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kukartse |
1.1 |
{
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gROOT -> Reset();
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gROOT -> Clear();
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TFile *file1 = new TFile("muon_jets_fake_data_1fb-summer08-13jun2009.root");
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TFile *file2 = new TFile("TMVApp-data-1fb-14jun2009.root");
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TTree *tree1 = (TTree*)file1 -> Get("data");
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TTree *tree2 = (TTree*)file2 -> Get("classifier");
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tree1->SetBranchStatus("*",1);
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tree2->SetBranchStatus("*",0);
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tree2->SetBranchStatus("MVA_BDT",1);
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Int_t nEntries = tree1 -> GetEntries();
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if (tree2 -> GetEntries() < nEntries) nEntries = tree2 -> GetEntries();
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cout << "The smallest tree has " << nEntries << " entries" << endl;
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//
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//_____ output file ___________________________________________________
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//
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TFile *newfile = new TFile("ljets-data-1fb-classifier-14jun2009.root","recreate");
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//TTree *interface = new TTree("interface", "dummy Title"); // empty tree to attach friends to
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//for (Int_t i=0;i<nEntries;i++) interface -> Fill();
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TTree *newtree1 = tree1 -> CloneTree();
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TTree *newtree2 = tree2 -> CloneTree();
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newtree1 -> SetName("data");
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newtree2 -> SetName("classifier");
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//===> add friends to THE SMALLEST TREE !!!
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//interface -> AddFriend( newtree1 );
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//interface -> AddFriend( newtree2 );
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newtree1 -> AddFriend( newtree2 );
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newfile->Write();
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}
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