[u/mrichter/AliRoot.git] / PWG1 / TRD / AliTRDpidRefMaker.cxx

#include "TPDGCode.h"
#include "TFile.h"
#include "TTree.h"
#include "TEventList.h"
#include "TObjArray.h"
#include "TH2.h"

#include "AliLog.h"
#include "AliESDtrack.h"
#include "AliTrackReference.h"

#include "AliTRDReconstructor.h"
#include "AliTRDtrackV1.h"
#include "AliTRDseedV1.h"
#include "AliTRDpidRefMaker.h"
#include "info/AliTRDv0Info.h"


// Defines and implements basic functionality for building reference data for TRD PID. 
// 
// Here is the list of functionality provided by this class
// 1.
// 2.
// 
// Authors:
//   Alex Bercuci <A.Bercuci@gsi.de>
//   Alex Wilk    <wilka@uni-muenster.de>
//   Markus Fasel <mfasel@gsi.de>
//   Markus Heide <mheide@uni-muenster.de>
// 

ClassImp(AliTRDpidRefMaker)
ClassImp(AliTRDpidRefMaker::AliTRDpidRefData)
ClassImp(AliTRDpidRefMaker::AliTRDpidRefDataArray)

//________________________________________________________________________
AliTRDpidRefMaker::AliTRDpidRefDataArray::AliTRDpidRefDataArray() :
  fNtracklets(0)
  ,fData(NULL)
{
  // Constructor of data array
  fData = new AliTRDpidRefData[AliTRDgeometry::kNlayer];
}

//________________________________________________________________________
AliTRDpidRefMaker::AliTRDpidRefDataArray::~AliTRDpidRefDataArray()
{
  // Destructor
  delete [] fData;
}

//________________________________________________________________________
void AliTRDpidRefMaker::AliTRDpidRefDataArray::PushBack(Int_t ly, Int_t p, Float_t *dedx)
{
// Add PID data to the end of the array 
  fData[fNtracklets].fPLbin= (ly<<4) | (p&0xf);
  memcpy(fData[fNtracklets].fdEdx, dedx, 8*sizeof(Float_t));
  fNtracklets++;
}

//________________________________________________________________________
void AliTRDpidRefMaker::AliTRDpidRefDataArray::Reset()
{
// Reset content

  if(!fNtracklets) return;
  while(fNtracklets--){
    fData[fNtracklets].fPLbin = 0xff;
    memset(fData[fNtracklets].fdEdx, 0, 8*sizeof(Float_t));
  }
  fNtracklets=0;
}

//________________________________________________________________________
AliTRDpidRefMaker::AliTRDpidRefMaker(const char *name, const char *title) 
  :AliTRDrecoTask(name, title)
  ,fReconstructor(NULL)
  ,fV0s(NULL)
  ,fData(NULL)
  ,fInfo(NULL)
  ,fPIDdataArray(NULL)
  ,fRefPID(kMC)
  ,fRefP(kMC)
  ,fPIDbin(0xff)
  ,fFreq(1.)
  ,fP(-1.)
  ,fPthreshold(0.5)
{
  //
  // Default constructor
  //

  fReconstructor = new AliTRDReconstructor();
  fReconstructor->SetRecoParam(AliTRDrecoParam::GetLowFluxParam());
  memset(fdEdx, 0, 10*sizeof(Float_t));
  memset(fPID, 0, AliPID::kSPECIES*sizeof(Float_t));

  DefineInput(1, TObjArray::Class());
  DefineInput(2, TObjArray::Class());
  DefineOutput(1, TTree::Class());
}


//________________________________________________________________________
AliTRDpidRefMaker::~AliTRDpidRefMaker() 
{
  if(fPIDdataArray) delete fPIDdataArray;
  if(fReconstructor) delete fReconstructor;
}

//________________________________________________________________________
Bool_t AliTRDpidRefMaker::CheckQuality(AliTRDseedV1* /*trklt*/)
{
// Place holder for checking tracklet quality for PID.
  return kTRUE;  
}


