source: trunk/MagicSoft/Mars/mcalib/MHCalibrationTestCam.cc@ 4109

Last change on this file since 4109 was 3982, checked in by gaug, 22 years ago
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1/* ======================================================================== *\
2!
3! *
4! * This file is part of MARS, the MAGIC Analysis and Reconstruction
5! * Software. It is distributed to you in the hope that it can be a useful
6! * and timesaving tool in analysing Data of imaging Cerenkov telescopes.
7! * It is distributed WITHOUT ANY WARRANTY.
8! *
9! * Permission to use, copy, modify and distribute this software and its
10! * documentation for any purpose is hereby granted without fee,
11! * provided that the above copyright notice appear in all copies and
12! * that both that copyright notice and this permission notice appear
13! * in supporting documentation. It is provided "as is" without express
14! * or implied warranty.
15! *
16!
17!
18! Author(s): Markus Gaug 02/2004 <mailto:markus@ifae.es>
19!
20! Copyright: MAGIC Software Development, 2000-2004
21!
22!
23\* ======================================================================== */
24/////////////////////////////////////////////////////////////////////////////
25//
26// MHCalibrationTestCam
27//
28// Fills the calibrated signal from an MCerPhotEvt into
29// MHCalibrationTestPix for every:
30//
31// - Pixel, stored in the TObjArray's MHCalibrationCam::fHiGainArray
32// or MHCalibrationCam::fHiGainArray, respectively.
33//
34// - Average pixel per AREA index (e.g. inner and outer for the MAGIC camera),
35// stored in the TObjArray's MHCalibrationCam::fAverageHiGainAreas and
36// MHCalibrationCam::fAverageHiGainAreas
37//
38// - Average pixel per camera SECTOR (e.g. sectors 1-6 for the MAGIC camera),
39// stored in the TObjArray's MHCalibrationCam::fAverageHiGainSectors
40// and MHCalibrationCam::fAverageHiGainSectors
41//
42// The signals are filled into a histogram and an array, in order to perform
43// a Fourier analysis (see MHGausEvents). The signals are moreover averaged on an
44// event-by-event basis and written into the corresponding average pixels.
45//
46// The histograms are fitted to a Gaussian, mean and sigma with its errors
47// and the fit probability are extracted. If none of these values are NaN's and
48// if the probability is bigger than MHGausEvents::fProbLimit (default: 0.5%),
49// the fit is declared valid.
50// Otherwise, the fit is repeated within ranges of the previous mean
51// +- MHGausEvents::fPickupLimit (default: 5) sigma (see MHGausEvents::RepeatFit())
52// In case this does not make the fit valid, the histogram means and RMS's are
53// taken directly (see MHGausEvents::BypassFit()) and the following flags are set:
54// - MBadPixelsPix::SetUncalibrated( MBadPixelsPix::kHiGainNotFitted ) and
55// - MBadPixelsPix::SetUnsuitable( MBadPixelsPix::kUnreliableRun )
56//
57// Outliers of more than MHGausEvents::fPickupLimit (default: 5) sigmas
58// from the mean are counted as Pickup events (stored in MHGausEvents::fPickup)
59//
60// The class also fills arrays with the signal vs. event number, creates a fourier
61// spectrum (see MHGausEvents::CreateFourierSpectrum()) and investigates if the
62// projected fourier components follow an exponential distribution.
63// In case that the probability of the exponential fit is less than
64// MHGausEvents::fProbLimit (default: 0.5%), the following flags are set:
65// - MBadPixelsPix::SetUncalibrated( MBadPixelsPix::kHiGainOscillating ) and
66// - MBadPixelsPix::SetUnsuitable( MBadPixelsPix::kUnreliableRun )
67//
68// This same procedure is performed for the average pixels.
69//
70// The following results are written into an MCalibrationCam:
71//
72// - MCalibrationPix::SetMean()
73// - MCalibrationPix::SetMeanErr()
74// - MCalibrationPix::SetSigma()
75// - MCalibrationPix::SetSigmaErr()
76// - MCalibrationPix::SetProb()
77// - MCalibrationPix::SetNumPickup()
78//
79// For all averaged areas, the fitted sigma is multiplied with the square root of
80// the number involved pixels in order to be able to compare it to the average of
81// sigmas in the camera.
