JTestChi2_2D Class Reference

#include <JTestChi2_2D.hh>

Inheritance diagram for JTestChi2_2D:

Public Member Functions
	JTestChi2_2D ()
std::istream &	read (std::istream &in)
std::ostream &	write (std::ostream &out)
void	test (TObject *o1, TObject *o2)
virtual void	save (TFile *f, string path)
void	clear ()
JTestResult	JChi2Test (TH1 *h1, TH1 *h2, double threshold)
JTestResult	JChi2TestBin_2D (TH2 *h1, TH2 *h2, double outliersThreshold, double chi2Threshold)

Public Attributes
vector< JTestResult >	results

Private Attributes
double	threshold
	threshold p-value to decide if test is passed. More...
char	slice
	Axis to slice. More...

Detailed Description

Definition at line 17 of file JTestChi2_2D.hh.

Constructor & Destructor Documentation

JTestChi2_2D::JTestChi2_2D ( )

inline

Definition at line 26 of file JTestChi2_2D.hh.

{}

Member Function Documentation

std::istream& JTestChi2_2D::read ( std::istream &  in )

inlinevirtual

Implements JTest_t.

Definition at line 34 of file JTestChi2_2D.hh.

                                   { 
    return in >> threshold >> slice;
  };

std::ostream& JTestChi2_2D::write ( std::ostream &  out )

inlinevirtual

Implements JTest_t.

Definition at line 44 of file JTestChi2_2D.hh.

                                     {
    for (vector<JTestResult>::const_iterator r = results.begin() ; r != results.end() ; ++r) {
      out << scientific << setprecision(2) << (r->passed ? GREEN : RED) << r->message << endl;
    }
    return out;
  };

void JTestChi2_2D::test ( TObject *  o1, TObject *  o2  )

inlinevirtual

Implements JTest_t.

Definition at line 57 of file JTestChi2_2D.hh.

                                      {    
    
    if (!(dynamic_cast<TH2*>(o1) == NULL) && !(dynamic_cast<TH2*>(o2) == NULL)) {
                  
      TH2D* h1 = dynamic_cast<TH2D*>(o1);
      TH2D* h2 = dynamic_cast<TH2D*>(o2);
      
      if(slice == 'x' || slice == 'X'){
            
        int nSlices1 = h1->GetNbinsX();
        int nSlices2 = h2->GetNbinsX();

        if(nSlices1 != nSlices2)
          ERROR("Histograms with different binning. The objects: " << o1->GetName() << " can not be compared." << endl);

        for (int i=1 ; i<=nSlices1 ; ++i){

          string name = MAKE_STRING(o1->GetName() + to_string("_") + to_string(i));
             
          TH1D* s1 = h1->ProjectionY (name.c_str(),i,i);
          TH1D* s2 = h2->ProjectionY (name.c_str(),i,i);
          
          JTestResult r = JChi2Test(s1, s2, threshold);
          cout << "name test " << r.obj->GetName() << endl;
          results.push_back(r);
        }       
      }else if (slice == 'y' || slice == 'Y'){
           
        int nSlices1 = h1->GetNbinsY();
        int nSlices2 = h2->GetNbinsY();

        if(nSlices1 != nSlices2)
          ERROR("Histograms with different binning. The objects: " << o1->GetName() << " can not be compared." << endl);

        for (int i=1 ; i<=nSlices1 ; ++i){
             
          string name = MAKE_STRING(o1->GetName() + to_string("_") + to_string(i));

          TH1D* s1 = h1->ProjectionX (name.c_str(),i,i);
          TH1D* s2 = h2->ProjectionX (name.c_str(),i,i);
          
          JTestResult r = JChi2Test(s1, s2, threshold);
          results.push_back(r);
        }
      }

    } else if (!(dynamic_cast<TH1*>(o1) == NULL) && !(dynamic_cast<TH1*>(o2) == NULL)) {
      ERROR("For 1D histograms call JChi2_1D: " << o1->GetName() << endl);
    }
  };

virtual void JTestChi2_2D::save ( TFile *  f, string  path  )

inlinevirtual

Implements JTest_t.

Definition at line 113 of file JTestChi2_2D.hh.

                                           {
    
    for (vector<JTestResult>::const_iterator r = results.begin() ; r != results.end() ; ++r){
            
      if (f -> GetDirectory(path.c_str())==0) f->mkdir(path.c_str());
      f->cd(path.c_str());
      r->obj->Write();
    }
  }

void JTestChi2_2D::clear ( )

inlinevirtual

Implements JTest_t.

Definition at line 126 of file JTestChi2_2D.hh.

