C++ TDirectory::Add方法代码示例

  /** 
   * Process a single eta bin 
   * 
   * @param measured     Input collection of measured data
   * @param corrections  Input collection of correction data
   * @param method       Unfolding method to use 
   * @param regParam     Regularisation parameter
   * @param out          Output directory. 
   *
   * @return Stack of histograms or null 
   */
  THStack* ProcessBin(TCollection* measured, 
		      TCollection* corrections, 
		      UInt_t       method,
		      Double_t     regParam, 
		      TDirectory*  out)
  {
    Printf("   Processing %s ...", measured->GetName());
    // Try to get the data 
    TH1* inRaw    = GetH1(measured,    "rawDist");
    TH1* inTruth  = GetH1(corrections, "truth");
    TH1* inTruthA = GetH1(corrections, "truthAccepted");
    TH1* inTrgVtx = GetH1(corrections, "triggerVertex");
    TH2* inResp   = GetH2(corrections, "response");
    if (!inRaw || !inTruth || !inTruthA || !inTrgVtx || !inResp) 
      return 0;
    
    // Make output directory
    TDirectory* dir = out->mkdir(measured->GetName());
    dir->cd();

    // Copy the input to the output 
    TH1* outRaw    = static_cast<TH1*>(inRaw    ->Clone("measured"));
    TH1* outTruth  = static_cast<TH1*>(inTruth  ->Clone("truth"));
    TH1* outTruthA = static_cast<TH1*>(inTruthA ->Clone("truthAccepted"));
    TH1* outTrgVtx = static_cast<TH1*>(inTrgVtx ->Clone("triggerVertex"));
    TH2* outResp   = static_cast<TH2*>(inResp   ->Clone("response"));

    // Make our response matrix 
    RooUnfoldResponse matrix(0, 0, inResp);
    
    // Store regularization parameter 
    Double_t             r        = regParam;
    RooUnfold::Algorithm algo     = (RooUnfold::Algorithm)method;
    RooUnfold*           unfolder = RooUnfold::New(algo, &matrix, inRaw, r);
    unfolder->SetVerbose(0);

    // Do the unfolding and get the result
    TH1* res = unfolder->Hreco();
    res->SetDirectory(0);

    // Make a copy to store on the output 
    TH1* outUnfold = static_cast<TH1*>(res->Clone("unfolded"));
    TString tit(outUnfold->GetTitle());
    tit.ReplaceAll("Unfold Reponse matrix", "Unfolded P(#it{N}_{ch})");
    outUnfold->SetTitle(tit);

    // Clone the unfolded results and divide by the trigger/vertex
    // bias correction
    TH1* outCorr   = static_cast<TH1*>(outUnfold->Clone("corrected"));
    outCorr->Divide(inTrgVtx);
    tit.ReplaceAll("Unfolded", "Corrected");
    outCorr->SetTitle(tit);

    // Now normalize the output to integral=1 
    TH1*  hists[] = { outRaw, outUnfold, outCorr, 0 };
    TH1** phist   = hists;
    while (*phist) { 
      TH1* h = *phist;
      if (h) { 
	Double_t intg = h->Integral(1, h->GetXaxis()->GetXmax());
	h->Scale(1. / intg, "width");
      }
      phist++;
    }
    
    // And make ratios
    TH1* ratioTrue = static_cast<TH1*>(outCorr->Clone("ratioCorrTruth"));
    tit = ratioTrue->GetTitle();
    tit.ReplaceAll("Corrected", "Corrected/MC 'truth'");
    ratioTrue->SetTitle(tit);
    ratioTrue->Divide(outTruth);
    ratioTrue->SetYTitle("P_{corrected}(#it{N}_{ch})/P_{truth}(#it{N}_{ch})");

    TH1* ratioAcc  = static_cast<TH1*>(outUnfold->Clone("ratioUnfAcc"));
    tit = ratioAcc->GetTitle();
    tit.ReplaceAll("Unfolded", "Unfolded/MC selected");
    ratioAcc->SetTitle(tit);
    ratioAcc->Divide(outTruthA);
    ratioAcc->SetYTitle("P_{unfolded}(#it{N}_{ch})/P_{MC}(#it{N}_{ch})");
    

    // Make a stack 
    tit = measured->GetName();
    tit.ReplaceAll("m", "-");
    tit.ReplaceAll("p", "+");
    tit.ReplaceAll("d", ".");
    tit.ReplaceAll("_", "<#it{#eta}<");
    THStack* stack = new THStack("all", tit);
    stack->Add(outTruth,  "E2");
//.........这里部分代码省略.........

