Applies Chi2 test for two ROOT TH2 histograms.
52 {
55
56 const TH2* h1 = dynamic_cast<const TH2*>(o1);
57 const TH2* h2 = dynamic_cast<const TH2*>(o2);
58
59 if (h1 == NULL || h2 == NULL) {
61 }
62
63 TH1* h3 = NULL;
64
65 const char* const h3name = (h1->GetName() == h2->GetName() ?
68
69 int nFailures = 0;
70 int nSlices = 0;
71
73
74 const int nSlices1 = h1->GetNbinsX();
75 const int nSlices2 = h2->GetNbinsX();
76
77 if (nSlices1 != nSlices2) {
78 THROW(
JValueOutOfRange,
"JTestChi2_Slice2D::test(): Histograms with different binning. The objects: " << h1->GetName() <<
" and " << h2->GetName() <<
" can not be compared." << endl);
79 }
80
81 nSlices = nSlices1;
82
83 h3 = h1->ProjectionX(h3name);
84
85 for (int i=1 ; i<=nSlices1 ; ++i){
86
88
89 const TH1* s1 = h1->ProjectionY(sliceName.c_str(),i,i);
90 const TH1* s2 = h2->ProjectionY(sliceName.c_str(),i,i);
91
92 if (!(s1->GetSumOfWeights() > 0 && s2->GetSumOfWeights() > 0)) { continue; }
93
94 const double chi2 = s1->Chi2Test(s2 ,
options.c_str());
95
96 const bool failed = (
options.find(
"CHI2") != std::string::npos ?
99
100 if (failed) nFailures++;
101
102 h3->SetBinContent(i,chi2);
103 }
104
106
107 const int nSlices1 = h1->GetNbinsY();
108 const int nSlices2 = h2->GetNbinsY();
109
110 if (nSlices1 != nSlices2) {
111 THROW(
JValueOutOfRange,
"JTestChi2_Slice2D::test(): Histograms with different binning. The objects: " << h1->GetName() <<
" and " << h2->GetName() <<
" can not be compared." << endl);
112 }
113
114 nSlices = nSlices1;
115
116 h3 = h1->ProjectionY(h3name);
117
118 for (int i=1 ; i<=nSlices1 ; ++i){
119
121
122 const TH1* s1 = h1->ProjectionX(sliceName.c_str(),i,i);
123 const TH1* s2 = h2->ProjectionX(sliceName.c_str(),i,i);
124
125 if (!(s1->GetSumOfWeights() > 0 && s2->GetSumOfWeights() > 0)) { continue; }
126
127 const double chi2 = s1->Chi2Test (s2 ,
options.c_str());
128
129 const bool failed = (
options.find(
"CHI2") != std::string::npos ?
132
133 if (failed) nFailures++;
134
135 h3->SetBinContent(i,chi2);
136 }
137 }
138
140
142
143 h3->SetTitle(title.getTitle().c_str());
145
150
151 this->push_back(r);
152 }
#define THROW(JException_t, A)
Marco for throwing exception with std::ostream compatible message.
#define MAKE_CSTRING(A)
Make C-string.
#define MAKE_STRING(A)
Make string.
Class dedicated to standardize the title of the graphical objects produced by the JTest_t() derived c...
double threshold
threshold p-value to decide if test is passed.
std::string options
options for the ROOT chi2 test.
double failuresThreshold
threshold p-value to decide if test is passed.
const std::string resultType
test result type
const std::string testName
test name
Auxiliary class to handle file name, ROOT directory and object name.
Exception for accessing a value in a collection that is outside of its range.
std::string to_string(const T &value)
Convert value to string.
This name space includes all other name spaces (except KM3NETDAQ, KM3NET and ANTARES).
Structure containing the result of the test.