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root/cvsroot/UserCode/JetFitAnalyzer/src/JetFitAnalyzer.cc
Revision: 1.2
Committed: Wed Oct 14 02:46:26 2009 UTC (15 years, 6 months ago) by dnisson
Content type: text/plain
Branch: MAIN
Changes since 1.1: +11 -6 lines
Log Message:
Changed to respond to null histograms appropriately

File Contents

# User Rev Content
1 dnisson 1.1 // -*- C++ -*-
2     //
3     // Package: JetFitAnalyzer
4     // Class: JetFitAnalyzer
5     //
6     /**\class JetFitAnalyzer JetFitAnalyzer.cc UserCode/JetFitAnalyzer/src/JetFitAnalyzer.cc
7    
8     Description: Base class for using jetfit with CMSSW
9    
10     Implementation:
11     o Method make_histo is used to prepare a histogram for analysis;
12     the user can read this from a file or generate from the actual event
13     o Method make_model_def is used to define a formula and initial
14     parameters for the model used
15     o Method analyze_results performs user analysis on results;
16     the user is given a trouble vector and the original histogram in
17     addition.
18     o The function pointer user_minuit defines what to do after each fit
19     is done. The pointer should be obtained in the subclass constructor.
20     */
21     //
22     // Original Author: David Nisson
23     // Created: Wed Aug 5 16:38:38 PDT 2009
24 dnisson 1.2 // $Id: JetFitAnalyzer.cc,v 1.1 2009/09/02 21:44:14 dnisson Exp $
25 dnisson 1.1 //
26     //
27    
28     #include "UserCode/JetFitAnalyzer/interface/JetFitAnalyzer.h"
29    
30     #include <vector>
31    
32     JetFitAnalyzer::JetFitAnalyzer(const edm::ParameterSet& iConfig)
33     : user_minuit(0)
34     {
35     // get parameters from iConfig
36     ignorezero_ = iConfig.getUntrackedParameter("ignorezero", false);
37     rebinX_ = iConfig.getUntrackedParameter("rebinX", 1);
38     rebinY_ = iConfig.getUntrackedParameter("rebinY", 1);
39     P_cutoff_val_ = iConfig.getUntrackedParameter("P_cutoff_val", 0.5);
40    
41     jetfit::set_ignorezero(ignorezero_);
42     }
43    
44    
45     JetFitAnalyzer::~JetFitAnalyzer()
46     {
47    
48     // do anything here that needs to be done at desctruction time
49     // (e.g. close files, deallocate resources etc.)
50    
51     }
52    
53    
54     //
55     // member functions
56     //
57    
58     // ------------ method called to for each event ------------
59     void
60     JetFitAnalyzer::analyze(const edm::Event& iEvent, const edm::EventSetup& iSetup)
61     {
62     using namespace edm;
63    
64     jetfit::results r; std::vector<jetfit::trouble> t;
65    
66     TH2D *histo = make_histo(iEvent, iSetup);
67 dnisson 1.2 if (histo != 0) {
68     jetfit::model_def &_mdef = make_model_def(iEvent, iSetup, histo);
69     jetfit::set_model_def(&_mdef);
70     r = jetfit::fit_histo(histo, t, user_minuit, _mdef.get_n_special_par_sets(),
71     rebinX_, rebinY_, P_cutoff_val_);
72     analyze_results(r, t, histo);
73     }
74     else {
75     cerr << "Fitting not performed" << endl;
76     }
77 dnisson 1.1 }
78    
79    
80     // ------------ method called once each job just before starting event loop ------------
81     void
82     JetFitAnalyzer::beginJob(const edm::EventSetup&)
83     {
84     }
85    
86     // ------------ method called once each job just after ending the event loop ------------
87     void
88     JetFitAnalyzer::endJob() {
89     }
90    
91     //define this as a plug-in
92     // this is a base class-we can't do this DEFINE_FWK_MODULE(JetFitAnalyzer);