Comp2RefChi2 Class Reference

#include <QTest.h>

Inheritance diagram for Comp2RefChi2:

Public Member Functions
	Comp2RefChi2 (const std::string &name)
float	runTest (const MonitorElement *me)
Public Member Functions inherited from SimpleTest
virtual std::vector< DQMChannel >	getBadChannels (void) const
	get vector of channels that failed test (not always relevant!) More...
void	setMinimumEntries (unsigned n)
	set minimum # of entries needed More...
	SimpleTest (const std::string &name, bool keepBadChannels=false)
Public Member Functions inherited from QCriterion
std::string	algoName (void) const
	get algorithm name More...
std::string	getMessage (void) const
	get message attached to test More...
std::string	getName (void) const
	get name of quality test More...
int	getStatus (void) const
	(class should be created by DQMStore class) More...
void	setErrorProb (float prob)
void	setWarningProb (float prob)
	set probability limit for warning and error (default: 90% and 50%) More...

Static Public Member Functions
static std::string	getAlgoName (void)

Protected Member Functions
void	setMessage (void)
	set status & message after test has run More...
Protected Member Functions inherited from QCriterion
void	init (void)
	initialize values More...
	QCriterion (std::string qtname)
float	runTest (const MonitorElement *me, QReport &qr, DQMNet::QValue &qv)
void	setAlgoName (std::string name)
	set algorithm name More...
void	setVerbose (int verbose)
	probability limits for warnings, errors More...
virtual	~QCriterion (void)

Protected Attributes
double	chi2_
int	Ndof_
Protected Attributes inherited from SimpleTest
std::vector< DQMChannel >	badChannels_
bool	keepBadChannels_
unsigned	minEntries_
Protected Attributes inherited from QCriterion
std::string	algoName_
	name of quality test More...
float	errorProb_
std::string	message_
	quality test status More...
float	prob_
	name of algorithm More...
std::string	qtname_
int	status_
int	verbose_
float	warningProb_
	message attached to test More...

Detailed Description

Definition at line 183 of file QTest.h.

Constructor & Destructor Documentation

Comp2RefChi2::Comp2RefChi2 ( const std::string &  name )

inline

Definition at line 186 of file QTest.h.

References getAlgoName(), and QCriterion::setAlgoName().

                                      :SimpleTest(name)
  { 
    setAlgoName(getAlgoName()); 
  }

Member Function Documentation

static std::string Comp2RefChi2::getAlgoName ( void  )

inlinestatic

Definition at line 190 of file QTest.h.

Referenced by Comp2RefChi2(), QTestConfigure::EnableComp2RefChi2Test(), QTestConfigure::enableTests(), and QTestParameterNames::QTestParameterNames().

{ return "Comp2RefChi2"; }

float Comp2RefChi2::runTest ( const MonitorElement *  me )

virtual

Reimplemented from QCriterion.

Definition at line 163 of file QTest.cc.

References beam_dqm_sourceclient-live_cfg::chi2, HLT_25ns10e33_v2_cff::constraint, gather_cfg::cout, MonitorElement::DQM_KIND_TH1D, MonitorElement::DQM_KIND_TH1F, MonitorElement::DQM_KIND_TH1S, MonitorElement::DQM_KIND_TPROFILE, MonitorElement::getRefRootObject(), MonitorElement::getRefTH1D(), MonitorElement::getRefTH1F(), MonitorElement::getRefTH1S(), MonitorElement::getRefTProfile(), MonitorElement::getRootObject(), MonitorElement::getTH1D(), MonitorElement::getTH1F(), MonitorElement::getTH1S(), MonitorElement::getTProfile(), h, i, MonitorElement::kind(), ndof, combinedConstraintHelpers::sum2(), and groupFilesInBlocks::temp.

{
  if (!me) 
    return -1;
  if (!me->getRootObject() || !me->getRefRootObject()) 
    return -1;
  TH1* h=0;
  TH1* ref_=0;
 
