JCOMPAREHISTOGRAMS::JTestIdentical_t Class Reference

Implementation test that verify if two histograms are the same. More...

#include <JTestIdentical_t.hh>

Inheritance diagram for JCOMPAREHISTOGRAMS::JTestIdentical_t:

Public Member Functions
	JTestIdentical_t ()
	Default constructor. More...
template<class T >
JTestResult	JIdenticalTest (T *h1, T *h2, double tolerance, std::string testName, std::string parameterName)
	Bin-by-Bin test of two histograms, that verifies whether the histograms are the same. More...

Detailed Description

Implementation test that verify if two histograms are the same.

Definition at line 21 of file JTestIdentical_t.hh.

Constructor & Destructor Documentation

JCOMPAREHISTOGRAMS::JTestIdentical_t::JTestIdentical_t ( )

inline

Default constructor.

Definition at line 28 of file JTestIdentical_t.hh.

{}

Member Function Documentation

template<class T >

JTestResult JCOMPAREHISTOGRAMS::JTestIdentical_t::JIdenticalTest ( T *  h1, T *  h2, double  tolerance, std::string  testName, std::string  parameterName  )

inline

Bin-by-Bin test of two histograms, that verifies whether the histograms are the same.

For each bin, the test calculates the difference, and compares it with a tolerance passed as an argument.
The test is passed if the difference is smaller than the tolerance for every bin.
The template parameter can be TH1X, TH2X or TH3X.

Parameters

h1	First object
h2	Second object
tolerance	tolerance value for the bin-by-bin differences
parameterName	Name of the parameter used to test the histograms
testName	Name of the test used to compare the histograms

Returns

Test result.

Definition at line 45 of file JTestIdentical_t.hh.

                                                                                                            {    
    
      using namespace std;
      using namespace JPP;
        
      if(h1 -> GetNbinsX() != h2 -> GetNbinsX() || h1 -> GetNbinsY() != h2 -> GetNbinsY() || h1 -> GetNbinsZ() != h2 -> GetNbinsZ())
        ERROR("Histograms with different bining. The objects: " << h1 -> GetName() << " can not be compared." << endl);
        
      T* h3 = (T*)h1->Clone(h1->GetName()==h2->GetName() ?
                            MAKE_CSTRING(to_string(h1->GetName())) :
                            MAKE_CSTRING(to_string(h1->GetName()) + "_VS_" + to_string(h2->GetName())));
    
      h3->Add(h2,-1);

      bool passed;
    
      double maxDifference = 0.0;
    
      for (int i=0 ; i < h1->GetNbinsX() ; ++i){
        for (int j=0 ; j< h1->GetNbinsY() ; ++j){
          for (int k=0 ; k< h1->GetNbinsZ() ; ++k){
          
            double d = h1->GetBinContent(i+1,j+1,k+1) - h2->GetBinContent(i+1,j+1,k+1);

            if (fabs(d) > maxDifference)
              maxDifference = fabs(d);
            if (fabs(d) > tolerance)
              passed = false;
          }     
        }
      }

      JResultTitle title(testName, parameterName, passed , maxDifference);
    
      h3->SetTitle(title.getTitle().c_str());
        
      JTestResult r (testName,
                     JRootObjectID(MAKE_STRING(h1->GetDirectory()->GetPath() << h1->GetName())),
                     JRootObjectID(MAKE_STRING(h2->GetDirectory()->GetPath() << h1->GetName())),
                     parameterName, maxDifference, tolerance, h3, passed);

      return r;
    };  

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The documentation for this class was generated from the following file:

• JTestIdentical_t.hh