Bool_t AliT0CalibTimeEq::ComputeOnlineParams(const char* filePhys)
{
// compute online equalized time
- Double_t mean=0, meanver=0;
- Double_t rms=0, rmsver=0;
+ Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ Double_t rmsver=0;
Int_t nent=0;
Bool_t ok=false;
- Int_t npeaks = 20;
- Int_t sigma=3;
- Bool_t down=false;
- Int_t index[20];
- Int_t nfound=0;
gFile = TFile::Open(filePhys);
if(!gFile) {
AliError("No input PHYS data found ");
}
else
{
- // gFile->ls();
ok=true;
- Char_t buf1[30];
for (Int_t i=0; i<24; i++)
{
- sprintf(buf1,"CFD1minCFD%d",i+1);
- TH1F *cfd = (TH1F*) gFile->Get(buf1);
- if(!cfd) AliWarning(Form("no histograms collected by PHYS DA for channel %i", i));
- // printf(" i = %d buf1 = %s\n", i, buf1);
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ TH1F *cfd = (TH1F*) gFile->Get(Form("CFD1minCFD%d",i+1));
+ TH1F *cfdtime = (TH1F*) gFile->Get(Form("CFD%d",i+1));
+ if(!cfd) AliWarning(Form("no Diff histograms collected by PHYS DA for channel %i", i));
+ if(!cfdtime) AliWarning(Form("no CFD histograms collected by PHYS DA for channel %i", i));
if(cfd) {
- TSpectrum *s = new TSpectrum(2*npeaks,1);
- nfound = s->Search(cfd,sigma," ",0.1);
- if(nfound!=0){
- Float_t *xpeak = s->GetPositionX();
- TMath::Sort(nfound, xpeak, index,down);
- Float_t xp = xpeak[index[0]];
- Double_t hmax = xp+3*sigma;
- Double_t hmin = xp-3*sigma;
- cfd->GetXaxis()->SetRangeUser(hmin-20,hmax+20);
- mean=cfd->GetMean();
- rms=cfd->GetRMS();
- nent=cfd->GetEntries();
- if(nent<500 || rms>10. ) {
+ nent = Int_t(cfd->GetEntries());
+ if(nent>500) {
+ if(cfd->GetRMS()>1.5 )
+ GetMeanAndSigma(cfd, meandiff, sigmadiff);
+ if(cfd->GetRMS()<=1.5)
+ {
+ meandiff = cfd->GetMean();
+ sigmadiff=cfd->GetRMS();
+ }
+ Int_t maxBin = cfd->GetMaximumBin();
+ Double_t meanEstimate = cfd->GetBinCenter( maxBin);
+ if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate;
+ }
+ else
+ {
+ ok=false;
+ AliWarning(Form(" Not enouph data in PMT %i- PMT1: %i ", i, nent));
+ }
+ if(!cfd) AliWarning(Form("no CFD histograms collected by PHYS DA for channel %i", i));
+ }
+ // printf(" i = %d buf1 = %s\n", i, buf1);
+ if(cfdtime) {
+ nent = Int_t(cfdtime->GetEntries());
+ if(nent > 500 ) { //!!!!!!!!!!
+ if(cfdtime->GetRMS()>1.5 )
+ GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
+ if(cfdtime->GetRMS()<=1.5)
+ {
+ meancfdtime = cfdtime->GetMean();
+ sigmacfdtime = cfdtime->GetRMS();
+ }
+ Int_t maxBin = cfdtime->GetMaximumBin();
+ Double_t meanEstimate = cfdtime->GetBinCenter( maxBin);
+ if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate;
+ }
+ }
+ else
+ {
+ ok=false;
+ AliWarning(Form(" Not enouph data in PMT in CFD peak %i - %i ", i, nent));
+ }
+ SetTimeEq(i,meandiff);
+ SetTimeEqRms(i,sigmadiff);
+ SetCFDvalue(i,0,meancfdtime);
+ if (cfd) delete cfd;
+ if (cfdtime) delete cfdtime;
+
+ }
+ TH1F *ver = (TH1F*) gFile->Get("hVertex");
+ if(!ver) AliWarning("no T0 histogram collected by PHYS DA ");
+ if(ver) {
+ meanver = ver->GetMean();
+ rmsver = ver->GetRMS();
+ }
+ SetMeanVertex(meanver);
+ SetRmsVertex(rmsver);
+
+ gFile->Close();
+ delete gFile;
+
+ }
+ return ok;
+}
+
+//________________________________________________________________
+Bool_t AliT0CalibTimeEq::ComputeOfflineParams(const char* filePhys, Float_t *timecdb, Float_t *cfdvalue, Int_t badpmt)
+{
+ // compute online equalized time
+ Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ Double_t rmsver=0;
+ Int_t nent=0;
+ Bool_t ok=false;
+ gFile = TFile::Open(filePhys);
+ if(!gFile) {
+ AliError("No input PHYS data found ");
+ return ok;
+ }
+ else
+ {
+
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ ok=true;
+ TDirectory *dr = (TDirectory*) gFile->Get("T0Calib");
+ if (!dr ) { AliError("No input T0calib found ");
+ return ok;
+ }
+ TObjArray * TzeroObj = (TObjArray*) dr->Get("fTzeroObject");
+ for (Int_t i=0; i<24; i++)
+ {
+ if (i != badpmt) {
+ TH1F *cfddiff = (TH1F*)TzeroObj->At(i);
+ TH1F *cfdtime = (TH1F*)TzeroObj->At(i+24);
+ if(!cfddiff) AliWarning(Form("no Diff histograms collected by PHYS DA for channel %i", i));
+ // printf(" i = %d buf1 = %s\n", i, buf1);
+ if(!cfdtime) AliWarning(Form("no CFD histograms collected by PHYS DA for channel %i", i));
+ if(cfddiff) {
+ nent = Int_t(cfddiff->GetEntries());
+ if(nent>500 ) { //!!!!!