  if (verbose_>1) 
    std::cout << "QTest:" << getAlgoName() << "::runTest called on " 
              << me-> getFullname() << "\n";
  //-- TH1F
  if (me->kind()==MonitorElement::DQM_KIND_TH1F)
  { 
    h = me->getTH1F(); // access Test histo
    ref_ = me->getRefTH1F(); //access Ref histo
  } 
  //-- TH1S
  else if (me->kind()==MonitorElement::DQM_KIND_TH1S)
  { 
    h = me->getTH1S(); // access Test histo
    ref_ = me->getRefTH1S(); //access Ref histo
  } 
  //-- TH1D
  else if (me->kind()==MonitorElement::DQM_KIND_TH1D)
  { 
    h = me->getTH1D(); // access Test histo
    ref_ = me->getRefTH1D(); //access Ref histo
  } 
  //-- TProfile
  else if (me->kind()==MonitorElement::DQM_KIND_TPROFILE)
  {
    h = me->getTProfile(); // access Test histo
    ref_ = me->getRefTProfile(); //access Ref histo
  } 
  else
  { 
    if (verbose_>0) 
      std::cout << "QTest::Comp2RefChi2"
                << " ME does not contain TH1F/TH1S/TH1D/TProfile, exiting\n"; 
    return -1;
  } 

   //-- isInvalid ? - Check consistency in number of channels
  int ncx1  = h->GetXaxis()->GetNbins(); 
  int ncx2  = ref_->GetXaxis()->GetNbins();
  if ( ncx1 !=  ncx2)
  {
    if (verbose_>0) 
      std::cout << "QTest:Comp2RefChi2"
                << " different number of channels! ("
                << ncx1 << ", " << ncx2 << "), exiting\n";
    return -1;
  } 

  //--  QUALITY TEST itself 
  //reset Results
  Ndof_ = 0; chi2_ = -1.; ncx1 = ncx2 = -1;

  int i, i_start, i_end;
  double chi2 = 0.;  int ndof = 0; int constraint = 0;

  i_start = 1;  
  i_end = ncx1;
  //  if (fXaxis.TestBit(TAxis::kAxisRange)) {
  i_start = h->GetXaxis()->GetFirst();
  i_end   = h->GetXaxis()->GetLast();
  //  }
  ndof = i_end-i_start+1-constraint;

  //Compute the normalisation factor
  double sum1=0, sum2=0;
  for (i=i_start; i<=i_end; i++)
  {
    sum1 += h->GetBinContent(i);
    sum2 += ref_->GetBinContent(i);
  }

  //check that the histograms are not empty
  if (sum1 == 0)
  {
    if (verbose_>0) 
      std::cout << "QTest:Comp2RefChi2"
                << " Test Histogram " << h->GetName() 
        << " is empty, exiting\n";
    return -1;
  }
  if (sum2 == 0)
  {
    if (verbose_>0) 
      std::cout << "QTest:Comp2RefChi2"
                << " Ref Histogram " << ref_->GetName() 
                << " is empty, exiting\n";
    return -1;
  }

  double bin1, bin2, err1, err2, temp;
  for (i=i_start; i<=i_end; i++)
  {
    bin1 = h->GetBinContent(i)/sum1;
    bin2 = ref_->GetBinContent(i)/sum2;
    if (bin1 ==0 && bin2==0)
    {
      --ndof; //no data means one less degree of freedom
    } 
    else 
    {
      temp  = bin1-bin2;
      err1=h->GetBinError(i); err2=ref_->GetBinError(i);
      if (err1 == 0 && err2 == 0)
      {
    if (verbose_>0) 
      std::cout << "QTest:Comp2RefChi2"
                << " bins with non-zero content and zero error, exiting\n";
    return -1;
      }
      err1*=err1      ; err2*=err2;
      err1/=sum1*sum1 ; err2/=sum2*sum2;
      chi2 +=temp*temp/(err1+err2);
    }
  }
  chi2_ = chi2;  Ndof_ = ndof;
  return TMath::Prob(0.5*chi2, int(0.5*ndof));
}

void Comp2RefChi2::setMessage ( void  )

inlineprotectedvirtual

set status & message after test has run

Reimplemented from SimpleTest.

Definition at line 195 of file QTest.h.

References chi2_, QCriterion::errorProb_, python.rootplot.argparse::message, QCriterion::message_, SimpleTest::minEntries_, Ndof_, and QCriterion::warningProb_.

  {
    std::ostringstream message;
    message << "chi2/Ndof = " << chi2_ << "/" << Ndof_
        << ", minimum needed statistics = " << minEntries_
        << " warning threshold = " << this->warningProb_
        << " error threshold = " << this->errorProb_;
    message_ = message.str();
  }

Member Data Documentation

double Comp2RefChi2::chi2_

protected

Definition at line 206 of file QTest.h.

Referenced by setMessage().

int Comp2RefChi2::Ndof_

protected

Definition at line 206 of file QTest.h.

Referenced by setMessage().