//________________________________________________________________________
Float_t* AliTRDpidRefMaker::CookdEdx(AliTRDseedV1 *trklt)
{
  trklt->CookdEdx(AliTRDpidUtil::kNNslices);
  memcpy(fdEdx, trklt->GetdEdx(), AliTRDpidUtil::kNNslices*sizeof(Float_t));
  return fdEdx;
}


//________________________________________________________________________
void AliTRDpidRefMaker::ConnectInputData(Option_t *opt)
{
  AliTRDrecoTask::ConnectInputData(opt);
  fV0s  = dynamic_cast<TObjArray*>(GetInputData(1));
  fInfo = dynamic_cast<TObjArray*>(GetInputData(2));
} 

//________________________________________________________________________
void AliTRDpidRefMaker::CreateOutputObjects()
{
  // Create histograms
  // Called once

  OpenFile(0, "RECREATE");
  fContainer = new TObjArray();
  fContainer->SetName(Form("Moni%s", GetName()));

  TH2 *h2 = new TH2I("hPDG","Particle abundance", AliPID::kSPECIES, -0.5, 4.5, AliTRDCalPID::kNMom, -0.5, AliTRDCalPID::kNMom-0.5);
  TAxis *ax = h2->GetXaxis();
  ax->SetNdivisions(505);
  ax->SetTitle("Particle species");
  for(Int_t is=AliPID::kSPECIES; is--;) ax->SetBinLabel(is+1, AliPID::ParticleShortName(is));
  h2->GetYaxis()->SetTitle("P bins");
  h2->GetYaxis()->SetNdivisions(511);

  fContainer->AddAt(h2, 0);

  fData = new TTree(GetName(), Form("Reference data for %s", GetName()));
  fData->Branch("s", &fPIDbin, "s/b");
  fData->Branch("data", &fPIDdataArray);
}

//________________________________________________________________________
void AliTRDpidRefMaker::Exec(Option_t *) 
{
  // Main loop
  // Called for each event

  AliTRDtrackInfo     *track = NULL;
  AliTRDtrackV1    *trackTRD = NULL;
  AliTrackReference     *ref = NULL;
  const AliTRDtrackInfo::AliESDinfo *infoESD = NULL;
  for(Int_t itrk=0; itrk<fTracks->GetEntriesFast(); itrk++){
    track = (AliTRDtrackInfo*)fTracks->UncheckedAt(itrk);
    if(!track->HasESDtrack()) continue;
    trackTRD = track->GetTrack();
    infoESD  = track->GetESDinfo();
    Double32_t *infoPID = infoESD->GetSliceIter();
    Int_t n = infoESD->GetNSlices() - AliTRDgeometry::kNlayer;
    Double32_t *p = &infoPID[n];


    ULong_t status = track->GetStatus();
    if(!(status&AliESDtrack::kTPCout)) continue;

    // fill the pid information
    SetRefPID(fRefPID, track, fPID);

    // prepare PID data array
    if(!fPIDdataArray){ 
      fPIDdataArray = new AliTRDpidRefDataArray();
    } else fPIDdataArray->Reset();

    // fill PID information
    for(Int_t ily = 0; ily < AliTRDgeometry::kNlayer; ily++){

      // fill P & dE/dx information
      if(HasFriends()){ // from TRD track
        if(!trackTRD) continue;
        AliTRDseedV1 *trackletTRD(NULL);
        trackTRD -> SetReconstructor(fReconstructor);
        if(!(trackletTRD = trackTRD -> GetTracklet(ily))) continue;
        if(!CheckQuality(trackletTRD)) continue;
        if(!CookdEdx(trackletTRD)) continue;

