ResolutionFunction Class Reference

#include <ResolutionFunction.h>

Inheritance diagram for ResolutionFunction:

Public Member Functions
resolutionFunctionBase< double * > *	function (const unsigned int i)
	Get the ith resolution function. More...
	ResolutionFunction (TString identifier)
	ResolutionFunction (const MuScleFitDBobject *dbObject)
template<class U >
double	sigmaCotgTh (const U &track, const int i=0) const
	The second, optional, parameter is the iteration number. More...
template<class U >
double	sigmaPhi (const U &track, const int i=0) const
	The second, optional, parameter is the iteration number. More...
template<class U >
double	sigmaPt (const U &track, const int i=0) const
	The second, optional, parameter is the iteration number. More...
	~ResolutionFunction ()
Public Member Functions inherited from BaseFunction
	BaseFunction ()
	BaseFunction (const MuScleFitDBobject *dbObject)
	Constructor when receiving database parameters. More...
std::vector< double >	fitQuality () const
	Return the vector of fit quality values. More...
std::vector< int >	identifiers () const
	Return the vector of function identifiers. More...
std::vector< double >	parameters () const
	Return the vector of parameters. More...

Protected Member Functions
void	readParameters (TString fileName)
	Parser of the parameters file. More...
Protected Member Functions inherited from BaseFunction
template<class T >
void	convertToArrays (T **&function_, const std::vector< T * > &functionVec_)
	Convert vectors to arrays for faster random access. The first pointer is replaced, thus it is taken by reference. More...

Protected Attributes
resolutionFunctionBase< double * > **	resolutionFunction_
std::vector < resolutionFunctionBase < double * > * >	resolutionFunctionVec_
Protected Attributes inherited from BaseFunction
std::vector< double >	fitQuality_
double **	fitQualityArray_
std::vector< int >	functionId_
int	iterationNum_
double **	parArray_
std::vector< double >	parVecVec_

Detailed Description

Class for the resolution function. It can be built from local file or from db.

Definition at line 15 of file ResolutionFunction.h.

Constructor & Destructor Documentation

ResolutionFunction::ResolutionFunction ( TString  identifier )

inline

The constructor takes a string identifying the parameters to read. It parses the txt file containing the parameters, extracts the index of the correction function and saves the corresponding pointer. It then fills the vector of parameters.

Definition at line 24 of file ResolutionFunction.h.

References gather_cfg::cout, BaseFunction::functionId_, and readParameters().

  {
    identifier.Prepend("MuonAnalysis/MomentumScaleCalibration/data/");
    identifier.Append(".txt");
    edm::FileInPath fileWithFullPath(identifier.Data());
    readParameters( fileWithFullPath.fullPath() );

    std::vector<int>::const_iterator idIt = functionId_.begin();
    for( ; idIt != functionId_.end(); ++idIt ) std::cout << "idIt = " << *idIt << std::endl;
  }

ResolutionFunction::ResolutionFunction ( const MuScleFitDBobject *  dbObject )

inline

This constructor is used when reading parameters from the db. It receives a pointer to an object of type MuScleFitDBobject containing the parameters and the functions identifiers. The object is the same for all the functions.

Definition at line 40 of file ResolutionFunction.h.

References BaseFunction::convertToArrays(), BaseFunction::functionId_, resolutionFunction_, resolutionFunctionService(), and resolutionFunctionVec_.

                                                           : BaseFunction( dbObject )
  {
    std::vector<int>::const_iterator id = functionId_.begin();
    for( ; id != functionId_.end(); ++id ) {
      resolutionFunctionVec_.push_back( resolutionFunctionService( *id ) );
    }
    // Fill the arrays that will be used when calling the correction function.
    convertToArrays(resolutionFunction_, resolutionFunctionVec_);
  }

ResolutionFunction::~ResolutionFunction ( )

inline

Definition at line 50 of file ResolutionFunction.h.

References BaseFunction::functionId_, i, BaseFunction::parArray_, and resolutionFunction_.

                        {
    if( parArray_ != 0 ) {
      for( unsigned int i=0; i<functionId_.size(); ++i ) {
        delete[] parArray_[i];
        delete resolutionFunction_[i];
      }
      delete[] parArray_;
      delete[] resolutionFunction_;
    }
  }

Member Function Documentation

resolutionFunctionBase<double * >* ResolutionFunction::function ( const unsigned int  i )

inline

Get the ith resolution function.

Definition at line 93 of file ResolutionFunction.h.

References i, resolutionFunction_, and resolutionFunctionVec_.

  {
    if( resolutionFunctionVec_.size() > i ) return resolutionFunction_[i];
    else return 0;
  }

void ResolutionFunction::readParameters ( TString  fileName )

protected

Parser of the parameters file.

Definition at line 3 of file ResolutionFunction.cc.

References BaseFunction::convertToArrays(), BaseFunction::functionId_, recoMuon::in, align_cfg::iteration, BaseFunction::iterationNum_, geometryCSVtoXML::line, pileupDistInMC::num, BaseFunction::parArray_, BaseFunction::parVecVec_, resolutionFunction_, resolutionFunctionService(), resolutionFunctionVec_, and AlCaHLTBitMon_QueryRunRegistry::string.

Referenced by ResolutionFunction().

