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1c5acb87 | 1 | /************************************************************************** |
2 | * Copyright(c) 1998-1999, ALICE Experiment at CERN, All rights reserved. * | |
3 | * * | |
4 | * Author: The ALICE Off-line Project. * | |
5 | * Contributors are mentioned in the code where appropriate. * | |
6 | * * | |
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 | **************************************************************************/ | |
15 | ||
1c5acb87 | 16 | //_________________________________________________________________________ |
0de1814a | 17 | // A basic analysis task to scale histograms to a given cross section |
1c5acb87 | 18 | // |
19 | //*-- Yves Schutz | |
20 | ////////////////////////////////////////////////////////////////////////////// | |
21 | ||
477d6cee | 22 | //Root system |
1c5acb87 | 23 | #include <TH1.h> |
24 | #include <TH1F.h> | |
1c5acb87 | 25 | |
477d6cee | 26 | //Analysis system |
1c5acb87 | 27 | #include "AliAnaScale.h" |
1c5acb87 | 28 | |
29 | //______________________________________________________________________________ | |
30 | AliAnaScale::AliAnaScale() : | |
31 | fDebug(0), | |
32 | fScale(1.0), | |
33 | fInputList(0x0), | |
34 | fOutputList(0x0), | |
35 | fSumw2(0), | |
36 | fhCount() | |
37 | { | |
38 | //Default constructor | |
39 | } | |
40 | //______________________________________________________________________________ | |
41 | AliAnaScale::AliAnaScale(const char *name) : | |
42 | AliAnalysisTask(name,""), | |
43 | fDebug(0), | |
44 | fScale(1.0), | |
45 | fInputList(0x0), | |
46 | fOutputList(0x0), | |
47 | fSumw2(0), | |
48 | fhCount(0) | |
49 | { | |
50 | // Constructor. | |
51 | // Called only after the event loop | |
52 | SetPostEventLoop(kTRUE); | |
53 | // Input slot #0 | |
54 | DefineInput(0, TList::Class()) ; | |
55 | // Output slot | |
56 | DefineOutput(0, TList::Class()) ; | |
57 | } | |
58 | ||
59 | //______________________________________________________________________________ | |
60 | AliAnaScale::~AliAnaScale() | |
61 | { | |
62 | // dtor | |
63 | ||
64 | } | |
65 | ||
66 | ||
67 | //______________________________________________________________________________ | |
68 | void AliAnaScale::ConnectInputData(const Option_t*) | |
69 | { | |
70 | // Initialisation of branch container and histograms | |
71 | ||
72 | if(fDebug > 1) printf("*** Initialization of %s \n", GetName()) ; | |
73 | fInputList = dynamic_cast<TList*>(GetInputData(0)) ; | |
74 | } | |
75 | //________________________________________________________________________ | |
76 | void AliAnaScale::CreateOutputObjects() | |
77 | { | |
78 | // Create the outputs containers | |
79 | ||
80 | fOutputList = new TList() ; | |
81 | fOutputList->SetName(GetName()) ; | |
82 | ||
83 | fhCount =new TH1F("hCount","count files",1,0,1); | |
84 | fOutputList->Add(fhCount); | |
85 | ||
86 | } | |
87 | ||
88 | //______________________________________________________________________________ | |
89 | void AliAnaScale::Exec(Option_t *) | |
90 | { | |
91 | // Do the Scaling | |
92 | ||
93 | if(fDebug > 0 ) printf(">>>>> Scaling factor %e, do Sumw2 %d <<<<< \n",fScale,fSumw2) ; | |
f8006433 | 94 | |
95 | const Int_t buffersize = 255; | |
96 | char name[buffersize] ; | |
1c5acb87 | 97 | |
98 | TIter next(fInputList) ; | |
99 | TObject * h ; | |
100 | while ( (h = next()) ) { | |
101 | if(h){ | |
7175a03a | 102 | if ( !strncmp(h->ClassName(),"TH",2) ) { |
f8006433 | 103 | snprintf(name, buffersize, "%sScaled", h->GetName()) ; |
1c5acb87 | 104 | TH1 * hout = dynamic_cast<TH1*> (h->Clone(name)) ; |
f8006433 | 105 | if(hout){ |
106 | if(fSumw2) hout->Sumw2(); | |
107 | hout->Scale(fScale) ; | |
108 | fOutputList->Add(hout) ; | |
109 | }// casting not null | |
1c5acb87 | 110 | } |
111 | else fOutputList->Add(h) ; | |
112 | } | |
113 | } | |
114 | // number of files | |
115 | ||
116 | //File scaled, needed for file merging on grid | |
117 | fhCount->Fill(0); | |
118 | ||
119 | PostData(0, fOutputList); | |
120 | } | |
121 | ||
122 | ||
123 | //______________________________________________________________________________ | |
124 | void AliAnaScale::Init() | |
125 | { | |
126 | // Intialisation of parameters | |
127 | if(fDebug > 0 )printf("No initialization in scale class \n") ; | |
128 | ||
129 | } | |
130 |