+ if(cfddiff->GetRMS()>1.5 )
+ GetMeanAndSigma(cfddiff, meandiff, sigmadiff);
+ if(cfddiff->GetRMS()<=1.5)
+ {
+ meandiff = cfddiff->GetMean();
+ sigmadiff = cfddiff->GetRMS();
+ }
+ Int_t maxBin = cfddiff->GetMaximumBin();
+ Double_t meanEstimate = cfddiff->GetBinCenter( maxBin);
+ if(TMath::Abs(meanEstimate - meandiff) > 20 ) meandiff = meanEstimate;
+
+ }
+ else
+ {
ok=false;
- AliWarning(Form("Data is not good enouph in PMT %i - mean %f rsm %f nentries %i", i,mean, rms, nent));
-
+ AliWarning(Form(" Not enouph data in PMT %i- PMT1: %i ", i, nent));
}
+ }
+ if(cfdtime) {
+ nent = Int_t(cfdtime->GetEntries());
+ if(nent>500 ) { //!!!!!
+ if(cfdtime->GetRMS()>1.5 )
+ GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
+ if(cfdtime->GetRMS()<=1.5)
+ {
+ meancfdtime = cfdtime->GetMean();
+ sigmacfdtime=cfdtime->GetRMS();
+ }
+ Int_t maxBin = cfdtime->GetMaximumBin();
+ Double_t meanEstimate = cfdtime->GetBinCenter( maxBin);
+ if(TMath::Abs(meanEstimate - meancfdtime) > 20 ) meancfdtime = meanEstimate;
}
else
{
ok=false;
- AliWarning(Form("Data is not good enouph in PMT %i , no clean peak", i));
+ AliWarning(Form(" Not enouph data in PMT in CFD peak %i - %i ", i, nent));
}
}
-
-
- SetTimeEq(i,mean);
- SetTimeEqRms(i,rms);
- if (cfd) delete cfd;
+ SetTimeEq(i,timecdb[i] + meandiff);
+ SetTimeEqRms(i,sigmadiff);
+ SetCFDvalue(i,0,cfdvalue[i] );
+ if (cfddiff) delete cfddiff;
+ if (cfdtime) delete cfdtime;
+ } //bad pmt
}
TH1F *ver = (TH1F*) gFile->Get("hVertex");
if(!ver) AliWarning("no T0 histogram collected by PHYS DA ");
}
return ok;
+ }
+
+//________________________________________________________________________
+void AliT0CalibTimeEq::GetMeanAndSigma(TH1F* hist, Float_t &mean, Float_t &sigma) {
+
+ const double window = 2.; //fit window
+
+ double meanEstimate, sigmaEstimate;
+ int maxBin;
+ maxBin = hist->GetMaximumBin(); //position of maximum
+ meanEstimate = hist->GetBinCenter( maxBin); // mean of gaussian sitting in maximum
+ sigmaEstimate = hist->GetRMS();
+ TF1* fit= new TF1("fit","gaus", meanEstimate - window*sigmaEstimate, meanEstimate + window*sigmaEstimate);
+ fit->SetParameters(hist->GetBinContent(maxBin), meanEstimate, sigmaEstimate);
+ hist->Fit("fit","RQ","Q");
+
+ mean = (Float_t) fit->GetParameter(1);
+ sigma = (Float_t) fit->GetParameter(2);
+
+ delete fit;
}
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff