Algorithm for APV latency scan. More...

#include <ApvLatencyAlgorithm.h>

Inheritance diagram for ApvLatencyAlgorithm:

Public Member Functions
	ApvLatencyAlgorithm (const edm::ParameterSet &pset, ApvLatencyAnalysis *const )

const Histo &	histo () const

virtual	~ApvLatencyAlgorithm ()

Public Member Functions inherited from CommissioningAlgorithm
void	analysis (const std::vector< TH1 * > &)

	CommissioningAlgorithm (CommissioningAnalysis *const )

	CommissioningAlgorithm ()

virtual	~CommissioningAlgorithm ()

Private Member Functions
void	analyse ()

	ApvLatencyAlgorithm ()

void	extract (const std::vector< TH1 * > &)

Private Attributes
Histo	histo_

Additional Inherited Members
Public Types inherited from CommissioningAlgorithm
typedef std::pair< TH1 *, std::string >	Histo

Protected Member Functions inherited from CommissioningAlgorithm
CommissioningAnalysis *const	anal () const

uint32_t	extractFedKey (const TH1 *const )

Detailed Description

Algorithm for APV latency scan.

Author: M. Wingham, R.Bainbridge

Definition at line 16 of file ApvLatencyAlgorithm.h.

Constructor & Destructor Documentation

ApvLatencyAlgorithm::ApvLatencyAlgorithm	(	const edm::ParameterSet &	pset,
		ApvLatencyAnalysis * const	anal
	)

Definition at line 14 of file ApvLatencyAlgorithm.cc.

   : CommissioningAlgorithm(anal),
     histo_(0,"")
 {;}

virtual ApvLatencyAlgorithm::~ApvLatencyAlgorithm ( )

inlinevirtual

Definition at line 22 of file ApvLatencyAlgorithm.h.

22 {;}

ApvLatencyAlgorithm::ApvLatencyAlgorithm ( )

inlineprivate

Definition at line 28 of file ApvLatencyAlgorithm.h.

28 {;}

Member Function Documentation

void ApvLatencyAlgorithm::analyse ( )

privatevirtual

Performs histogram anaylsis.

Implements CommissioningAlgorithm.

Definition at line 62 of file ApvLatencyAlgorithm.cc.

References CommissioningAnalysis::addErrorCode(), CommissioningAlgorithm::anal(), prof2calltree::count, histo(), histo_, mergeVDriftHistosByStation::histos, gen::k, ApvLatencyAnalysis::latency_, sistrip::mlCommissioning_, sistrip::nullPtr_, python.multivaluedict::sort(), mathSSE::sqrt(), and tmp.

                                   { 
 
   if ( !anal() ) {
     edm::LogWarning(mlCommissioning_)
       << "[ApvLatencyAlgorithm::" << __func__ << "]"
       << " NULL pointer to base Analysis object!";
     return; 
   }
 
   CommissioningAnalysis* tmp = const_cast<CommissioningAnalysis*>( anal() );
   ApvLatencyAnalysis* anal = dynamic_cast<ApvLatencyAnalysis*>( tmp );
   if ( !anal ) {
     edm::LogWarning(mlCommissioning_)
       << "[ApvLatencyAlgorithm::" << __func__ << "]"
       << " NULL pointer to derived Analysis object!";
     return; 
   }
 
   // was in deprecated()
 
   std::vector<const TProfile*> histos; 
   std::vector<unsigned short> monitorables;
 
   // was in analysis()
   
   histos.clear();
   histos.push_back( const_cast<const TProfile*>( dynamic_cast<TProfile*>(histo_.first) ) );
   if ( !histos[0] ) {
     anal->addErrorCode(sistrip::nullPtr_);
     return;
   }
   
   monitorables.clear();
 
   //LogDebug("Commissioning|Algorithm") << "[ApvLatencyAlgorithm::analysis]";
   
   //extract root histogram
   //check 
   if (histos.size() != 1) { 
     //     edm::LogWarning("Commissioning|Algorithm") << "[ApvLatencyAlgorithm::analysis]: Requires \"const std::vector<const TH1F*>& \" argument to have size 1. Actual size: " << histos.size() << ". Monitorables set to 0."; 
     monitorables.push_back(0);
     return; 
   }
   const TProfile* histo = histos[0];
 