{
  iterationNum_ = 0;
  parArray_ = 0;
  // std::vector<double> parameterErrors;

  // Read the parameters file
  std::ifstream parametersFile(fileName.Data());
  std::string line;

  std::string iteration("Iteration ");
  // Loop on the file lines
  while (parametersFile) {
    getline( parametersFile, line );
    size_t lineInt = line.find("value");

    // if( line.find(iteration) != std::string::npos ) {
    size_t iterationSubStr = line.find(iteration);

    // Take the iteration number
    if( iterationSubStr != std::string::npos ) {

      int functionNum = 0;
      // This can be used when dealing with multiple iterations

      // std::cout << "line = " << line << std::endl;
      std::stringstream sLine(line);
      std::string num;
      int wordCounter = 0;
      // Warning: this strongly depends on the parameters file structure.
      while( sLine >> num ) {
        ++wordCounter;
        //         std::cout << "num["<<wordCounter<<"] = " << num << std::endl;
        if( wordCounter == 8 ) {
      std::stringstream in(num);
          in >> functionNum;
        }
        if( wordCounter == 13 ) {
      std::stringstream in(num);
          in >> iterationNum_;
        }
      }
      // std::cout << "iteration number = " << iterationNum_ << std::endl;
      // std::cout << "scale function number = " << scaleFunctionNum << std::endl;

      // Create a new vector to hold the parameters for this iteration
//       std::vector<double> parVec;
//       parVecVec_.push_back(parVec);

      // Set the scaleFunction
      // scaleFunction_ = scaleFunctionArrayForVec[scaleFunctionNum];
      // scaleFunction_ = scaleFunctionArray[scaleFunctionNum];
      functionId_.push_back(functionNum);
      // scaleFunctionVec_.push_back( scaleFunctionArray[scaleFunctionNum] );
      resolutionFunctionVec_.push_back( resolutionFunctionService( functionNum ) );
    }
    // Take the parameters for the current iteration
    if ( (lineInt != std::string::npos) ) {
      size_t subStr1 = line.find("value");
      std::stringstream paramStr;
      double param = 0;
      // Even if all the rest of the line is taken, the following
      // convertion to a double will stop at the end of the first number.
      paramStr << line.substr(subStr1+5);
      paramStr >> param;
//       // Fill the last vector of parameters, which corresponds to this iteration.
//       parVecVec_.back().push_back(param);
      parVecVec_.push_back(param);
      // std::cout << "param = " << param << std::endl;

      // This is to extract parameter errors
      // size_t subStr2 = line.find("+-");
      // std::stringstream parErrorStr;
      // double parError = 0;
      // parErrorStr << line.substr(subStr2+1);
      // parErrorStr >> parError;
      // parameterErrors.push_back(parError);
      // std::cout << "parError = " << parError << std::endl;
    }
  }

  convertToArrays( resolutionFunction_, resolutionFunctionVec_ );
}

template<class U >

double ResolutionFunction::sigmaCotgTh ( const U &  track, const int  i = 0  ) const

inline

The second, optional, parameter is the iteration number.

Definition at line 76 of file ResolutionFunction.h.

References gather_cfg::cout, cmsRelvalreport::exit, i, BaseFunction::iterationNum_, BaseFunction::parArray_, resolutionFunction_, and resolutionFunctionBase< T >::sigmaCotgTh().

Referenced by MuScleFitUtils::massResolution().

                                                           {
    if( i > iterationNum_ || i < 0 ) {
      std::cout << "Error: wrong iteration number, there are " << iterationNum_ << "iterations, ther first one is 0" << std::endl;
      exit(1);
    }
    return resolutionFunction_[i]->sigmaCotgTh(track.pt(), track.eta(), parArray_[i]);
  }

template<class U >

double ResolutionFunction::sigmaPhi ( const U &  track, const int  i = 0  ) const

inline

The second, optional, parameter is the iteration number.

Definition at line 85 of file ResolutionFunction.h.

References gather_cfg::cout, cmsRelvalreport::exit, i, BaseFunction::iterationNum_, BaseFunction::parArray_, resolutionFunction_, and resolutionFunctionBase< T >::sigmaPhi().

Referenced by MuScleFitUtils::massResolution().

                                                        {
    if( i > iterationNum_ || i < 0 ) {
      std::cout << "Error: wrong iteration number, there are " << iterationNum_ << "iterations, ther first one is 0" << std::endl;
      exit(1);
    }
    return resolutionFunction_[i]->sigmaPhi(track.pt(), track.eta(), parArray_[i]);
  }

template<class U >

double ResolutionFunction::sigmaPt ( const U &  track, const int  i = 0  ) const

inline

The second, optional, parameter is the iteration number.

Definition at line 67 of file ResolutionFunction.h.

References gather_cfg::cout, cmsRelvalreport::exit, i, BaseFunction::iterationNum_, BaseFunction::parArray_, resolutionFunction_, and resolutionFunctionBase< T >::sigmaPt().

Referenced by MuScleFitUtils::massResolution().

                                                       {
    if( i > iterationNum_ || i < 0 ) {
      std::cout << "Error: wrong iteration number, there are " << iterationNum_ << "iterations, ther first one is 0" << std::endl;
      exit(1);
    }
    return resolutionFunction_[i]->sigmaPt(track.pt(), track.eta(), parArray_[i]);
  }

Member Data Documentation

resolutionFunctionBase<double * >** ResolutionFunction::resolutionFunction_

protected

Definition at line 103 of file ResolutionFunction.h.

Referenced by function(), readParameters(), ResolutionFunction(), sigmaCotgTh(), sigmaPhi(), sigmaPt(), and ~ResolutionFunction().

std::vector<resolutionFunctionBase<double * > * > ResolutionFunction::resolutionFunctionVec_

protected

Definition at line 104 of file ResolutionFunction.h.

Referenced by function(), readParameters(), and ResolutionFunction().