82//
83/////////////////////////////////////////////////////////////////////////////
84#include "MHCalibrationTestCam.h"
85#include "MHCalibrationTestPix.h"
86
87#include "MLog.h"
88#include "MLogManip.h"
89
90#include "MParList.h"
91
92#include "MCalibrationCam.h"
93#include "MCalibrationPix.h"
94
95#include "MCerPhotEvt.h"
96#include "MCerPhotPix.h"
97
98#include "MGeomCam.h"
99#include "MGeomPix.h"
100
101#include "MBadPixelsCam.h"
102#include "MBadPixelsPix.h"
103
104ClassImp(MHCalibrationTestCam);
105
106using namespace std;
107// --------------------------------------------------------------------------
108//
109// Default Constructor.
110//
111MHCalibrationTestCam::MHCalibrationTestCam(const char *name, const char *title)
112{
113
114 fName = name ? name : "MHCalibrationTestCam";
115 fTitle = title ? title : "Histogram class for testing the calibration";
116
117 SetAverageNbins(5000);
118}
119
120// --------------------------------------------------------------------------
121//
122// Gets or creates the pointers to:
123// - MCalibrationTestCam
124//
125// Searches pointer to:
126// - MCerPhotEvt
127//
128// Initializes, if empty to MGeomCam::GetNumAreas() for:
129// - MHCalibrationCam::fAverageHiGainAreas, MHCalibrationCam::fAverageLoGainAreas
130//
131// Initializes, if empty to MGeomCam::GetNumSectors() for:
132// - MHCalibrationCam::fAverageHiGainSectors, MHCalibrationCam::fAverageLoGainSectors
133//
134// Calls MHCalibrationCam::InitHists() for every entry in:
135// - MHCalibrationCam::fHiGainArray
136// - MHCalibrationCam::fAverageHiGainAreas
137// - MHCalibrationCam::fAverageHiGainSectors
138//
139// Sets Titles and Names for the Histograms
140// - MHCalibrationCam::fAverageHiGainAreas
141// - MHCalibrationCam::fAverageHiGainSectors
142//
143// Sets number of bins to MHCalibrationCam::fAverageNbins for:
144// - MHCalibrationCam::fAverageHiGainAreas
145// - MHCalibrationCam::fAverageHiGainSectors
146//
147Bool_t MHCalibrationTestCam::ReInitHists(MParList *pList)
148{
149
150 MCerPhotEvt *signal = (MCerPhotEvt*)pList->FindObject("MCerPhotEvt");
151 if (!signal)
152 {
153 *fLog << err << "MCerPhotEvt not found... abort." << endl;
154 return kFALSE;
155 }
156
157 const Int_t npixels = fGeom->GetNumPixels();
158 const Int_t nsectors = fGeom->GetNumSectors();
159 const Int_t nareas = fGeom->GetNumAreas();
160
161 if (fHiGainArray->GetEntries()==0)
162 {
163 fHiGainArray->Expand(npixels);
164 for (Int_t i=0; i<npixels; i++)
165 {
166 (*fHiGainArray)[i] = new MHCalibrationTestPix("Calibrated Events",
167 "Test Calibration Pixel");
168 InitHists((*this)[i],(*fBadPixels)[i],i);
169 }
170 }
171
172 if (fLoGainArray->GetEntries()==0)
173 {
174 fLoGainArray->Expand(npixels);
175 for (Int_t i=0; i<npixels; i++)
176 {
177 (*fLoGainArray)[i] = new MHCalibrationTestPix("Calibrated Events",
178 "Test Calibration Pixel");
179 InitHists((*this)(i),(*fBadPixels)[i],i);
180 }
181 }
182
183
184 if (fAverageHiGainAreas->GetEntries()==0)
185 {
186 fAverageHiGainAreas->Expand(nareas);
187
188 for (Int_t j=0; j<nareas; j++)
189 {
190 (*fAverageHiGainAreas)[j] =
191 new MHCalibrationTestPix("MHCalibrationTestAverageArea",
192 "Average Test Calibrations Area Idx ");
193
194 GetAverageHiGainArea(j).GetHGausHist()->SetTitle("Test Calibrations Area Idx ");