        // fill momentum information
        fP = 0.;
        switch(fRefP){
        case kMC:
          if(!(ref = track->GetTrackRef(trackletTRD))) continue;
          fP = ref->P();
          break;
        case kRec:
          fP = trackletTRD->GetMomentum();
          break;
        default: continue;
        }
      } else { // from ESD track
        // fill momentum information
        switch(fRefP){
        case kMC:
          if(!(ref = track->GetTrackRef(ily))) continue;
          fP = ref->P();
          break;
        case kRec:
          fP = p[ily];
          break;
        default: continue;
        } 
        Double32_t *it = &infoPID[ily*AliTRDCalPID::kNSlicesNN];
        for(Int_t is=AliTRDCalPID::kNSlicesNN; is--; it++) fdEdx[is] = (*it);
      }

      // momentum threshold
      if(fP < fPthreshold) continue;

      // store information
      fPIDdataArray->PushBack(ily, AliTRDpidUtil::GetMomentumBin(fP), fdEdx);
    }

    Fill();
  }

  PostData(0, fContainer);
  PostData(1, fData);
}


//________________________________________________________________________
void AliTRDpidRefMaker::Fill() 
{
// Fill data tree

  if(!fPIDdataArray->fNtracklets) return;
  fPIDbin = TMath::LocMax(AliPID::kSPECIES, fPID); // get particle type
// Fill data tree
  fData->Fill();

  
  // fill monitor
  for(Int_t ily=fPIDdataArray->fNtracklets; ily--;){
    Int_t pBin = fPIDdataArray->fData[ily].fPLbin & 0xf;
    ((TH2*)fContainer->At(0))->Fill(fPIDbin, pBin);
  }
}

//________________________________________________________________________
void AliTRDpidRefMaker::LinkPIDdata() 
{
// Link data tree to data members
  fData->SetBranchAddress("s", &fPIDbin);
  fData->SetBranchAddress("data", &fPIDdataArray);
}

//________________________________________________________________________
void AliTRDpidRefMaker::SetRefPID(ETRDpidRefMakerSource select, void *source, Float_t *pid) 
{
// Fill the reference PID values "pid" from "source" object
// according to the option "select". Possible options are
// - kV0  - v0 based PID
// - kMC  - MC truth [default]
// - kRec - outside detectors


  memset(fPID, 0, AliPID::kSPECIES*sizeof(Float_t));
  switch(select){ 
  case kV0:
    {
      AliTRDtrackInfo *track = static_cast<AliTRDtrackInfo*>(source);
      if(!track){
        AliError("No trackInfo found");
        return;
      }

      //Get V0 PID decisions from the AliTRDv0Info for all particle species (implemented so far : electrons from conversions, pions from K0s and protons from Lambdas) :
      AliTRDv0Info v0;
      for(Int_t is=AliPID::kSPECIES; is--;) fPID[is] = v0.GetV0PID(is, track);
    }
    break;
  case kMC:
    if(!HasMCdata()){
      AliError("Could not retrive reference PID from MC");
      return;
    }
    {
      AliTRDtrackInfo *track = static_cast<AliTRDtrackInfo*>(source);
      switch(track->GetPDG()){
      case kElectron:
      case kPositron:
        fPID[AliPID::kElectron] = 1.;
        break;
      case kMuonPlus:
      case kMuonMinus:
        fPID[AliPID::kMuon] = 1.;
        break;
      case kPiPlus:
      case kPiMinus:
        fPID[AliPID::kPion] = 1.;
        break;
      case kKPlus:
      case kKMinus:
        fPID[AliPID::kKaon] = 1.;
        break;
      case kProton:
      case kProtonBar:
        fPID[AliPID::kProton] = 1.;
        break;
      }
    }
    break;
  case kRec:
    { 
      AliTRDtrackInfo *track = static_cast<AliTRDtrackInfo*>(source);
      AliTRDtrackV1 *trackTRD = track->GetTrack();
      trackTRD -> SetReconstructor(fReconstructor);
      //fReconstructor -> SetOption("nn");
      trackTRD -> CookPID();
      for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){
        pid[iPart] = trackTRD -> GetPID(iPart);
        AliDebug(4, Form("PDG is (in V0info) %d %f", iPart, pid[iPart]));
      }
    }
    break;
  default:
    AliWarning("PID reference source not implemented");
    return;
  }
  AliDebug(4, Form("Ref PID [%] : %s[%5.2f] %s[%5.2f] %s[%5.2f] %s[%5.2f] %s[%5.2f]"
    ,AliPID::ParticleShortName(0), 1.e2*fPID[0]
    ,AliPID::ParticleShortName(1), 1.e2*fPID[1]
    ,AliPID::ParticleShortName(2), 1.e2*fPID[2]
    ,AliPID::ParticleShortName(3), 1.e2*fPID[3]
    ,AliPID::ParticleShortName(4), 1.e2*fPID[4]
  ));
}

