Corrected analysis configuration and execution files after changes in PartCorr frame...
[u/mrichter/AliRoot.git] / PWG4 / macros / ana.C
CommitLineData
d92b41ad 1/* $Id: $ */
d92b41ad 2//--------------------------------------------------
3// Example macro to do analysis with the
4// analysis classes in PWG4PartCorr
5// Can be executed with Root and AliRoot
6//
7// Pay attention to the options and definitions
8// set in the lines below
9//
10// Author : Gustavo Conesa Balbastre (INFN-LNF)
11//
12//-------------------------------------------------
13enum anaModes {mLocal, mLocalCAF,mPROOF,mGRID};
14//mLocal: Analyze locally files in your computer
15//mLocalCAF: Analyze locally CAF files
16//mPROOF: Analyze CAF files with PROOF
17
18//---------------------------------------------------------------------------
19//Settings to read locally several files, only for "mLocal" mode
20//The different values are default, they can be set with environmental
21//variables: INDIR, PATTERN, NEVENT, respectivelly
3e0577a2 22char * kInDir = "/user/data/files/";
23char * kPattern = ""; // Data are in files kInDir/kPattern+i
d92b41ad 24Int_t kEvent = 1; // Number of files
25//---------------------------------------------------------------------------
26//Collection file for grid analysis
27char * kXML = "collection.xml";
28//---------------------------------------------------------------------------
29//Scale histograms from file. Change to kTRUE when xsection file exists
30//Put name of file containing xsection
31//Put number of events per ESD file
32//This is an specific case for normalization of Pythia files.
33const Bool_t kGetXSectionFromFileAndScale = kFALSE ;
34const char * kXSFileName = "pyxsec.root";
35const Int_t kNumberOfEventsPerFile = 100;
36//---------------------------------------------------------------------------
37
38const Bool_t kMC = kTRUE; //With real data kMC = kFALSE
39const TString kInputData = "ESD";
3e0577a2 40void ana(Int_t mode=mLocal, TString configName = "ConfigAnalysisPhoton")
d92b41ad 41{
42 // Main
43
44 //--------------------------------------------------------------------
45 // Load analysis libraries
46 // Look at the method below,
47 // change whatever you need for your analysis case
48 // ------------------------------------------------------------------
49 LoadLibraries(mode) ;
50
51 //-------------------------------------------------------------------------------------------------
52 //Create chain from ESD and from cross sections files, look below for options.
53 //-------------------------------------------------------------------------------------------------
54 TChain *chain = new TChain("esdTree") ;
55 TChain * chainxs = new TChain("Xsection") ;
56 CreateChain(mode, chain, chainxs);
57
58 if(chain){
59 AliLog::SetGlobalLogLevel(AliLog::kError);//Minimum prints on screen
60
61 //--------------------------------------
62 // Make the analysis manager
63 //-------------------------------------
64 AliAnalysisManager *mgr = new AliAnalysisManager("Manager", "Manager");
65 // MC handler
66 if(kMC){
67 AliMCEventHandler* mcHandler = new AliMCEventHandler();
68 mcHandler->SetReadTR(kFALSE);//Do not search TrackRef file
69 mgr->SetMCtruthEventHandler(mcHandler);
70 }
71
72 // AOD output handler
73 AliAODHandler* aodoutHandler = new AliAODHandler();
74 aodoutHandler->SetOutputFileName("aod.root");
75 //aodoutHandler->SetCreateNonStandardAOD();
76 mgr->SetOutputEventHandler(aodoutHandler);
77
78 //input
79 if(kInputData == "ESD"){
80 // ESD handler
81 AliESDInputHandler *esdHandler = new AliESDInputHandler();
82 mgr->SetInputEventHandler(esdHandler);
83 }
84 if(kInputData == "AOD"){
85 // AOD handler
86 AliAODInputHandler *aodHandler = new AliAODInputHandler();
87 mgr->SetInputEventHandler(aodHandler);
88 }
89
3e0577a2 90 //mgr->SetDebugLevel(-1); // For debugging, do not uncomment if you want no messages.
d92b41ad 91
92 //-------------------------------------------------------------------------
93 //Define task, put here any other task that you want to use.
