Project CMSSW displayed by LXR |
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File indexing completed on 2024-04-06 12:33:36
0001 gSystem->Load("libFWCoreFWLite"); 0002 0003 FWLiteEnabler::enable(); 0004 0005 // reco file with vertices 0006 TFile f("pv_reco.root"); 0007 TBrowser a; 0008 0009 Events->SetAlias("pv", "recoVertexs_offlinePrimaryVerticesFromCTFTracks__Demo.obj"); 0010 0011 // position distributions 0012 Events->Draw("pv.x()"); 0013 Events->Draw("pv.z()"); 0014 0015 // error on x 0016 Events->Draw("sqrt(pv.covariance(0, 0))"); 0017 0018 // pull on x 0019 Events->Draw("pv.x()/sqrt(pv.covariance(0, 0))");
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