void MainFrame::AddHistArray(const char* chainname, const char* arrayname, const char* plotname)
{

  //  Read back chains

  H1AnalysisChain* Chain = fAnalysis->GetChain(chainname);
 
  cout << "Reading chain" << endl;

  // Get histograms from each chain

  cout << "Getting histos from chain" << endl;

  H1AnalysisHistManager* HistManager = Chain->GetHistManager();

  cout << "Filling arrays of histos" << endl;

  // Fill histogram array

  TObjArray* HistArray = HistManager->GetHistArray(arrayname);

  // Add histogram arrays to plotter
 
  cout << " Histos added to plotter" << endl;

  this->H1AnalysisPlotter::AddHistArray(HistArray, plotname);
  
  cout << "So far, so good!" << endl;

}