94 //-------------------------------------------------------------------------
95 AliAnalysisTaskParticleCorrelation * taskpwg4 = new AliAnalysisTaskParticleCorrelation ("Particle");
96 taskpwg4->SetConfigFileName(configName); //Default name is ConfigAnalysis
3e0577a2 97
d92b41ad 98 mgr->AddTask(taskpwg4);
99
100 // Create containers for input/output
101 AliAnalysisDataContainer *cinput1 = mgr->CreateContainer("cchain",TChain::Class(),
102 AliAnalysisManager::kInputContainer);
103 AliAnalysisDataContainer *coutput1 = mgr->CreateContainer("tree", TTree::Class(),
104 AliAnalysisManager::kOutputContainer, "default");
105 AliAnalysisDataContainer *coutput2 = mgr->CreateContainer("histos", TList::Class(),
106 AliAnalysisManager::kOutputContainer, "histos.root");
107
108 mgr->ConnectInput (taskpwg4, 0, cinput1);
109 mgr->ConnectOutput (taskpwg4, 0, coutput1 );
110 mgr->ConnectOutput (taskpwg4, 1, coutput2 );
111
112 //------------------------
113 //Scaling task
114 //-----------------------
115 Int_t nfiles = chainxs->GetEntries();
3e0577a2 116 //cout<<"Get? "<<kGetXSectionFromFileAndScale<<" nfiles "<<nfiles<<endl;
d92b41ad 117 if(kGetXSectionFromFileAndScale && nfiles > 0){
3e0577a2 118 //cout<<"Init AnaScale"<<endl;
d92b41ad 119 //Get the cross section
120 Double_t xsection=0;
121 Float_t ntrials = 0;
122 GetAverageXsection(chainxs, xsection, ntrials);
123
124 AliAnaScale * scale = new AliAnaScale("scale") ;
125 scale->Set(xsection/ntrials/kNumberOfEventsPerFile/nfiles) ;
3e0577a2 126 scale->MakeSumw2(kFALSE);//If you want histograms with error bars set to kTRUE
127 //scale->SetDebugLevel(2);
d92b41ad 128 mgr->AddTask(scale);
129
130 AliAnalysisDataContainer *coutput3 = mgr->CreateContainer("histosscaled", TList::Class(),
131 AliAnalysisManager::kOutputContainer, "histosscaled.root");
132 mgr->ConnectInput (scale, 0, coutput2);
133 mgr->ConnectOutput (scale, 0, coutput3 );
134 }
135
136 //-----------------------
137 // Run the analysis
138 //-----------------------
139 TString smode = "";
140 if (mode==mLocal || mode == mLocalCAF)
141 smode = "local";
142 else if (mode==mPROOF)
143 smode = "proof";
144 else if (mode==mGRID)
145 smode = "grid";
146
147 mgr->InitAnalysis();
148 mgr->PrintStatus();
149 mgr->StartAnalysis(smode.Data(),chain);
3e0577a2 150
151cout <<" Analysis ended sucessfully "<< endl ;
152
d92b41ad 153 }
154 else cout << "Chain was not produced ! "<<endl;
155
156}
157
158void LoadLibraries(const anaModes mode) {
159
160 //--------------------------------------
161 // Load the needed libraries most of them already loaded by aliroot
162 //--------------------------------------
163 gSystem->Load("libTree.so");
164 gSystem->Load("libGeom.so");
165 gSystem->Load("libVMC.so");
166 gSystem->Load("libXMLIO.so");
167
168 //----------------------------------------------------------
169 // >>>>>>>>>>> Local mode <<<<<<<<<<<<<<
170 //----------------------------------------------------------
171 if (mode==mLocal || mode == mLocalCAF || mode == mGRID) {
172 //--------------------------------------------------------
173 // If you want to use already compiled libraries
174 // in the aliroot distribution
175 //--------------------------------------------------------
176 //gSystem->Load("libSTEERBase");
177 //gSystem->Load("libESD");
178 //gSystem->Load("libAOD");
179 //gSystem->Load("libANALYSIS");
180 //gSystem->Load("libANALYSISalice");
3e0577a2 181 //gSystem->Load("libPHOSUtils");
182 //gSystem->Load("libPWG4PartCorrBase");
183 //gSystem->Load("libPWG4PartCorrDep");
184
d92b41ad 185 //--------------------------------------------------------
186 //If you want to use root and par files from aliroot
187 //--------------------------------------------------------
188 SetupPar("STEERBase");
189 SetupPar("ESD");
190 SetupPar("AOD");
191 SetupPar("ANALYSIS");
192 SetupPar("ANALYSISalice");
3e0577a2 193//If your analysis needs PHOS geometry uncomment following lines
194// SetupPar("PHOSUtils");
195// //Create Geometry
196// TGeoManager::Import("geometry.root") ; //need file "geometry.root" in local dir!!!!