//________________________________________________________________________
void AliTRDpidRefMaker::SetAbundance(Float_t train) 
{
// Split data sample between trainning and testing

  if(train<0. || train >1.){
    AliWarning("The input data should be in the interval [0, 1]");
    return;
  }

  fFreq = train; 
}
Commit	Line	Data
1ee39b3a	1	#include "TPDGCode.h"
	2	#include "TFile.h"
	3	#include "TTree.h"
	4	#include "TEventList.h"
	5	#include "TObjArray.h"
	6	#include "TH2.h"
	7
	8	#include "AliLog.h"
	9	#include "AliESDtrack.h"
	10	#include "AliTrackReference.h"
	11
	12	#include "AliTRDReconstructor.h"
	13	#include "AliTRDtrackV1.h"
	14	#include "AliTRDseedV1.h"
	15	#include "AliTRDpidRefMaker.h"
	16	#include "info/AliTRDv0Info.h"
	17
	18
	19	// Defines and implements basic functionality for building reference data for TRD PID.
	20	//
	21	// Here is the list of functionality provided by this class
	22	// 1.
	23	// 2.
	24	//
	25	// Authors:
	26	// Alex Bercuci <A.Bercuci@gsi.de>
	27	// Alex Wilk <wilka@uni-muenster.de>
	28	// Markus Fasel <mfasel@gsi.de>
	29	// Markus Heide <mheide@uni-muenster.de>
	30	//
	31
	32	ClassImp(AliTRDpidRefMaker)
	33	ClassImp(AliTRDpidRefMaker::AliTRDpidRefData)
	34	ClassImp(AliTRDpidRefMaker::AliTRDpidRefDataArray)
	35
	36	//________________________________________________________________________
	37	AliTRDpidRefMaker::AliTRDpidRefDataArray::AliTRDpidRefDataArray() :
	38	fNtracklets(0)
b91fdd71	39	,fData(NULL)
1ee39b3a	40	{
	41	// Constructor of data array
	42	fData = new AliTRDpidRefData[AliTRDgeometry::kNlayer];
	43	}
	44
	45	//________________________________________________________________________
	46	AliTRDpidRefMaker::AliTRDpidRefDataArray::~AliTRDpidRefDataArray()
	47	{
	48	// Destructor
	49	delete [] fData;
	50	}
	51
	52	//________________________________________________________________________
	53	void AliTRDpidRefMaker::AliTRDpidRefDataArray::PushBack(Int_t ly, Int_t p, Float_t *dedx)
	54	{
	55	// Add PID data to the end of the array
	56	fData[fNtracklets].fPLbin= (ly<<4) \| (p&0xf);
	57	memcpy(fData[fNtracklets].fdEdx, dedx, 8*sizeof(Float_t));
	58	fNtracklets++;
	59	}
	60
	61	//________________________________________________________________________
	62	void AliTRDpidRefMaker::AliTRDpidRefDataArray::Reset()
	63	{
	64	// Reset content
	65
	66	if(!fNtracklets) return;
	67	while(fNtracklets--){
	68	fData[fNtracklets].fPLbin = 0xff;
	69	memset(fData[fNtracklets].fdEdx, 0, 8*sizeof(Float_t));
	70	}
	71	fNtracklets=0;
	72	}
	73
	74	//________________________________________________________________________
	75	AliTRDpidRefMaker::AliTRDpidRefMaker(const char name, const char title)
	76	:AliTRDrecoTask(name, title)
b91fdd71	77	,fReconstructor(NULL)
	78	,fV0s(NULL)
	79	,fData(NULL)
	80	,fInfo(NULL)
	81	,fPIDdataArray(NULL)
1ee39b3a	82	,fRefPID(kMC)
	83	,fRefP(kMC)
	84	,fPIDbin(0xff)
	85	,fFreq(1.)