195 GetAverageHiGainArea(j).SetNbins(fAverageNbins);
196 GetAverageHiGainArea(j).InitBins();
197 GetAverageHiGainArea(j).ChangeHistId(j);
198 GetAverageHiGainArea(j).SetEventFrequency(fPulserFrequency);
199
200 TH1F *h = GetAverageHiGainArea(j).GetHGausHist();
201 h->SetTitle( Form("%s%s", h->GetTitle()," Runs: "));
202 }
203 }
204
205 if (fAverageLoGainAreas->GetEntries()==0)
206 {
207 fAverageLoGainAreas->Expand(nareas);
208
209 for (Int_t j=0; j<nareas; j++)
210 {
211 (*fAverageLoGainAreas)[j] =
212 new MHCalibrationTestPix("MHCalibrationTestAverageArea",
213 "Average Test Calibrations Area Idx ");
214
215 GetAverageLoGainArea(j).GetHGausHist()->SetTitle("Test Calibrations Area Idx ");
216 GetAverageLoGainArea(j).SetNbins(fAverageNbins);
217 GetAverageLoGainArea(j).InitBins();
218 GetAverageLoGainArea(j).ChangeHistId(j);
219 GetAverageLoGainArea(j).SetEventFrequency(fPulserFrequency);
220
221 }
222 }
223
224
225 if (fAverageHiGainSectors->GetEntries()==0)
226 {
227 fAverageHiGainSectors->Expand(nsectors);
228
229 for (Int_t j=0; j<nsectors; j++)
230 {
231 (*fAverageHiGainSectors)[j] =
232 new MHCalibrationTestPix("MHCalibrationTestAverageSector",
233 "Average Test Calibrations Sector ");
234
235 GetAverageHiGainSector(j).GetHGausHist()->SetTitle("Test Calibrations Sector ");
236 GetAverageHiGainSector(j).SetNbins(fAverageNbins);
237 GetAverageHiGainSector(j).InitBins();
238 GetAverageHiGainSector(j).ChangeHistId(j);
239 GetAverageHiGainSector(j).SetEventFrequency(fPulserFrequency);
240
241 TH1F *h = GetAverageHiGainSector(j).GetHGausHist();
242 h->SetTitle( Form("%s%s", h->GetTitle()," Runs: "));
243
244 }
245 }
246
247
248 if (fAverageLoGainSectors->GetEntries()==0)
249 {
250 fAverageLoGainSectors->Expand(nsectors);
251
252 for (Int_t j=0; j<nsectors; j++)
253 {
254 (*fAverageLoGainSectors)[j] =
255 new MHCalibrationTestPix("MHCalibrationTestAverageSector",
256 "Average Test Calibrations Sector ");
257
258 GetAverageLoGainSector(j).GetHGausHist()->SetTitle("Test Calibrations Sector ");
259 GetAverageLoGainSector(j).SetNbins(fAverageNbins);
260 GetAverageLoGainSector(j).InitBins();
261 GetAverageLoGainSector(j).ChangeHistId(j);
262 GetAverageLoGainSector(j).SetEventFrequency(fPulserFrequency);
263 }
264 }
265
266
267 return kTRUE;
268}
269
270
271// -------------------------------------------------------------------------------
272//
273// Retrieves pointer to MCerPhotEvt:
274//
275// Retrieves from MGeomCam:
276// - number of pixels
277// - number of pixel areas
278// - number of sectors
279//
280// Fills HiGain or LoGain histograms (MHGausEvents::FillHistAndArray()), respectively
281// depending on MCerPhotPix::IsLoGainUsed(), with:
282// - MCerPhotPix::GetArrivalTime(pixid) - MCerPhotPix::GetArrivalTime(1);
283// (i.e. the time difference between pixel i and pixel 1 (hardware number: 2) )
284//
285Bool_t MHCalibrationTestCam::FillHists(const MParContainer *par, const Stat_t w)
286{
287
288 MCerPhotEvt *calibration = (MCerPhotEvt*)par;
289 if (!calibration)
290 {
291 gLog << err << "No argument in MHCalibrationRelTimeCam::Fill... abort." << endl;
292 return kFALSE;
293 }
294
295 const Int_t npixels = fGeom->GetNumPixels();
296 const Int_t nareas = fGeom->GetNumAreas();