197 SetupPar("PWG4PartCorrBase");
198 SetupPar("PWG4PartCorrDep");
d92b41ad 199 }
200
201 //---------------------------------------------------------
202 // <<<<<<<<<< PROOF mode >>>>>>>>>>>>
203 //---------------------------------------------------------
204 else if (mode==mPROOF) {
205 //
206 // Connect to proof
207 // Put appropriate username here
208 // TProof::Reset("proof://mgheata@lxb6046.cern.ch");
209 TProof::Open("proof://mgheata@lxb6046.cern.ch");
210
211 // gProof->ClearPackages();
212 // gProof->ClearPackage("ESD");
213 // gProof->ClearPackage("AOD");
214 // gProof->ClearPackage("ANALYSIS");
3e0577a2 215 // gProof->ClearPackage("PWG4PartCorrBase");
216 // gProof->ClearPackage("PWG4PartCorrDep");
d92b41ad 217
218 // Enable the STEERBase Package
219 gProof->UploadPackage("STEERBase.par");
220 gProof->EnablePackage("STEERBase");
221 // Enable the ESD Package
222 gProof->UploadPackage("ESD.par");
223 gProof->EnablePackage("ESD");
224 // Enable the AOD Package
225 gProof->UploadPackage("AOD.par");
226 gProof->EnablePackage("AOD");
227 // Enable the Analysis Package
228 gProof->UploadPackage("ANALYSIS.par");
229 gProof->EnablePackage("ANALYSIS");
3e0577a2 230 // Enable the PHOS geometry Package
231 //gProof->UploadPackage("PHOSUtils.par");
232 //gProof->EnablePackage("PHOSUtils");
233 // Enable PartCorr analysis
234 gProof->UploadPackage("PWG4PartCorrBase.par");
235 gProof->EnablePackage("PWG4PartCorrBase");
236 gProof->UploadPackage("PWG4PartCorrDep.par");
237 gProof->EnablePackage("PWG4PartCorrDep");
d92b41ad 238 gProof->ShowEnabledPackages();
239 }
240
241}
242
243void SetupPar(char* pararchivename)
244{
245 //Load par files, create analysis libraries
246 //For testing, if par file already decompressed and modified
247 //classes then do not decompress.