   //monitorable
   unsigned short latency;
 
   std::vector<unsigned short> binContent; binContent.reserve((unsigned short)histo->GetNbinsX()); binContent.resize((unsigned short)histo->GetNbinsX(), 0);
 
   for (unsigned short k = 0; k < (unsigned short)histo->GetNbinsX(); k++) { // k is bin number
 
     //fill std::vector with histogram contents
     binContent.push_back((unsigned int)(histo->GetBinContent(k)));}
 
   //calculate median
   
   sort(binContent.begin(), binContent.end());
  
   //calculate mean and mean2 of the readout within cutoffs
  
   float meanNoise = 0.;//M.W method
   float mean2Noise = 0.;
  
   for (unsigned short k = (unsigned short)(binContent.size()*.1); k < (unsigned short)(binContent.size()*.9); k++) {
     meanNoise += binContent[k];
     mean2Noise += binContent[k]*binContent[k];;
   }
  
   meanNoise = meanNoise * binContent.size() * 0.8;
   mean2Noise = mean2Noise * binContent.size() * 0.8;
   float sigmaNoise = sqrt(fabs(meanNoise*meanNoise - mean2Noise));
  
   //loop to look for signal > 5* sigma_noise
   unsigned short count = 0;
   unsigned short maxlatency = 0;
   unsigned int maxhits = 0;
  
   for (unsigned short k = 1; k < ((unsigned short)histo->GetNbinsX() + 1); k++) { // k is bin number
     if (histo->GetBinContent((Int_t)k) > maxhits) maxlatency = k - 1;
     if ((float)histo->GetBinContent((Int_t)k) > (meanNoise + 5 * sigmaNoise)) { 
       latency = k - 1; count++;
     }
   }
  
   if (!count) {
     //   LogDebug("Commissioning|Algorithm") << "[ApvLatencyAlgorithm::analysis]: Warning: no signal found > mean + 5*sigma(noise). Returning latency of highest number of recorded hits.";
     latency = maxlatency;
   }
  
   if (count > 1) {
     //    LogDebug("Commissioning|Algorithm") << "[ApvLatencyAlgorithm::analysis]: Warning: more than one signal found > mean + 5*sigma(noise). Returning latency of highest number of recorded hits.";
     latency = maxlatency;
   }
 
   //set monitorables
   monitorables.clear();
   monitorables.push_back(latency);
 
   anal->latency_ = monitorables[0];
   
 }

void ApvLatencyAlgorithm::extract ( const std::vector< TH1 * > & )

privatevirtual

Extracts and organises histograms.

Implements CommissioningAlgorithm.

Definition at line 21 of file ApvLatencyAlgorithm.cc.

References CommissioningAnalysis::addErrorCode(), CommissioningAlgorithm::anal(), sistrip::APV_LATENCY, CommissioningAlgorithm::extractFedKey(), CommissioningAnalysis::fedKey(), histo_, sistrip::mlCommissioning_, sistrip::numberOfHistos_, indexGen::title, and sistrip::unexpectedTask_.

                                                                  { 
 
   if ( !anal() ) {
     edm::LogWarning(mlCommissioning_)
       << "[ApvLatencyAlgorithm::" << __func__ << "]"
       << " NULL pointer to Analysis object!";
     return; 
   }
   
   // Check
   if ( histos.size() != 1 ) {
     anal()->addErrorCode(sistrip::numberOfHistos_);
   }
   
   // Extract FED key from histo title
   if ( !histos.empty() ) { anal()->fedKey( extractFedKey( histos.front() ) ); }
   
   // Extract histograms
   std::vector<TH1*>::const_iterator ihis = histos.begin();
   for ( ; ihis != histos.end(); ihis++ ) {
     
     // Check for NULL pointer
     if ( !(*ihis) ) { continue; }
     
     // Check name
     SiStripHistoTitle title( (*ihis)->GetName() );
     if ( title.runType() != sistrip::APV_LATENCY ) {
       anal()->addErrorCode(sistrip::unexpectedTask_);
       continue;
     }
     
     // Extract timing histo
     histo_.first = *ihis;
     histo_.second = (*ihis)->GetName();
     
   }
  
 }