	86	,fP(-1.)
	87	,fPthreshold(0.5)
	88	{
	89	//
	90	// Default constructor
	91	//
	92
	93	fReconstructor = new AliTRDReconstructor();
	94	fReconstructor->SetRecoParam(AliTRDrecoParam::GetLowFluxParam());
	95	memset(fdEdx, 0, 10*sizeof(Float_t));
	96	memset(fPID, 0, AliPID::kSPECIES*sizeof(Float_t));
	97
	98	DefineInput(1, TObjArray::Class());
b91fdd71	99	DefineInput(2, TObjArray::Class());
1ee39b3a	100	DefineOutput(1, TTree::Class());
	101	}
	102
	103
	104	//________________________________________________________________________
	105	AliTRDpidRefMaker::~AliTRDpidRefMaker()
	106	{
	107	if(fPIDdataArray) delete fPIDdataArray;
	108	if(fReconstructor) delete fReconstructor;
	109	}
	110
	111	//________________________________________________________________________
	112	Bool_t AliTRDpidRefMaker::CheckQuality(AliTRDseedV1* /trklt/)
	113	{
	114	// Place holder for checking tracklet quality for PID.
	115	return kTRUE;
	116	}
	117
	118
	119	//________________________________________________________________________
	120	Float_t* AliTRDpidRefMaker::CookdEdx(AliTRDseedV1 *trklt)
	121	{
	122	trklt->CookdEdx(AliTRDpidUtil::kNNslices);
	123	memcpy(fdEdx, trklt->GetdEdx(), AliTRDpidUtil::kNNslices*sizeof(Float_t));
	124	return fdEdx;
	125	}
	126
	127
	128	//________________________________________________________________________
	129	void AliTRDpidRefMaker::ConnectInputData(Option_t *opt)
	130	{
	131	AliTRDrecoTask::ConnectInputData(opt);
b91fdd71	132	fV0s = dynamic_cast<TObjArray*>(GetInputData(1));
	133	fInfo = dynamic_cast<TObjArray*>(GetInputData(2));
	134	}
1ee39b3a	135
	136	//________________________________________________________________________
	137	void AliTRDpidRefMaker::CreateOutputObjects()
	138	{
	139	// Create histograms
	140	// Called once
	141
	142	OpenFile(0, "RECREATE");
	143	fContainer = new TObjArray();
	144	fContainer->SetName(Form("Moni%s", GetName()));
	145
	146	TH2 *h2 = new TH2I("hPDG","Particle abundance", AliPID::kSPECIES, -0.5, 4.5, AliTRDCalPID::kNMom, -0.5, AliTRDCalPID::kNMom-0.5);
	147	TAxis *ax = h2->GetXaxis();
	148	ax->SetNdivisions(505);
	149	ax->SetTitle("Particle species");
	150	for(Int_t is=AliPID::kSPECIES; is--;) ax->SetBinLabel(is+1, AliPID::ParticleShortName(is));
	151	h2->GetYaxis()->SetTitle("P bins");
	152	h2->GetYaxis()->SetNdivisions(511);
	153
	154	fContainer->AddAt(h2, 0);
	155
	156	fData = new TTree(GetName(), Form("Reference data for %s", GetName()));
	157	fData->Branch("s", &fPIDbin, "s/b");
	158	fData->Branch("data", &fPIDdataArray);
	159	}
	160
	161	//________________________________________________________________________
	162	void AliTRDpidRefMaker::Exec(Option_t *)
	163	{
	164	// Main loop
	165	// Called for each event
	166
b91fdd71	167	AliTRDtrackInfo *track = NULL;
	168	AliTRDtrackV1 *trackTRD = NULL;
	169	AliTrackReference *ref = NULL;
	170	const AliTRDtrackInfo::AliESDinfo *infoESD = NULL;