248
249 TString cdir(Form("%s", gSystem->WorkingDirectory() )) ;
250 TString parpar(Form("%s.par", pararchivename)) ;
251 if ( gSystem->AccessPathName(parpar.Data()) ) {
252 gSystem->ChangeDirectory(gSystem->Getenv("ALICE_ROOT")) ;
253 TString processline(Form(".! make %s", parpar.Data())) ;
254 gROOT->ProcessLine(processline.Data()) ;
255 gSystem->ChangeDirectory(cdir) ;
3e0577a2 256 processline = Form(".! mv $ALICE_ROOT/%s .", parpar.Data()) ;
d92b41ad 257 gROOT->ProcessLine(processline.Data()) ;
258 }
259 if ( gSystem->AccessPathName(pararchivename) ) {
260 TString processline = Form(".! tar xvzf %s",parpar.Data()) ;
261 gROOT->ProcessLine(processline.Data());
262 }
263
264 TString ocwd = gSystem->WorkingDirectory();
265 gSystem->ChangeDirectory(pararchivename);
266
267 // check for BUILD.sh and execute
268 if (!gSystem->AccessPathName("PROOF-INF/BUILD.sh")) {
269 printf("*******************************\n");
270 printf("*** Building PAR archive ***\n");
271 cout<<pararchivename<<endl;
272 printf("*******************************\n");
273
274 if (gSystem->Exec("PROOF-INF/BUILD.sh")) {
275 Error("runProcess","Cannot Build the PAR Archive! - Abort!");
276 return -1;
277 }
278 }
279 // check for SETUP.C and execute
280 if (!gSystem->AccessPathName("PROOF-INF/SETUP.C")) {
281 printf("*******************************\n");
282 printf("*** Setup PAR archive ***\n");
283 cout<<pararchivename<<endl;
284 printf("*******************************\n");
285 gROOT->Macro("PROOF-INF/SETUP.C");
286 }
287
288 gSystem->ChangeDirectory(ocwd.Data());
289 printf("Current dir: %s\n", ocwd.Data());
290}
291
292
293
294void CreateChain(const anaModes mode, TChain * chain, TChain * chainxs){
295 //Fills chain with data
296 TString ocwd = gSystem->WorkingDirectory();
297
298 //-----------------------------------------------------------
299 //Analysis of CAF data locally and with PROOF
300 //-----------------------------------------------------------
301 if(mode ==mPROOF || mode ==mLocalCAF){
302 // Chain from CAF
303 gROOT->LoadMacro("$ALICE_ROOT/PWG0/CreateESDChain.C");
304 // The second parameter is the number of input files in the chain
305 chain = CreateESDChain("ESD12001.txt", 5);
306 }
307
308 //---------------------------------------
309 //Local files analysis
310 //---------------------------------------
311 else if(mode == mLocal){
312 //If you want to add several ESD files sitting in a common directory INDIR
313 //Specify as environmental variables the directory (INDIR), the number of files
314 //to analyze (NEVENT) and the pattern name of the directories with files (PATTERN)
315
316 if(gSystem->Getenv("INDIR"))
317 kInDir = gSystem->Getenv("INDIR") ;
318 else cout<<"INDIR not set, use default: "<<kInDir<<endl;
319
320 if(gSystem->Getenv("PATTERN"))
321 kPattern = gSystem->Getenv("PATTERN") ;
322 else cout<<"PATTERN not set, use default: "<<kPattern<<endl;
323
324 if(gSystem->Getenv("NEVENT"))
325 kEvent = atoi(gSystem->Getenv("NEVENT")) ;
326 else cout<<"NEVENT not set, use default: "<<kEvent<<endl;
327
328 //Check if env variables are set and are correct
329 if ( kInDir && kEvent) {
330 printf("Get %d files from directory %s\n",kEvent,kInDir);
331 if ( ! gSystem->cd(kInDir) ) {//check if ESDs directory exist
332 printf("%s does not exist\n", kInDir) ;
333 return ;
334 }
335 cout<<"INDIR : "<<kInDir<<endl;
336 cout<<"NEVENT : "<<kEvent<<endl;
337 cout<<"PATTERN: " <<kPattern<<endl;
338
339 //Loop on ESD files, add them to chain
340 Int_t event =0;
341 Int_t skipped=0 ;
342 char file[120] ;
343 char filexs[120] ;
344
345 for (event = 0 ; event < kEvent ; event++) {
346 sprintf(file, "%s/%s%d/AliESDs.root", kInDir,kPattern,event) ;
