source: trunk/MagicSoft/Mars/mcalib/MHCalibrationTestCam.cc@ 4742

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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 "MCalibrationTestCam.h"
93
94#include "MCalibrationCam.h"
95#include "MCalibrationPix.h"
96
97#include "MCerPhotEvt.h"
98#include "MCerPhotPix.h"
99
100#include "MGeomCam.h"
101#include "MGeomPix.h"
102
103#include "MBadPixelsCam.h"
104#include "MBadPixelsPix.h"
105
106ClassImp(MHCalibrationTestCam);
107
108using namespace std;
109// --------------------------------------------------------------------------
110//
111// Default Constructor.
112//
113MHCalibrationTestCam::MHCalibrationTestCam(const char *name, const char *title)
114{
115
116 fName = name ? name : "MHCalibrationTestCam";
117 fTitle = title ? title : "Histogram class for testing the calibration";
118
119 SetAverageNbins(5000);
120
121}
122
123// --------------------------------------------------------------------------
124//
125// Gets or creates the pointers to:
126// - MCalibrationTestCam
127//
128// Searches pointer to:
129// - MCerPhotEvt
130//
131// Initializes, if empty to MGeomCam::GetNumAreas() for:
132// - MHCalibrationCam::fAverageHiGainAreas, MHCalibrationCam::fAverageLoGainAreas
133//
134// Initializes, if empty to MGeomCam::GetNumSectors() for:
135// - MHCalibrationCam::fAverageHiGainSectors, MHCalibrationCam::fAverageLoGainSectors
136//
137// Calls MHCalibrationCam::InitHists() for every entry in:
138// - MHCalibrationCam::fHiGainArray
139// - MHCalibrationCam::fAverageHiGainAreas
140// - MHCalibrationCam::fAverageHiGainSectors
141//
142// Sets Titles and Names for the Histograms
143// - MHCalibrationCam::fAverageHiGainAreas
144// - MHCalibrationCam::fAverageHiGainSectors
145//
146// Sets number of bins to MHCalibrationCam::fAverageNbins for:
147// - MHCalibrationCam::fAverageHiGainAreas
148// - MHCalibrationCam::fAverageHiGainSectors
149//
150Bool_t MHCalibrationTestCam::ReInitHists(MParList *pList)
151{
152
153 MCerPhotEvt *signal = (MCerPhotEvt*)pList->FindObject("MCerPhotEvt");
154 if (!signal)
155 {
156 *fLog << err << "MCerPhotEvt not found... abort." << endl;
157 return kFALSE;
158 }
159
160
161 const Int_t npixels = fGeom->GetNumPixels();
162 const Int_t nsectors = fGeom->GetNumSectors();
163 const Int_t nareas = fGeom->GetNumAreas();
164
165 if (fHiGainArray->GetEntries()==0)
166 {
167 fHiGainArray->Expand(npixels);
168 for (Int_t i=0; i<npixels; i++)
169 {
170 (*fHiGainArray)[i] = new MHCalibrationTestPix("Calibrated Events",
171 "Test Calibration Pixel");
172 InitHists((*this)[i],(*fBadPixels)[i],i);
173 }
174 }
175
176 if (fLoGainArray->GetEntries()==0)
177 {
178 fLoGainArray->Expand(npixels);
179 for (Int_t i=0; i<npixels; i++)
180 {
181 (*fLoGainArray)[i] = new MHCalibrationTestPix("Calibrated Events",
182 "Test Calibration Pixel");
183 InitHists((*this)(i),(*fBadPixels)[i],i);
184 }
185 }
186
187
188 if (fAverageHiGainAreas->GetEntries()==0)
189 {
190 fAverageHiGainAreas->Expand(nareas);
191
192 for (Int_t j=0; j<nareas; j++)
193 {
194 (*fAverageHiGainAreas)[j] =
195 new MHCalibrationTestPix("MHCalibrationTestAverageArea",
196 "Average Test Calibrations Area Idx ");
197
198 GetAverageHiGainArea(j).GetHGausHist()->SetTitle("Test Calibrations Area Idx ");
199 GetAverageHiGainArea(j).SetNbins(fAverageNbins);
