1); | |
1036 | TH1F his1DRel0Par(hname1, hname1, 100,-0.2, 0.2); | |
1037 | sprintf(hname1,"Dim==%d&&QMean<0&&Pad=%d",idim,ipad); | |
1038 | tree->Draw(hexp1,hcut1,""); | |
1039 | his1DRel0Par.Write(); | |
1040 | // | |
1041 | } | |
1042 | } | |
1043 | // | |
1044 | // 2D histograms - resolution | |
1045 | // | |
1046 | for (Int_t idim=0; idim<2; idim++){ | |
1047 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1048 | char hname1[300]; | |
1049 | char hcut1[300]; | |
1050 | char hexp1[300]; | |
1051 | // | |
1052 | sprintf(hname1,"2DDelta0 Dir %d Pad %d",idim,ipad); | |
1053 | sprintf(hcut1,"Dim==%d&&QMean<0&&Pad==%d",idim,ipad); | |
1054 | sprintf(hexp1,"(Resol-AliTPCClusterParam::SGetError0(Dim,Pad,Zm,AngleM))/Resol:AngleM:Zm>>%s",hname1); | |
1055 | TProfile2D profDRel0(hname1, hname1, 6,0,250,6,0,1); | |
1056 | sprintf(hname1,"Dim==%d&&QMean<0&&Pad=%d",idim,ipad); | |
1057 | tree->Draw(hexp1,hcut1,""); | |
1058 | profDRel0.Write(); | |
1059 | // | |
1060 | sprintf(hname1,"2DDelta0Par Dir %d Pad %d",idim,ipad); | |
1061 | sprintf(hcut1,"Dim==%d&&QMean<0&&Pad==%d",idim,ipad); | |
1062 | sprintf(hexp1,"(Resol-AliTPCClusterParam::SGetError0Par(Dim,Pad,Zm,AngleM))/Resol:AngleM:Zm>>%s",hname1); | |
1063 | TProfile2D profDRel0Par(hname1, hname1,6,0,250,6,0,1); | |
1064 | sprintf(hname1,"Dim==%d&&QMean<0&&Pad=%d",idim,ipad); | |
1065 | tree->Draw(hexp1,hcut1,""); | |
1066 | profDRel0Par.Write(); | |
1067 | // | |
1068 | } | |
1069 | } | |
1070 | } | |
1071 | ||
1072 | ||
1073 | ||
1074 | void AliTPCClusterParam::Print(Option_t* /*option*/) const{ | |
1075 | // | |
1076 | // Print param Information | |
1077 | // | |
1078 | ||
1079 | // | |
1080 | // Error parameterization | |
1081 | // | |
1082 | printf("\nResolution Scaled factors\n"); | |
1083 | printf("Dir\tPad\tP0\t\tP1\t\tP2\t\tchi2\n"); | |
8076baa0 | 1084 | 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])), |
1085 | TMath::Sqrt(TMath::Abs(fParamS1[0][2])),TMath::Sqrt(TMath::Abs(fParamS1[0][3]))); | |
12ca5da1 | 1086 | for (Int_t ipad=0; ipad<3; ipad++){ |
1087 | Float_t length=0.75; | |
1088 | if (ipad==1) length=1; | |
1089 | if (ipad==2) length=1.5; | |
1090 | printf("\t%d\t%f\t%f\t%f\t%f\n", ipad, | |
1091 | TMath::Sqrt(TMath::Abs(fParamS0[0][ipad][0])), | |
8076baa0 | 1092 | TMath::Sqrt(TMath::Abs(fParamS0[0][ipad][1]*length)), |
1093 | TMath::Sqrt(TMath::Abs(fParamS0[0][ipad][2]/length)), | |
1094 | TMath::Sqrt(TMath::Abs(fParamS0[0][ipad][3]))); | |
12ca5da1 | 1095 | } |
1096 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1097 | Float_t length=0.75; | |
1098 | if (ipad==1) length=1; | |
1099 | if (ipad==2) length=1.5; | |
1100 | printf("\t%dPar\t%f\t%f\t%f\t%f\n", ipad, | |
1101 | TMath::Sqrt(TMath::Abs(fParamS0Par[0][ipad][0])), | |
8076baa0 | 1102 | TMath::Sqrt(TMath::Abs(fParamS0Par[0][ipad][1]*length)), |
1103 | TMath::Sqrt(TMath::Abs(fParamS0Par[0][ipad][2]/length)), | |
1104 | TMath::Sqrt(TMath::Abs(fParamS0Par[0][ipad][6]))); | |
12ca5da1 | 1105 | } |
1106 | printf("Z\tall\t%f\t%f\t%f\t%f\n", TMath::Sqrt(TMath::Abs(fParamS1[1][0])),TMath::Sqrt(fParamS1[1][1]), | |
1107 | TMath::Sqrt(fParamS1[1][2]), TMath::Sqrt(fParamS1[1][3])); | |
1108 | ||
1109 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1110 | Float_t length=0.75; | |
1111 | if (ipad==1) length=1; | |
1112 | if (ipad==2) length=1.5; | |
1113 | printf("\t%d\t%f\t%f\t%f\t%f\n", ipad, | |
1114 | TMath::Sqrt(TMath::Abs(fParamS0[1][ipad][0])), | |
8076baa0 | 1115 | TMath::Sqrt(TMath::Abs(fParamS0[1][ipad][1]*length)), |
1116 | TMath::Sqrt(TMath::Abs(fParamS0[1][ipad][2]/length)), | |
1117 | TMath::Sqrt(TMath::Abs(fParamS0[1][ipad][3]))); | |
12ca5da1 | 1118 | } |
1119 | for (Int_t ipad=0; ipad<3; ipad++){ | |
1120 | Float_t length=0.75; | |
1121 | if (ipad==1) length=1; | |
1122 | if (ipad==2) length=1.5; | |
1123 | printf("\t%dPar\t%f\t%f\t%f\t%f\n", ipad, | |
8076baa0 | 1124 | TMath::Sqrt(TMath::Abs(TMath::Abs(fParamS0Par[1][ipad][0]))), |
1125 | TMath::Sqrt(TMath::Abs(fParamS0Par[1][ipad][1]*length)), | |
1126 | TMath::Sqrt(TMath::Abs(fParamS0Par[1][ipad][2]/length)), | |
1127 | TMath::Sqrt(TMath::Abs(fParamS0Par[1][ipad][6]))); | |
12ca5da1 | 1128 | } |
1129 | ||
1130 | // | |
1131 | // RMS scaling | |
1132 | // | |