347 sprintf(filexs, "%s/%s%d/%s", kInDir,kPattern,event,kXSFileName) ;
348 TFile * fESD = 0 ;
349 //Check if file exists and add it, if not skip it
350 if ( fESD = TFile::Open(file)) {
351 if ( fESD->Get("esdTree") ) {
352 printf("++++ Adding %s\n", file) ;
353 chain->AddFile(file);
354 chainxs->Add(filexs) ;
355 }
356 }
357 else {
358 printf("---- Skipping %s\n", file) ;
359 skipped++ ;
360 }
361 }
362 printf("number of entries # %lld, skipped %d\n", chain->GetEntries(), skipped*100) ;
363 }
364 else {
365 TString input = "AliESDs.root" ;
366 cout<<">>>>>> No list added, take a single file <<<<<<<<< "<<input<<endl;
367 chain->AddFile(input);
368 }
369
370 }// local files analysis
371
372 //------------------------------
373 //GRID xml files
374 //-----------------------------
375 else if(mode == mGRID){
376 //Get colection file. It is specified by the environmental
377 //variable XML
378
379 if(gSystem->Getenv("XML") )
380 kXML = gSystem->Getenv("XML");
381 else
382 sprintf(kXML, "collection.xml") ;
383
384 if (!TFile::Open(kXML)) {
385 printf("No collection file with name -- %s -- was found\n",kXML);
386 return ;
387 }
388 else cout<<"XML file "<<kXML<<endl;
389
390 //Load necessary libraries and connect to the GRID
391 gSystem->Load("libNetx.so") ;
392 gSystem->Load("libRAliEn.so");
393 TGrid::Connect("alien://") ;
394
395 //Feed Grid with collection file
396 //TGridCollection * collection = (TGridCollection*)gROOT->ProcessLine(Form("TAlienCollection::Open(\"%s\", 0)", kXML));
397 TGridCollection * collection = (TGridCollection*) TAlienCollection::Open(kXML);
398 if (! collection) {
399 AliError(Form("%s not found", kXML)) ;
400 return kFALSE ;
401 }
402 TGridResult* result = collection->GetGridResult("",0 ,0);
403
404 // Makes the ESD chain
405 printf("*** Getting the Chain ***\n");
406 for (Int_t index = 0; index < result->GetEntries(); index++) {
407 TString alienURL = result->GetKey(index, "turl") ;
408 cout << "================== " << alienURL << endl ;
409 chain->Add(alienURL) ;
410 alienURL.ReplaceAll("AliESDs.root",kXSFileName);
411 chainxs->Add(alienURL) ;
412 }
413 }// xml analysis
414
415 gSystem->ChangeDirectory(ocwd.Data());
416}
417
418//________________________________________________
419void GetAverageXsection(TTree * tree, Double_t & xs, Float_t & ntr)
420{
421 // Read the PYTHIA statistics from the file pyxsec.root created by
422 // the function WriteXsection():
423 // integrated cross section (xsection) and
424 // the number of Pyevent() calls (ntrials)
425 // and calculate the weight per one event xsection/ntrials
426 // The spectrum calculated by a user should be
427 // multiplied by this weight, something like this:
428 // TH1F *userSpectrum ... // book and fill the spectrum
429 // userSpectrum->Scale(weight)
430 //
431 // Yuri Kharlov 19 June 2007
432 // Gustavo Conesa 15 April 2008
433 Double_t xsection = 0;
434 UInt_t ntrials = 0;
435 xs = 0;
436 ntr = 0;
437
438 Int_t nfiles = tree->GetEntries() ;
439 if (tree && nfiles > 0) {
440 tree->SetBranchAddress("xsection",&xsection);
441 tree->SetBranchAddress("ntrials",&ntrials);
442 for(Int_t i = 0; i < nfiles; i++){
443 tree->GetEntry(i);
444 xs += xsection ;
445 ntr += ntrials ;
446 cout << "xsection " <<xsection<<" ntrials "<<ntrials<<endl;
447 }
448
449 xs = xs / nfiles;
450 ntr = ntr / nfiles;
451 cout << "-----------------------------------------------------------------"<<endl;
452 cout << "Average of "<< nfiles<<" files: xsection " <<xs<<" ntrials "<<ntr<<endl;
453 cout << "-----------------------------------------------------------------"<<endl;
454 }
455 else cout << " >>>> Empty tree !!!! <<<<< "<<endl;
456
457}
458
459
460