200 GetAverageHiGainArea(j).InitBins();
201 GetAverageHiGainArea(j).ChangeHistId(j);
202 GetAverageHiGainArea(j).SetEventFrequency(fPulserFrequency);
203
204 TH1F *h = GetAverageHiGainArea(j).GetHGausHist();
205 h->SetTitle( Form("%s%s", h->GetTitle()," Runs: "));
206 }
207 }
208
209 if (fAverageLoGainAreas->GetEntries()==0)
210 {
211 fAverageLoGainAreas->Expand(nareas);
212
213 for (Int_t j=0; j<nareas; j++)
214 {
215 (*fAverageLoGainAreas)[j] =
216 new MHCalibrationTestPix("MHCalibrationTestAverageArea",
217 "Average Test Calibrations Area Idx ");
218
219 GetAverageLoGainArea(j).GetHGausHist()->SetTitle("Test Calibrations Area Idx ");
220 GetAverageLoGainArea(j).SetNbins(fAverageNbins);
221 GetAverageLoGainArea(j).InitBins();
222 GetAverageLoGainArea(j).ChangeHistId(j);
223 GetAverageLoGainArea(j).SetEventFrequency(fPulserFrequency);
224
225 }
226 }
227
228
229 if (fAverageHiGainSectors->GetEntries()==0)
230 {
231 fAverageHiGainSectors->Expand(nsectors);
232
233 for (Int_t j=0; j<nsectors; j++)
234 {
235 (*fAverageHiGainSectors)[j] =
236 new MHCalibrationTestPix("MHCalibrationTestAverageSector",
237 "Average Test Calibrations Sector ");
238
239 GetAverageHiGainSector(j).GetHGausHist()->SetTitle("Test Calibrations Sector ");
240 GetAverageHiGainSector(j).SetNbins(fAverageNbins);
241 GetAverageHiGainSector(j).InitBins();
242 GetAverageHiGainSector(j).ChangeHistId(j);
243 GetAverageHiGainSector(j).SetEventFrequency(fPulserFrequency);
244
245 TH1F *h = GetAverageHiGainSector(j).GetHGausHist();
246 h->SetTitle( Form("%s%s", h->GetTitle()," Runs: "));
247
248 }
249 }
250
251
252 if (fAverageLoGainSectors->GetEntries()==0)
253 {
254 fAverageLoGainSectors->Expand(nsectors);
255
256 for (Int_t j=0; j<nsectors; j++)
257 {
258 (*fAverageLoGainSectors)[j] =
259 new MHCalibrationTestPix("MHCalibrationTestAverageSector",
260 "Average Test Calibrations Sector ");
261
262 GetAverageLoGainSector(j).GetHGausHist()->SetTitle("Test Calibrations Sector ");
263 GetAverageLoGainSector(j).SetNbins(fAverageNbins);
264 GetAverageLoGainSector(j).InitBins();
265 GetAverageLoGainSector(j).ChangeHistId(j);
266 GetAverageLoGainSector(j).SetEventFrequency(fPulserFrequency);
267 }
268 }
269
270
271 fMeanMeanPhotPerArea.Set(nareas);
272 fRmsMeanPhotPerArea .Set(nareas);
273 fMeanSigmaPhotPerArea.Set(nareas);
274 fRmsSigmaPhotPerArea.Set(nareas);
275
276 return kTRUE;
277}
278
279
280// -------------------------------------------------------------------------------
281//
282// Retrieves pointer to MCerPhotEvt:
283//
284// Retrieves from MGeomCam:
285// - number of pixels
286// - number of pixel areas
287// - number of sectors
288//
289// Fills HiGain or LoGain histograms (MHGausEvents::FillHistAndArray()), respectively
290// depending on MCerPhotPix::IsLoGainUsed(), with:
291// - MCerPhotPix::GetArrivalTime(pixid) - MCerPhotPix::GetArrivalTime(1);
292// (i.e. the time difference between pixel i and pixel 1 (hardware number: 2) )
293//
294Bool_t MHCalibrationTestCam::FillHists(const MParContainer *par, const Stat_t w)
295{
296
297 MCerPhotEvt *calibration = (MCerPhotEvt*)par;
298 if (!calibration)
299 {
300 gLog << err << "No argument in MHCalibrationRelTimeCam::Fill... abort." << endl;
301 return kFALSE;
302 }
303
304 const Int_t npixels = fGeom->GetNumPixels();
305 const Int_t nareas = fGeom->GetNumAreas();
306 const Int_t nsectors = fGeom->GetNumSectors();
307
308 Float_t sumareahi [nareas];
309 Float_t sumsectorhi[nsectors];
310 Int_t numareahi [nareas];
311 Int_t numsectorhi[nsectors];
312
313 memset(sumareahi, 0, nareas * sizeof(Float_t));
314 memset(sumsectorhi, 0, nsectors*sizeof(Float_t));
315 memset(numareahi, 0, nareas * sizeof(Int_t));
316 memset(numsectorhi, 0, nsectors*sizeof(Int_t));
317
318 for (Int_t i=0; i<npixels; i++)
319 {
320
321 MHGausEvents &histhi = (*this)[i];
322
323 const MCerPhotPix *pix = calibration->GetPixById(i);
324 if (!pix)
325 continue;
326
327
328 const Float_t signal = pix->GetNumPhotons();
329
330 if (signal < 0.0001)
331 continue;
332
333 const Int_t aidx = (*fGeom)[i].GetAidx();
334 const Int_t sector = (*fGeom)[i].GetSector();
335
336 histhi.FillHistAndArray(signal) ;
337
338 sumareahi [aidx] += signal;
339 numareahi [aidx] ++;
340 sumsectorhi[sector] += signal;
341 numsectorhi[sector] ++;
342 }
343
344 for (Int_t j=0; j<nareas; j++)
345 {
346 MHGausEvents &histhi = GetAverageHiGainArea(j);
347 histhi.FillHistAndArray(numareahi[j] == 0 ? 0. : sumareahi[j]/numareahi[j]);
348 }
349
350 for (Int_t j=0; j<nsectors; j++)
351 {
352 MHGausEvents &histhi = GetAverageHiGainSector(j);
353 histhi.FillHistAndArray(numsectorhi[j] == 0 ? 0. : sumsectorhi[j]/numsectorhi[j]);
354
355 }
356
357 return kTRUE;
358}
359
360// --------------------------------------------------------------------------
361//
362// Calls:
363// - MHCalibrationCam::FitHiGainArrays() with flags:
364// MBadPixelsPix::kTestNotFitted and MBadPixelsPix::kTestOscillating
365// - MHCalibrationCam::FitLoGainArrays() with flags:
366// MBadPixelsPix::kTestNotFitted and MBadPixelsPix::kTestOscillating
367//
368Bool_t MHCalibrationTestCam::FinalizeHists()
369{
370
371 *fLog << endl;
372
373 TArrayI numaidx;
374 numaidx.Set(fGeom->GetNumAreas());
375
376 for (Int_t i=0; i<fHiGainArray->GetSize(); i++)
377 {
378
379 MHGausEvents &hist = (*this)[i];
380
381 if (hist.IsEmpty())
382 continue;
383
384 if (!hist.FitGaus())
385 if (!hist.RepeatFit())
386 hist.BypassFit();
387
388 hist.CreateFourierSpectrum();
389
390 const Float_t area = (*fGeom)[i].GetA();
391 const Int_t aidx = (*fGeom)[i].GetAidx();
392
393 fMeanMeanPhotPerArea[aidx] += hist.GetMean() / area;
394 fRmsMeanPhotPerArea [aidx] += hist.GetMean() / area * hist.GetMean() / area;
395 fMeanSigmaPhotPerArea[aidx] += hist.GetSigma()/ area;
396 fRmsSigmaPhotPerArea [aidx] += hist.GetSigma()/ area * hist.GetSigma() / area;
397 numaidx[aidx]++;
398 }
399
400
401 for (Int_t j=0; j<fAverageHiGainAreas->GetSize(); j++)
402 {
403
404 MHGausEvents &hist = GetAverageHiGainArea(j);
405 if (hist.IsEmpty())
406 continue;
407
408 if (!hist.FitGaus())
409 if (!hist.RepeatFit())
410 hist.BypassFit();
411
412 hist.CreateFourierSpectrum();
413
414 fRmsMeanPhotPerArea [j] -= fMeanMeanPhotPerArea [j]*fMeanMeanPhotPerArea [j]/numaidx[j];
415 fRmsSigmaPhotPerArea[j] -= fMeanSigmaPhotPerArea[j]*fMeanSigmaPhotPerArea[j]/numaidx[j];
416
417 fMeanMeanPhotPerArea [j] /= numaidx[j];
418 fMeanSigmaPhotPerArea[j] /= numaidx[j];
419 fRmsMeanPhotPerArea [j] /= numaidx[j]-1.;
420 fRmsSigmaPhotPerArea [j] /= numaidx[j]-1.;
421
422 if (fRmsMeanPhotPerArea [j] > 0.)
423 fRmsMeanPhotPerArea [j] = TMath::Sqrt(fRmsMeanPhotPerArea [j]);
424 if (fRmsSigmaPhotPerArea [j] > 0.)