1ee39b3a	171	for(Int_t itrk=0; itrk<fTracks->GetEntriesFast(); itrk++){
	172	track = (AliTRDtrackInfo*)fTracks->UncheckedAt(itrk);
	173	if(!track->HasESDtrack()) continue;
	174	trackTRD = track->GetTrack();
	175	infoESD = track->GetESDinfo();
	176	Double32_t *infoPID = infoESD->GetSliceIter();
	177	Int_t n = infoESD->GetNSlices() - AliTRDgeometry::kNlayer;
	178	Double32_t *p = &infoPID[n];
	179
	180
	181	ULong_t status = track->GetStatus();
	182	if(!(status&AliESDtrack::kTPCout)) continue;
	183
	184	// fill the pid information
	185	SetRefPID(fRefPID, track, fPID);
	186
	187	// prepare PID data array
	188	if(!fPIDdataArray){
	189	fPIDdataArray = new AliTRDpidRefDataArray();
	190	} else fPIDdataArray->Reset();
	191
	192	// fill PID information
	193	for(Int_t ily = 0; ily < AliTRDgeometry::kNlayer; ily++){
	194
	195	// fill P & dE/dx information
	196	if(HasFriends()){ // from TRD track
	197	if(!trackTRD) continue;
b91fdd71	198	AliTRDseedV1 *trackletTRD(NULL);
1ee39b3a	199	trackTRD -> SetReconstructor(fReconstructor);
	200	if(!(trackletTRD = trackTRD -> GetTracklet(ily))) continue;
	201	if(!CheckQuality(trackletTRD)) continue;
	202	if(!CookdEdx(trackletTRD)) continue;
	203
	204	// fill momentum information
	205	fP = 0.;
	206	switch(fRefP){
	207	case kMC:
	208	if(!(ref = track->GetTrackRef(trackletTRD))) continue;
	209	fP = ref->P();
	210	break;
	211	case kRec:
	212	fP = trackletTRD->GetMomentum();
	213	break;
	214	default: continue;
	215	}
	216	} else { // from ESD track
	217	// fill momentum information
	218	switch(fRefP){
	219	case kMC:
	220	if(!(ref = track->GetTrackRef(ily))) continue;
	221	fP = ref->P();
	222	break;
	223	case kRec:
	224	fP = p[ily];
	225	break;
	226	default: continue;
	227	}
	228	Double32_t it = &infoPID[ilyAliTRDCalPID::kNSlicesNN];
	229	for(Int_t is=AliTRDCalPID::kNSlicesNN; is--; it++) fdEdx[is] = (*it);
	230	}
	231
	232	// momentum threshold
	233	if(fP < fPthreshold) continue;
	234
	235	// store information
	236	fPIDdataArray->PushBack(ily, AliTRDpidUtil::GetMomentumBin(fP), fdEdx);
	237	}
	238
	239	Fill();
	240	}
	241
	242	PostData(0, fContainer);
	243	PostData(1, fData);
	244	}
	245
	246
	247	//________________________________________________________________________
	248	void AliTRDpidRefMaker::Fill()
	249	{
	250	// Fill data tree
	251
	252	if(!fPIDdataArray->fNtracklets) return;
	253	fPIDbin = TMath::LocMax(AliPID::kSPECIES, fPID); // get particle type
	254	// Fill data tree
	255	fData->Fill();
	256
	257
	258	// fill monitor
	259	for(Int_t ily=fPIDdataArray->fNtracklets; ily--;){
	260	Int_t pBin = fPIDdataArray->fData[ily].fPLbin & 0xf;
	261	((TH2*)fContainer->At(0))->Fill(fPIDbin, pBin);
	262	}
263	}
264
265	//________________________________________________________________________
266	void AliTRDpidRefMaker::LinkPIDdata()
267	{
268	// Link data tree to data members
269	fData->SetBranchAddress("s", &fPIDbin);
