SteerESDAnalysisTaskPIDFluctuation(const Char_t *inputfilename, Int_t maxFiles = kMaxInt, Int_t maxEv = kMaxInt)
{
/* include path for ACLic */
gSystem->AddIncludePath("-I$ALICE_ROOT/include");
gSystem->AddIncludePath("-I$ALICE_ROOT/TOF");
/* load libraries */
gSystem->Load("libANALYSIS");
gSystem->Load("libANALYSISalice");
/* build analysis task class */
gROOT->LoadMacro("AliAnalysisTaskPIDFluctuation.cxx+g");
/* setup input chain */
TString str = inputfilename;
const Char_t *filename;
TChain *chain = new TChain("esdTree");
if (str.EndsWith(".xml")) {
TGrid::Connect("alien://");
Info("", "reading data list from collection:");
TAlienCollection coll(inputfilename, maxFiles);
coll.Reset();
while (coll.Next()) {
filename = coll.GetTURL();
Info("", Form("%s", filename));
chain->Add(filename);
}
}
else if (str.EndsWith(".txt")) {
Info("", "reading data list from text file:");
ifstream is(inputfilename);
Char_t buf[4096];
while(!is.eof()) {
is.getline(buf, 4096);
if (is.eof()) break;
chain->Add(buf);
Info("", Form("%s", buf));
}
is.close();
}
else {
Info("", "single file:");
filename = inputfilename;
Info("", Form("%s", filename));
chain->Add(filename);
}
Info("", Form("chain is ready: %d events", chain->GetEntries()));
/* create analysis manager */
AliAnalysisManager *mgr = new AliAnalysisManager("EbyEFluctuationPID");
/* define input event handler */
AliESDInputHandler *esdh = new AliESDInputHandler();
esdh->SetReadFriends(kFALSE);
mgr->SetInputEventHandler(esdh);
/* add tasks */
gROOT->LoadMacro("$ALICE_ROOT/ANALYSIS/macros/AddTaskPhysicsSelection.C");
AliPhysicsSelectionTask* physSelTask = AddTaskPhysicsSelection(kFALSE);
gROOT->LoadMacro("$ALICE_ROOT/ANALYSIS/macros/AddTaskCentrality.C");
AliCentralitySelectionTask *centralityTask = AddTaskCentrality();
gROOT->LoadMacro("AddAnalysisTaskPIDFluctuation.C");
AddAnalysisTaskPIDFluctuation(AliAODTrack::kTrkGlobal, 0., 10., -0.8, 0.8);
AddAnalysisTaskPIDFluctuation(AliAODTrack::kTrkTPCOnly, 0., 10., -0.8, 0.8);
AddAnalysisTaskPIDFluctuation(AliAODTrack::kTrkTPCOnly, 0.3, 1.5, -0.8, 0.8);
AddAnalysisTaskPIDFluctuation(AliAODTrack::kTrkTPCOnly, 0.3, 1.5, -0.4, 0.4);
printf("ready-steady-go\n");
/* start analysis */
mgr->SetDebugLevel(0);
if (!mgr->InitAnalysis()) return;
mgr->PrintStatus();
mgr->StartAnalysis("local", chain, maxEv);
/* create dummy file to tell we are done */
gSystem->Exec("touch done");
}
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