Bool_t AliT0CalibTimeEq::ComputeOnlineParams(const char* filePhys)
{
// compute online equalized time
- Double_t mean=0, meanver=0;
- Double_t rms=0, rmsver=0;
- Int_t nent=0;
+ Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ // Double_t rms=0, rmscfd=0;
+ Double_t rmsver=0;
+ Int_t nent=0;
Bool_t ok=false;
gFile = TFile::Open(filePhys);
- if(!gFile) {
+ 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,"CFD1-CFD%d",i+1);
- TH1F *cfd = (TH1F*) gFile->Get(buf1);
+ 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 histograms collected by PHYS DA for channel %i", i));
// printf(" i = %d buf1 = %s\n", i, buf1);
if(cfd) {
- mean=cfd->GetMean();
- rms=cfd->GetRMS();
- nent=cfd->GetEntries();
- // printf ("%f %f %i \n",mean,rms,nent);
- if(nent<200 || rms>10 ) ok=false;
+ GetMeanAndSigma(cfd, meandiff, sigmadiff);
+ nent=cfd->GetEntries();
+ if(nent<500 || cfd->GetRMS()>20. ) {
+ ok=false;
+ AliWarning(Form("Data is not good enouph in PMT %i - mean %f rsm %f nentries %i", i,meandiff,sigmadiff , nent));
+
+ }
+ else
+ {
+ ok=false;
+ AliWarning(Form("Data is not good enouph in PMT %i , no clean peak", i));
+ }
+ if(!cfd) AliWarning(Form("no histograms collected by PHYS DA for channel %i", i));
+ }
+ // printf(" i = %d buf1 = %s\n", i, buf1);
+ if(cfdtime) {
+ GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
+ nent=cfdtime->GetEntries();
+ if(nent<500 || sigmacfdtime>30. ) {
+ ok=false;
+ AliWarning(Form("Data is not good enouph in PMT %i CFD data - meancfdtime %f rsm %f nentries %i", i,meancfdtime, sigmacfdtime, nent));
+
+ }
}
- SetTimeEq(i,mean);
- SetTimeEqRms(i,rms);
+ else
+ {
+ ok=false;
+ AliWarning(Form("Data is not good enouph in PMT %i , no clean peak", i));
+ }
+
+
+
+ SetTimeEq(i,meandiff);
+ SetTimeEqRms(i,sigmadiff);
+ SetCFDvalue(i,0,meancfdtime);
+ SetCFDvalue(i,0,sigmacfdtime);
if (cfd) delete cfd;
+ if (cfdtime) delete cfdtime;
+
}
TH1F *ver = (TH1F*) gFile->Get("hVertex");
- if(!ver) AliWarning("no Vertex histograms collected by PHYS DA for Zvertex");
+ if(!ver) AliWarning("no T0 histogram collected by PHYS DA ");
if(ver) {
meanver = ver->GetMean();
rmsver = ver->GetRMS();
return ok;
}
+//________________________________________________________________
+Bool_t AliT0CalibTimeEq::ComputeOfflineParams(const char* filePhys)
+{
+ // compute online equalized time
+ Float_t meandiff, sigmadiff, meanver, meancfdtime, sigmacfdtime;
+ meandiff = sigmadiff = meanver = meancfdtime = sigmacfdtime =0;
+ // Double_t rms=0, rmscfd=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 ");
+ }
+ else
+ {
+ // gFile->ls();
+ ok=true;
+ TObjArray * TzeroObj = (TObjArray*) gFile->Get("fTzeroObject");
+ for (Int_t i=0; i<24; i++)
+ {
+ TH1F *cfddiff = (TH1F*)TzeroObj->At(i);
+ TH1F *cfdtime = (TH1F*)TzeroObj->At(i+24);
+ if(!cfddiff) AliWarning(Form("no histograms collected by PHYS DA for channel %i", i));
+ // printf(" i = %d buf1 = %s\n", i, buf1);
+ if(cfddiff) {
+ GetMeanAndSigma(cfddiff,meandiff, sigmadiff);
+ nent=cfddiff->GetEntries();
+ if(nent<500 || cfddiff->GetRMS()>20. ) {
+ ok=false;
+ AliWarning(Form("Data is not good enouph in PMT %i - mean %f rsm %f nentries %i", i,meandiff,sigmadiff, nent));
+
+ }
+ else
+ {
+ ok=false;
+ AliWarning(Form("Data is not good enouph in PMT %i , no clean peak", i));
+ }
+ if(!cfdtime) AliWarning(Form("no histograms collected by PHYS DA for channel %i", i));
+ // printf(" i = %d buf1 = %s\n", i, buf1);
+ if(cfdtime) {
+ GetMeanAndSigma(cfdtime,meancfdtime, sigmacfdtime);
+ nent=cfdtime->GetEntries();
+ if(nent<500 || cfdtime->GetRMS()>30. ) {
+ ok=false;
+ AliWarning(Form("Data is not good enouph in PMT %i CFD data - mean %f rsm %f nentries %i", i,meancfdtime, sigmacfdtime, nent));
+
+ }
+ }
+ else
+ {
+ ok=false;
+ AliWarning(Form("Data is not good enouph in PMT %i , no clean peak", i));
+ }
+ }
+
+
+ SetTimeEq(i,meandiff);
+ SetTimeEqRms(i,sigmadiff);
+ SetCFDvalue(i,0,meancfdtime);
+ SetCFDvalue(i,0,sigmacfdtime);
+ if (cfddiff) delete cfddiff;
+ 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;
+}
+
+//________________________________________________________________________
+void AliT0CalibTimeEq::GetMeanAndSigma(TH1F* hist, Float_t &mean, Float_t &sigma) {
+
+ const double window = 5.; //fit window
+ double norm = hist->Integral(); // normalize to one count
+ hist->Scale(1./norm);
+
+ 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","R");
+
+ mean = (Float_t) fit->GetParameter(1);
+ sigma = (Float_t) fit->GetParameter(2);
+
+ delete fit;
+}
+
git://git.uio.no / u / mrichter / AliRoot.git / blobdiff