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 // saveAll = boolian that allows/forbids saving of events with no muons
25 void MergeMuonLight(char *foutname="MuonLightMerged.root",char *flistname="lista.lis", Bool_t saveAll = kTRUE){
26 // up to 2000 input files
29 TClonesArray *muonArray = new TClonesArray("AliMUONTrackLight",2);
30 TClonesArray *dimuonArray = new TClonesArray("AliMUONPairLight",1);
33 TFile *fout = new TFile (foutname,"recreate");
34 TTree *treeOut = new TTree("tree","tree");
35 treeOut->Branch("muons",&muonArray);
36 treeOut->Branch("dimuons",&dimuonArray);
38 char *filename = new char[100];
39 // read the list of input files
40 FILE *pf= fopen(flistname,"r");
43 // open the n input files
45 if (fscanf(pf,"%s",filename)==1) {
46 file[nfiles++] = new TFile (filename);
47 cout << "Opening for input " << filename << endl;
54 for (Int_t ifile=0; ifile<nfiles; ifile++) {
55 printf ("Scanning file %d: %s\n",ifile, file[ifile]->GetName());
56 TTree *tree = (TTree*) file[ifile]->Get("tree");
57 tree->SetBranchAddress("muons",&muonArray);
58 tree->SetBranchAddress("dimuons",&dimuonArray);
59 Int_t nev = tree->GetEntriesFast();
60 printf ("Scanning file %d: %s containing %d events\n",
61 ifile, file[ifile]->GetName(),nev);
62 for (Int_t iev=0; iev<nev; iev++) {
64 Int_t nMu = muonArray->GetEntriesFast();
70 }//end of scanning incoming file