1 /**************************************************************************
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4 * Author: The ALICE Off-line Project. *
5 * Contributors are mentioned in the code where appropriate. *
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11 * appear in the supporting documentation. The authors make no claims *
12 * about the suitability of this software for any purpose. It is *
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14 **************************************************************************/
19 /// \file MergeMuonLight.C
20 /// \brief This macro merges several files built with DecodeRecoCocktail.C into
23 /// \author A. De Falco, H. Woehri, INFN Cagliari, July 2006
25 #if !defined(__CINT__) || defined(__MAKECINT__)
28 #include "TClonesArray.h"
29 #include "AliMUONTrackLight.h"
30 #include "AliMUONPairLight.h"
34 void MergeMuonLight(char *foutname="MuonLightMerged.root",char *flistname="lista.lis", Bool_t saveAll = kTRUE)
36 /// \param foutname name of the output file
37 /// \param flistname name of a text file containing the list of files
39 /// \param saveAll boolian that allows/forbids saving of events with no muons
41 // up to 2000 input files
44 TClonesArray *muonArray = new TClonesArray("AliMUONTrackLight",2);
45 TClonesArray *dimuonArray = new TClonesArray("AliMUONPairLight",1);
48 TFile *fout = new TFile (foutname,"recreate");
49 TTree *treeOut = new TTree("tree","tree");
50 treeOut->Branch("muons",&muonArray);
51 treeOut->Branch("dimuons",&dimuonArray);
53 char *filename = new char[100];
54 // read the list of input files
55 FILE *pf= fopen(flistname,"r");
58 // open the n input files
60 if (fscanf(pf,"%s",filename)==1) {
61 file[nfiles++] = new TFile (filename);
62 printf("Opening for input %s", filename);
69 for (Int_t ifile=0; ifile<nfiles; ifile++) {
70 printf ("Scanning file %d: %s\n",ifile, file[ifile]->GetName());
71 TTree *tree = (TTree*) file[ifile]->Get("tree");
72 tree->SetBranchAddress("muons",&muonArray);
73 tree->SetBranchAddress("dimuons",&dimuonArray);
74 Int_t nev = tree->GetEntriesFast();
75 printf ("Scanning file %d: %s containing %d events\n",
76 ifile, file[ifile]->GetName(),nev);
77 for (Int_t iev=0; iev<nev; iev++) {
79 Int_t nMu = muonArray->GetEntriesFast();
85 }//end of scanning incoming file