297 const Int_t nsectors = fGeom->GetNumSectors();
298
299 Float_t sumareahi [nareas];
300 Float_t sumsectorhi[nsectors];
301 Int_t numareahi [nareas];
302 Int_t numsectorhi[nsectors];
303
304 memset(sumareahi, 0, nareas * sizeof(Float_t));
305 memset(sumsectorhi, 0, nsectors*sizeof(Float_t));
306 memset(numareahi, 0, nareas * sizeof(Int_t));
307 memset(numsectorhi, 0, nsectors*sizeof(Int_t));
308
309 for (Int_t i=0; i<npixels; i++)
310 {
311
312 MHGausEvents &histhi = (*this)[i];
313
314 if (histhi.IsExcluded())
315 continue;
316
317 const MCerPhotPix *pix = calibration->GetPixById(i);
318 if (!pix)
319 continue;
320
321 const Float_t signal = pix->GetNumPhotons();
322
323 const Int_t aidx = (*fGeom)[i].GetAidx();
324 const Int_t sector = (*fGeom)[i].GetSector();
325
326 histhi.FillHistAndArray(signal) ;
327 sumareahi [aidx] += signal;
328 numareahi [aidx] ++;
329 sumsectorhi[sector] += signal;
330 numsectorhi[sector] ++;
331 }
332
333 for (Int_t j=0; j<nareas; j++)
334 {
335 MHGausEvents &histhi = GetAverageHiGainArea(j);
336 histhi.FillHistAndArray(numareahi[j] == 0 ? 0. : sumareahi[j]/numareahi[j]);
337
338 }
339
340 for (Int_t j=0; j<nsectors; j++)
341 {
342 MHGausEvents &histhi = GetAverageHiGainSector(j);
343 histhi.FillHistAndArray(numsectorhi[j] == 0 ? 0. : sumsectorhi[j]/numsectorhi[j]);
344
345 }
346
347 return kTRUE;
348}
349
350// --------------------------------------------------------------------------
351//
352// Calls:
353// - MHCalibrationCam::FitHiGainArrays() with flags:
354// MBadPixelsPix::kTestNotFitted and MBadPixelsPix::kTestOscillating
355// - MHCalibrationCam::FitLoGainArrays() with flags:
356// MBadPixelsPix::kTestNotFitted and MBadPixelsPix::kTestOscillating
357//
358Bool_t MHCalibrationTestCam::FinalizeHists()
359{
360
361 for (Int_t i=0; i<fHiGainArray->GetSize(); i++)
362 {
363
364 MHGausEvents &hist = (*this)[i];
365
366 if (hist.IsExcluded())
367 continue;
368
369 if (hist.IsEmpty())
370 continue;
371
372 if (!hist.FitGaus())
373 if (!hist.RepeatFit())
374 {
375 hist.BypassFit();
376 }
377
378 hist.CreateFourierSpectrum();
379
380 }
381
382 for (Int_t j=0; j<fAverageHiGainAreas->GetSize(); j++)
383 {
384
385 MHGausEvents &hist = GetAverageHiGainArea(j);
386 if (hist.IsEmpty())
387 continue;
388
389 if (!hist.FitGaus())
390 if (!hist.RepeatFit())
391 {
392 hist.BypassFit();
393 }
394
395 hist.CreateFourierSpectrum();
396
397
398 }
399
400 for (Int_t j=0; j<fAverageHiGainSectors->GetSize(); j++)
401 {
402
403 MHGausEvents &hist = GetAverageHiGainSector(j);
404 if (hist.IsEmpty())
405 continue;
406
407 if (!hist.FitGaus())
408 if (!hist.RepeatFit())
409 {
410 hist.BypassFit();
411 }
412 hist.CreateFourierSpectrum();
413
414
415 }
416
417 return kTRUE;
418}
419
420// --------------------------------------------------------------------------
421//
422// Sets all pixels to MBadPixelsPix::kUnreliableRun, if following flags are set:
423// - MBadPixelsPix::kTestNotFitted
424// - MBadPixelsPix::kTestOscillating
425//
426void MHCalibrationTestCam::FinalizeBadPixels()
427{
428
429}
430
431// --------------------------------------------------------------------------
432//
433// The types are as follows:
434//
435// Fitted values:
436// ==============
437//
438// 0: Fitted Mean Test Calibration (MHGausEvents::GetMean())