425 fRmsSigmaPhotPerArea [j] = TMath::Sqrt(fRmsSigmaPhotPerArea [j]);
426 }
427
428 for (Int_t j=0; j<fAverageHiGainSectors->GetSize(); j++)
429 {
430
431 MHGausEvents &hist = GetAverageHiGainSector(j);
432 if (hist.IsEmpty())
433 continue;
434
435 if (!hist.FitGaus())
436 if (!hist.RepeatFit())
437 hist.BypassFit();
438
439 hist.CreateFourierSpectrum();
440 }
441
442 return kTRUE;
443}
444
445
446// --------------------------------------------------------------------------
447//
448// The types are as follows:
449//
450// Fitted values:
451// ==============
452//
453// 0: Fitted Mean Test Calibration (MHGausEvents::GetMean())
454// 1: Error Mean Test Calibration (MHGausEvents::GetMeanErr())
455// 2: Sigma fitted Test Calibration (MHGausEvents::GetSigma())
456// 3: Error Sigma Test Calibration (MHGausEvents::GetSigmaErr())
457//
458// Useful variables derived from the fit results:
459// =============================================
460//
461// 4: Returned probability of Gauss fit (calls: MHGausEvents::GetProb())
462//
463// Localized defects:
464// ==================
465//
466// 5: Gaus fit not OK (calls: MHGausEvents::IsGausFitOK())
467// 6: Fourier spectrum not OK (calls: MHGausEvents::IsFourierSpectrumOK())
468//
469// Converted values:
470// =================
471//
472// 7: Fitted Mean Test Calibration (MHGausEvents::GetMean()) by MGeomPix::GetA()
473// 8: Fitted Mean Error Calibration (MHGausEvents::GetMeanErr()) by MGeomPix::GetA()
474// 9: Fitted Sigma Test Calibration (MHGausEvents::GetSigma()) by MGeomPix::GetA()
475// 10: Fitted Sigma Error Calibration (MHGausEvents::GetSigmaErr()) by MGeomPix::GetA()
476//
477Bool_t MHCalibrationTestCam::GetPixelContent(Double_t &val, Int_t idx, const MGeomCam &cam, Int_t type) const
478{
479
480 if (fHiGainArray->GetSize() <= idx)
481 return kFALSE;
482
483 const MHGausEvents &pix = (*this)[idx];
484
485 if (pix.IsEmpty())
486 return kFALSE;
487
488 switch (type)
489 {
490 case 0:
491 val = pix.GetMean();
492 break;
493 case 1:
494 val = pix.GetMeanErr();
495 break;
496 case 2:
497 val = pix.GetSigma();
498 break;
499 case 3:
500 val = pix.GetSigmaErr();
501 break;
502 case 4:
503 val = pix.GetProb();
504 break;
505 case 5:
506 if (!pix.IsGausFitOK())
507 val = 1.;
508 break;
509 case 6:
510 if (!pix.IsFourierSpectrumOK())
511 val = 1.;
512 break;
513 case 7:
514 val = pix.GetMean()/cam[idx].GetA();
515 break;
516 case 8:
517 val = pix.GetMeanErr()/cam[idx].GetA();
518 break;
519 case 9:
520 val = pix.GetSigma()/cam[idx].GetA();
521 break;
522 case 10:
523 val = pix.GetSigmaErr()/cam[idx].GetA();
524 break;
525 default:
526 return kFALSE;
527 }
528 return kTRUE;
529}
530
531// --------------------------------------------------------------------------
532//
533// Calls MHGausEvents::DrawClone() for pixel idx
534//
535void MHCalibrationTestCam::DrawPixelContent(Int_t idx) const
536{
537 (*this)[idx].DrawClone();
538}
539
540
541//------------------------------------------------------------
542//
543// For all averaged areas, the fitted sigma is multiplied with the square root of
544// the number involved pixels
545//
546void MHCalibrationTestCam::CalcAverageSigma()
547{
548
549 for (UInt_t j=0; j<fGeom->GetNumAreas(); j++)
550 {
551
552 MHGausEvents &hist = GetAverageHiGainArea(j);
553
554 const Float_t numsqr = TMath::Sqrt((Float_t)fAverageAreaNum[j]);
555 fAverageAreaSigma[j] = hist.GetSigma () * numsqr;
556 fAverageAreaSigmaVar[j] = hist.GetSigmaErr () * hist.GetSigmaErr() * numsqr;
557
558 fAverageAreaRelSigma [j] = fAverageAreaSigma[j] / hist.GetMean();
559 fAverageAreaRelSigmaVar[j] = fAverageAreaSigmaVar[j] / (fAverageAreaSigma[j]*fAverageAreaSigma[j]);
560 fAverageAreaRelSigmaVar[j] += hist.GetMeanErr()*hist.GetMeanErr()/hist.GetMean()/hist.GetMean();
561 fAverageAreaRelSigmaVar[j] *= fAverageAreaRelSigma[j];
562 }
563}
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