1133 | printf("\n"); | |
1134 | printf("\nRMS Scaled factors\n"); | |
1135 | printf("Dir\tPad\tP00\t\tP01\t\tP1\t\tP2\t\tchi2\n"); | |
8076baa0 | 1136 | printf("Y\tall\t%f\t%f\t%f\t%f\t%f\n", |
1137 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][0])), | |
1138 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][1])), | |
1139 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][2])), | |
1140 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][3])), | |
1141 | TMath::Sqrt(TMath::Abs(fParamRMS1[0][4]))); | |
12ca5da1 | 1142 | for (Int_t ipad=0; ipad<3; ipad++){ |
1143 | Float_t length=0.75; | |
1144 | if (ipad==1) length=1; | |
1145 | if (ipad==2) length=1.5; | |
1146 | if (ipad==0){ | |
1147 | printf("\t%d\t%f\t%f\t%f\t%f\t%f\n", ipad, | |
1148 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][0])), | |
1149 | 0., | |
8076baa0 | 1150 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][1])), |
1151 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][2]/(length*length))), | |
1152 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][3]))); | |
12ca5da1 | 1153 | }else{ |
1154 | printf("\t%d\t%f\t%f\t%f\t%f\t%f\n", ipad, | |
1155 | 0., | |
1156 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][0])), | |
8076baa0 | 1157 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][1])), |
1158 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][2]/(length*length))), | |
1159 | TMath::Sqrt(TMath::Abs(fParamRMS0[0][ipad][3]))); | |
12ca5da1 | 1160 | } |
1161 | } | |
1162 | printf("\n"); | |
8076baa0 | 1163 | printf("Z\tall\t%f\t%f\t%f\t%f\t%f\n", |
1164 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][0])), | |
1165 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][1])), | |
1166 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][2])), | |
1167 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][3])), | |
1168 | TMath::Sqrt(TMath::Abs(fParamRMS1[1][4]))); | |
12ca5da1 | 1169 | for (Int_t ipad=0; ipad<3; ipad++){ |
1170 | Float_t length=0.75; | |
1171 | if (ipad==1) length=1; | |
1172 | if (ipad==2) length=1.5; | |
1173 | if (ipad==0){ | |
1174 | printf("\t%d\t%f\t%f\t%f\t%f\t%f\n", ipad, | |
1175 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][0])), | |
1176 | 0., | |
8076baa0 | 1177 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][1])), |
1178 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][2]/(length*length))), | |
1179 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][3]))); | |
12ca5da1 | 1180 | }else{ |
1181 | printf("\t%d\t%f\t%f\t%f\t%f\t%f\n", ipad, | |
1182 | 0., | |
1183 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][0])), | |
8076baa0 | 1184 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][1])), |
1185 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][2]/(length*length))), | |
1186 | TMath::Sqrt(TMath::Abs(fParamRMS0[1][ipad][3]))); | |
12ca5da1 | 1187 | } |
1188 | } | |
1189 | } | |
1190 | ||
1191 | ||
1192 | ||
1193 | ||
1194 | ||
0a65832b | 1195 | Float_t AliTPCClusterParam::Qnorm(Int_t ipad, Int_t itype, Float_t dr, Float_t ty, Float_t tz){ |
1196 | // get Q normalization | |
1197 | // type - 0 Qtot 1 Qmax | |
1198 | // ipad - 0 (0.75 cm) ,1 (1 cm), 2 (1.5 cm) | |
1199 | // | |
f1afff3b | 1200 | //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); |
1201 | ||
0a65832b | 1202 | if (!fQNorm) return 0; |
1203 | TVectorD * norm = (TVectorD*)fQNorm->At(3*itype+ipad); | |
1204 | if (!norm) return 0; | |
f1afff3b | 1205 | TVectorD &no = *norm; |
1206 | Float_t res = no[0]+ | |
1207 | no[1]*dr+ | |
1208 | no[2]*ty+ | |
1209 | no[3]*tz+ | |
1210 | no[4]*dr*ty+ | |
1211 | no[5]*dr*tz+ | |
1212 | no[6]*ty*tz+ | |
1213 | no[7]*dr*dr+ | |
1214 | no[8]*ty*ty+ | |
1215 | no[9]*tz*tz; | |
1216 | res/=no[0]; | |
0a65832b | 1217 | return res; |
1218 | } | |
1219 | ||
1220 | ||
1221 | ||
1222 | void AliTPCClusterParam::SetQnorm(Int_t ipad, Int_t itype, TVectorD * norm){ | |
1223 | // | |
1224 | // set normalization | |
1225 | // | |
1226 | // type - 0 Qtot 1 Qmax | |
1227 | // ipad - 0 (0.75 cm) ,1 (1 cm), 2 (1.5 cm) | |
1228 | // | |
1229 | ||
1230 | if (fQNorm==0) fQNorm = new TObjArray(6); | |
1231 | fQNorm->AddAt(new TVectorD(*norm), itype*3+ipad); | |
1232 | } |