              {
    results.clear();
  }

JTestResult JTestChi2_t::JChi2Test ( TH1 *  h1, TH1 *  h2, double  threshold  )

inlineinherited

Definition at line 33 of file JTestChi2_t.hh.

                                                            {    
    
    JTestResult r;
    
    if(h1 -> GetNbinsX() != h2 -> GetNbinsX())
      ERROR("Histograms with different bining. The objects: " << h1 -> GetName() << " can not be compared." << endl);
        
    double chi2   = h1 -> Chi2Test (h2 , "WW");

    double M = h1->Integral();
    double N = h2->Integral();

    TH2D* h3 = (TH2D*)h1->Clone(h1->GetName()==h2->GetName() ?
                                MAKE_CSTRING(to_string(h1->GetName())) :
                                MAKE_CSTRING(to_string(h1->GetName()) + "_VS_" + to_string(h2->GetName())));
    
    h3->Reset();
    
    for (int i=1 ; i < h1->GetNbinsX() ; ++i){
    
      double m = h1->GetBinContent(i);
      double n = h2->GetBinContent(i);
      if(n!=0 && m!=0){

        double c = (M*n - N*m)/sqrt((n+m)*(N*M));       
        h3->SetBinContent(i,c);
      }
    }
      
    (chi2 < threshold ? r.passed = false : r.passed = true);

    r.message = MAKE_STRING(scientific << setprecision(2)<< "Test: " << "Chi2" <<
                            " HA: " << h1->GetUniqueID() << " " << h1->GetName() <<
                            " HB: " << h2->GetUniqueID() << " " << h2->GetName() <<
                            " Threshold: " << threshold << " Result: " << chi2 << " " << (r.passed ? "PASSED" : "FAILED"));


    JResultTitle title("Chi2_2D", "Deviation[#sigma] ", r.passed , chi2);
    
    h3->SetTitle(title.getTitle().c_str());
        
    r.obj = h3;

    return r;
  };

JTestResult JTestChi2_t::JChi2TestBin_2D ( TH2 *  h1, TH2 *  h2, double  outliersThreshold, double  chi2Threshold  )

inlineinherited

Definition at line 89 of file JTestChi2_t.hh.

                                                                                                {    
      
    int nx1 = h1->GetNbinsX();
    int nx2 = h2->GetNbinsX();      
    int ny1 = h1->GetNbinsY();
    int ny2 = h2->GetNbinsY();
      
    double M = h1->Integral();
    double N = h2->Integral();

    if(nx1 != nx2 || ny1 != ny2 || M == 0 || N == 0)
      ERROR("Histograms with different binning. The objects: " << h1->GetName() << " can not be compared." << endl);
    
    TH2D* h3 = (TH2D*)h1->Clone(h1->GetName()==h2->GetName() ?
                                MAKE_CSTRING(to_string(h1->GetName())) :
                                MAKE_CSTRING(to_string(h1->GetName()) + "_VS_" + to_string(h2->GetName())));

    h3->Reset();

    JTestResult r;

    double outliers = 0;
    
    for (int i=1 ; i<nx1 ; ++i){
      for (int j=1 ; j<ny1 ; ++j){

        double m = h1 -> GetBinContent(i,j);
        double n = h2 -> GetBinContent(i,j);
        double chi2 = (n-m*N/M)/sqrt(m*N/M);
        (fabs(chi2) > chi2Threshold ? outliers+=1./(nx1*ny1) : outliers+=0 );
        h3->SetBinContent(i,j,chi2);
      }
    }
      
    (outliers > outliersThreshold ? r.passed = false : r.passed = true);
    
    r.message = MAKE_STRING(scientific << setprecision(2)<< "Test: " << "Chi2_bin" <<
                            " HA: " << h1->GetUniqueID() << " " << h1->GetName() <<
                            " HB: " << h2->GetUniqueID() << " " << h2->GetName() <<
                            " Threshold: " << outliersThreshold << " Result: " << outliers << " " << (r.passed ? "PASSED" : "FAILED"));

    JResultTitle title("Chi2_bin", "Outliers[%] ", r.passed , 100*outliers);
    
    h3->SetTitle(title.getTitle().c_str());
        
    r.obj = h3;

    return r;      
  };

Member Data Documentation

double JTestChi2_2D::threshold

private

threshold p-value to decide if test is passed.

Definition at line 131 of file JTestChi2_2D.hh.

char JTestChi2_2D::slice

private

Axis to slice.

Definition at line 132 of file JTestChi2_2D.hh.

vector<JTestResult> JTest_t::results

inherited

Definition at line 77 of file JTest_t.hh.

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

• JTestChi2_2D.hh