270	fData->SetBranchAddress("data", &fPIDdataArray);
271	}
272
273	//________________________________________________________________________
274	void AliTRDpidRefMaker::SetRefPID(ETRDpidRefMakerSource select, void source, Float_t pid)
275	{
276	// Fill the reference PID values "pid" from "source" object
277	// according to the option "select". Possible options are
278	// - kV0 - v0 based PID
279	// - kMC - MC truth [default]
280	// - kRec - outside detectors
281
282
283	memset(fPID, 0, AliPID::kSPECIES*sizeof(Float_t));
284	switch(select){
285	case kV0:
286	{
287	AliTRDtrackInfo track = static_cast<AliTRDtrackInfo>(source);
288	if(!track){
289	AliError("No trackInfo found");
290	return;
291	}
292
293	//Get V0 PID decisions from the AliTRDv0Info for all particle species (implemented so far : electrons from conversions, pions from K0s and protons from Lambdas) :
294	AliTRDv0Info v0;
295	for(Int_t is=AliPID::kSPECIES; is--;) fPID[is] = v0.GetV0PID(is, track);
296	}
297	break;
298	case kMC:
299	if(!HasMCdata()){
300	AliError("Could not retrive reference PID from MC");
301	return;
302	}
303	{
304	AliTRDtrackInfo track = static_cast<AliTRDtrackInfo>(source);
305	switch(track->GetPDG()){
306	case kElectron:
307	case kPositron:
308	fPID[AliPID::kElectron] = 1.;
309	break;
310	case kMuonPlus:
311	case kMuonMinus:
312	fPID[AliPID::kMuon] = 1.;
313	break;
314	case kPiPlus:
315	case kPiMinus:
316	fPID[AliPID::kPion] = 1.;
317	break;
318	case kKPlus:
319	case kKMinus:
320	fPID[AliPID::kKaon] = 1.;
321	break;
322	case kProton:
323	case kProtonBar:
324	fPID[AliPID::kProton] = 1.;
325	break;
326	}
327	}
328	break;
329	case kRec:
330	{
331	AliTRDtrackInfo track = static_cast<AliTRDtrackInfo>(source);
332	AliTRDtrackV1 *trackTRD = track->GetTrack();
333	trackTRD -> SetReconstructor(fReconstructor);
334	//fReconstructor -> SetOption("nn");
335	trackTRD -> CookPID();
336	for(Int_t iPart = 0; iPart < AliPID::kSPECIES; iPart++){
337	pid[iPart] = trackTRD -> GetPID(iPart);
338	AliDebug(4, Form("PDG is (in V0info) %d %f", iPart, pid[iPart]));
339	}
340	}
341	break;
342	default:
343	AliWarning("PID reference source not implemented");
344	return;
345	}
346	AliDebug(4, Form("Ref PID [%] : %s[%5.2f] %s[%5.2f] %s[%5.2f] %s[%5.2f] %s[%5.2f]"
347	,AliPID::ParticleShortName(0), 1.e2*fPID[0]
348	,AliPID::ParticleShortName(1), 1.e2*fPID[1]
349	,AliPID::ParticleShortName(2), 1.e2*fPID[2]
350	,AliPID::ParticleShortName(3), 1.e2*fPID[3]
351	,AliPID::ParticleShortName(4), 1.e2*fPID[4]
352	));
353	}
354
355	//________________________________________________________________________
356	void AliTRDpidRefMaker::SetAbundance(Float_t train)
357	{
358	// Split data sample between trainning and testing
359
360	if(train<0. \|\| train >1.){
361	AliWarning("The input data should be in the interval [0, 1]");
362	return;
363	}
364
365	fFreq = train;
366	}
367