439// 1: Error Mean Test Calibration (MHGausEvents::GetMeanErr())
440// 2: Sigma fitted Test Calibration (MHGausEvents::GetSigma())
441// 3: Error Sigma Test Calibration (MHGausEvents::GetSigmaErr())
442//
443// Useful variables derived from the fit results:
444// =============================================
445//
446// 4: Returned probability of Gauss fit (calls: MHGausEvents::GetProb())
447//
448// Localized defects:
449// ==================
450//
451// 5: Gaus fit not OK (calls: MHGausEvents::IsGausFitOK())
452// 6: Fourier spectrum not OK (calls: MHGausEvents::IsFourierSpectrumOK())
453//
454// Converted values:
455// =================
456//
457// 7: Fitted Mean Test Calibration (MHGausEvents::GetMean()) by MGeomPix::GetA()
458// 8: Fitted Mean Error Calibration (MHGausEvents::GetSigma()) by MGeomPix::GetA()
459// 9: Fitted Sigma Test Calibration (MHGausEvents::GetMean()) by MGeomPix::GetA()
460// 8: Fitted Sigma Error Calibration (MHGausEvents::GetSigma()) by MGeomPix::GetA()
461//
462Bool_t MHCalibrationTestCam::GetPixelContent(Double_t &val, Int_t idx, const MGeomCam &cam, Int_t type) const
463{
464
465 if (fHiGainArray->GetSize() <= idx)
466 return kFALSE;
467
468 const MHGausEvents &pix = (*this)[idx];
469
470 if (pix.IsExcluded())
471 return kFALSE;
472
473 switch (type)
474 {
475 case 0:
476 val = pix.GetMean();
477 break;
478 case 1:
479 val = pix.GetMeanErr();
480 break;
481 case 2:
482 val = pix.GetSigma();
483 break;
484 case 3:
485 val = pix.GetSigmaErr();
486 break;
487 case 4:
488 val = pix.GetProb();
489 break;
490 case 5:
491 if (!pix.IsGausFitOK())
492 val = 1.;
493 break;
494 case 6:
495 if (!pix.IsFourierSpectrumOK())
496 val = 1.;
497 break;
498 case 7:
499 val = pix.GetMean()/cam[idx].GetA();
500 break;
501 case 8:
502 val = pix.GetMeanErr()/cam[idx].GetA();
503 break;
504 case 9:
505 val = pix.GetSigma()/cam[idx].GetA();
506 break;
507 case 10:
508 val = pix.GetSigmaErr()/cam[idx].GetA();
509 break;
510 default:
511 return kFALSE;
512 }
513 return kTRUE;
514}
515
516// --------------------------------------------------------------------------
517//
518// Calls MHGausEvents::DrawClone() for pixel idx
519//
520void MHCalibrationTestCam::DrawPixelContent(Int_t idx) const
521{
522 (*this)[idx].DrawClone();
523}
524
525
526//------------------------------------------------------------
527//
528// For all averaged areas, the fitted sigma is multiplied with the square root of
529// the number involved pixels
530//
531void MHCalibrationTestCam::CalcAverageSigma()
532{
533
534 for (UInt_t j=0; j<fGeom->GetNumAreas(); j++)
535 {
536
537 MHGausEvents &hist = GetAverageHiGainArea(j);
538
539 const Float_t numsqr = TMath::Sqrt((Float_t)fAverageAreaNum[j]);
540 fAverageAreaSigma[j] = hist.GetSigma () * numsqr;
541 fAverageAreaSigmaVar[j] = hist.GetSigmaErr () * hist.GetSigmaErr() * numsqr;
542
543 fAverageAreaRelSigma [j] = fAverageAreaSigma[j] / hist.GetMean();
544 fAverageAreaRelSigmaVar[j] = fAverageAreaSigmaVar[j] / (fAverageAreaSigma[j]*fAverageAreaSigma[j]);
545 fAverageAreaRelSigmaVar[j] += hist.GetMeanErr()*hist.GetMeanErr()/hist.GetMean()/hist.GetMean();
546 fAverageAreaRelSigmaVar[j] *= fAverageAreaRelSigma[j];
547 }
548}
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