1 /**************************************************************************
2 * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. *
4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
7 * Permission to use, copy, modify and distribute this software and its *
8 * documentation strictly for non-commercial purposes is hereby granted *
9 * without fee, provided that the above copyright notice appears in all *
10 * copies and that both the copyright notice and this permission notice *
11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
13 * provided "as is" without express or implied warranty. *
14 **************************************************************************/
18 // A. De Falco, H. Woehri, INFN Cagliari, July 2006
19 // This macro merges several files built with DecodeRecoCocktail.C into
21 // Arguments: foutname = name of the output file
22 // flistname = name of a text file containing the list of files
24 void MergeMuonLight(char *foutname="MuonLightMerged.root",char *flistname="lista.lis"){
25 // up to 2000 input files
28 TClonesArray *muonArray = new TClonesArray("AliMUONTrackLight",2);
29 TClonesArray *dimuonArray = new TClonesArray("AliMUONPairLight",1);
32 TFile *fout = new TFile (foutname,"recreate");
33 TTree *treeOut = new TTree("tree","tree");
34 treeOut->Branch("muons",&muonArray);
35 treeOut->Branch("dimuons",&dimuonArray);
37 char *filename = new char[100];
38 // read the list of input files
39 FILE *pf= fopen(flistname,"r");
42 // open the n input files
44 if (fscanf(pf,"%s",filename)==1) {
45 file[nfiles++] = new TFile (filename);
46 cout << "Opening for input " << filename << endl;
53 for (Int_t ifile=0; ifile<nfiles; ifile++) {
54 printf ("Scanning file %d: %s\n",ifile, file[ifile]->GetName());
55 TTree *tree = (TTree*) file[ifile]->Get("tree");
56 tree->SetBranchAddress("muons",&muonArray);
57 tree->SetBranchAddress("dimuons",&dimuonArray);
58 Int_t nev = tree->GetEntriesFast();
59 printf ("Scanning file %d: %s containing %d events\n",
60 ifile, file[ifile]->GetName(),nev);
61 for (Int_t iev=0; iev<nev; iev++) {