  /** 
   * Process a single type - i.e., one of <i>symmetric</i>,
   * <i>positive</i>, <i>negative</i>, or <i>other</i> - by looping
   * over all contained objects and call ProcessBin for each found
   * bin.
   * 
   * @param measured     Input collection of measured data
   * @param corrections  Input collection of correction data
   * @param method       Unfolding method to use 
   * @param regParam     Regularisation parameter
   * @param out          Output directory. 
   * @param sys          Collision system
   * @param sNN          Collision energy 
   */
  void ProcessType(TCollection* measured, 
		   TCollection* corrections,
		   UInt_t       method,
		   Double_t     regParam,
		   TDirectory*  out,
		   UShort_t     sys, 
		   UShort_t     sNN)
  {
    Printf("  Processing %s ...", measured->GetName());
    TDirectory* dir = out->mkdir(measured->GetName());
    
    // Make some summary stacks 
    THStack*  allMeasured  = new THStack("measured",      
					 "Measured P(#it{N}_{ch})");
    THStack*  allTruth     = new THStack("truth",        
					 "MC 'truth' P(#it{N}_{ch})");
    THStack*  allTruthA    = new THStack("truthAccepted",
					 "MC 'truth' accepted P(#it{N}_{ch})");
    THStack*  allUnfolded  = new THStack("unfolded",
					 "Unfolded P(#it{N}_{ch})");
    THStack*  allCorrected = new THStack("corrected",
					 "Corrected P(#it{N}_{ch})");
    THStack*  allRatio     = (sys != 1 ? 0 : 
			      new THStack("ratios", "Ratios to other"));
    TMultiGraph* allALICE  = (sys != 1 ? 0 : 
			      new TMultiGraph("alice", "ALICE Published"));
    TMultiGraph* allCMS    = (sys != 1 ? 0 : 
			      new TMultiGraph("cms", "CMS Published"));

    // Loop over the list of objects. 
    static TRegexp regex("[pm][0-9]d[0-9]*_[pm][0-9]d[0-9]*");
    TIter          next(measured);
    TObject*       o = 0;
    Int_t          i = 0;
    Double_t       r = regParam;
    while ((o = next())) {
      // Go back to where we where 
      dir->cd();
      
      // if not a collection, don't bother 
      if (!o->IsA()->InheritsFrom(TCollection::Class())) continue;
    
      // If it doesn't match our regular expression, don't bother 
      TString n(o->GetName());
      if (n.Index(regex) == kNPOS) { 
	// Warning("ScanType", "%s in %s doesn't match eta range regexp", 
	//         n.Data(), real->GetName());
	continue;
      }
      TCollection* mBin = static_cast<TCollection*>(o);
      TCollection* cBin = GetCollection(corrections, n.Data());
      if (!cBin) continue;

      THStack* binS = ProcessBin(mBin, cBin, method, r, dir);
      if (!binS) continue;

      TH1* result = 0;
      Bin2Stack(binS, i, allMeasured, allTruth, allTruthA, 
		allUnfolded, allCorrected, result);

      TGraph* alice = 0;
      TGraph* cms   = 0;
      Other2Stack(o->GetName(), i, sNN, allALICE, allCMS, alice, cms);
      Ratio2Stack(i, result, alice, cms, allRatio);
      i++;
    }
    dir->Add(allMeasured);
    dir->Add(allTruth);
    dir->Add(allTruthA);
    dir->Add(allUnfolded);
    dir->Add(allCorrected);
    if (allALICE && allALICE->GetListOfGraphs()) {
      if (allALICE->GetListOfGraphs()->GetEntries() > 0)
	dir->Add(allALICE);
      else 
	delete allALICE;
    }
    if (allCMS && allCMS->GetListOfGraphs()) {
      if (allCMS->GetListOfGraphs()->GetEntries() > 0) 
	dir->Add(allCMS);
      else 
	delete allCMS;
    }
    if (allRatio && allRatio->GetHists()) { 
      if (allRatio->GetHists()->GetEntries() > 0) 
	dir->Add(allRatio);
//.........这里部分代码省略.........