TLegend not showing

[bethlong06]

I have the following macro, which produces a nice TRatioPlot but won’t show the legend. The values in the constructor are copied from another macro where it works, and i chose them because I want the legend in the top right corner. Any ideas why it isn’t working?

void HitClusEVetoComparison(){

  TFile *_file0 = TFile::Open("/Users/bethlong/Downloads/Run660_AnalysisOutputFile.root");
  double bottommargin = 0.15;
  double topmargin = 0.05;
  double leftmargin = 0.06;
  double rightmargin = 0.015;
  gStyle->SetPadBottomMargin(bottommargin);
  gStyle->SetPadTopMargin(topmargin);
  gStyle->SetPadLeftMargin(leftmargin);
  gStyle->SetPadRightMargin(rightmargin);

  gStyle->SetOptStat(0);
  
  TH1F* hEHit = (TH1F*) _file0->Get("EVetoHits/hEVetoHitCh");
  TH1F* hEClu = (TH1F*) _file0->Get("EVetoClusters/hChEVetoCluster");

  hEHit->SetTitle(";EVetoChannelID;");
  
  hEClu->SetLineColor(kRed);
  
  TCanvas* c = new TCanvas("c","c",900,700);  
  TRatioPlot* rEVeto = new TRatioPlot(hEHit,hEClu);
  rEVeto->Draw();

  TLegend* legend = new TLegend(0.81,0.81,0.98,0.970);
  legend->AddEntry(hEHit,"Hit Occupancy");
  legend->AddEntry(hEClu,"Cluster Occupancy");
  legend->SetTextAlign(22);
  legend->Draw();

  rEVeto->SetLowBottomMargin(bottommargin);
  rEVeto->SetUpTopMargin(topmargin);
  rEVeto->SetLeftMargin(leftmargin);
  rEVeto->SetRightMargin(rightmargin);

  rEVeto->GetLowerRefYaxis()->SetTitle("NHits/NClusters");

}

[Wile_E_Coyote]

TRatioPlot

[bethlong06]

Thank you, I didn’t realised you had to cd() to the upper pad.