#include <memory>
#include "FWCore/Framework/interface/EDAnalyzer.h"
#include "FWCore/Framework/interface/Event.h"
#include "FWCore/Framework/interface/MakerMacros.h"
#include "DQMServices/Core/interface/DQMStore.h"
#include "DQMServices/Core/interface/MonitorElement.h"
#include "DataFormats/TrackerRecHit2D/interface/SiPixelRecHitCollection.h"
#include "DataFormats/VertexReco/interface/VertexFwd.h"
#include "DataFormats/VertexReco/interface/Vertex.h"
#include <TF3.h>
#include <iostream>
#include <fstream>
#include <vector>

Classes
struct	VertexType

class	Vx3DHLTAnalyzer

Macros
#define	DIM 3

Functions
double	Gauss3DFunc (const double *par)

Variables
bool	considerVxCovariance

unsigned int	counterVx

double	maxLongLength

double	maxTransRadius

double	pi

vector< VertexType >	Vertices

double	VxErrCorr

double	xPos

double	yPos

double	zPos

Macro Definition Documentation

#define DIM 3

Definition at line 53 of file Vx3DHLTAnalyzer.h.

Referenced by Vx3DHLTAnalyzer::analyze(), Gauss3DFunc(), muonisolation::IsolatorByNominalEfficiency::ConeSizes::index(), and muonisolation::IsolatorByNominalEfficiency::ConeSizes::size().

Function Documentation

double Gauss3DFunc ( const double * par )

Definition at line 168 of file Vx3DHLTAnalyzer.cc.

References considerVxCovariance, counterVx, DIM, i, fff_deleter::log, maxLongLength, maxTransRadius, pi, mathSSE::sqrt(), Vertices, VxErrCorr, x, xPos, detailsBasic3DVector::y, yPos, detailsBasic3DVector::z, and zPos.

Referenced by Vx3DHLTAnalyzer::MyFit().

 {
   double K[DIM][DIM]; // Covariance Matrix
   double M[DIM][DIM]; // K^-1
   double det;
   double sumlog = 0.;
 
 //  par[0] = K(0,0) --> Var[X]
 //  par[1] = K(1,1) --> Var[Y]
 //  par[2] = K(2,2) --> Var[Z]
 //  par[3] = K(0,1) = K(1,0) --> Cov[X,Y]
 //  par[4] = K(1,2) = K(2,1) --> Cov[Y,Z] --> dy/dz
 //  par[5] = K(0,2) = K(2,0) --> Cov[X,Z] --> dx/dz
 //  par[6] = mean x
 //  par[7] = mean y
 //  par[8] = mean z
 
   counterVx = 0;
   for (unsigned int i = 0; i < Vertices.size(); i++)
     {
       if ((std::sqrt((Vertices[i].x-xPos)*(Vertices[i].x-xPos) + (Vertices[i].y-yPos)*(Vertices[i].y-yPos)) <= maxTransRadius) &&
       (std::fabs(Vertices[i].z-zPos) <= maxLongLength))
     {
       if (considerVxCovariance == true)
         {
           K[0][0] = std::fabs(par[0]) + VxErrCorr*VxErrCorr * std::fabs(Vertices[i].Covariance[0][0]);
           K[1][1] = std::fabs(par[1]) + VxErrCorr*VxErrCorr * std::fabs(Vertices[i].Covariance[1][1]);
           K[2][2] = std::fabs(par[2]) + VxErrCorr*VxErrCorr * std::fabs(Vertices[i].Covariance[2][2]);
           K[0][1] = K[1][0] = par[3] + VxErrCorr*VxErrCorr * Vertices[i].Covariance[0][1];
           K[1][2] = K[2][1] = par[4]*(std::fabs(par[2])-std::fabs(par[1])) - par[5]*par[3] + VxErrCorr*VxErrCorr * Vertices[i].Covariance[1][2];
           K[0][2] = K[2][0] = par[5]*(std::fabs(par[2])-std::fabs(par[0])) - par[4]*par[3] + VxErrCorr*VxErrCorr * Vertices[i].Covariance[0][2];
         }
       else
         {
           K[0][0] = std::fabs(par[0]);
           K[1][1] = std::fabs(par[1]);
           K[2][2] = std::fabs(par[2]);
           K[0][1] = K[1][0] = par[3];
           K[1][2] = K[2][1] = par[4]*(std::fabs(par[2])-std::fabs(par[1])) - par[5]*par[3];
           K[0][2] = K[2][0] = par[5]*(std::fabs(par[2])-std::fabs(par[0])) - par[4]*par[3];
         }
 
       det = K[0][0]*(K[1][1]*K[2][2] - K[1][2]*K[1][2]) -
         K[0][1]*(K[0][1]*K[2][2] - K[0][2]*K[1][2]) +
         K[0][2]*(K[0][1]*K[1][2] - K[0][2]*K[1][1]);
 
       M[0][0] = (K[1][1]*K[2][2] - K[1][2]*K[1][2]) / det;
       M[1][1] = (K[0][0]*K[2][2] - K[0][2]*K[0][2]) / det;
       M[2][2] = (K[0][0]*K[1][1] - K[0][1]*K[0][1]) / det;
       M[0][1] = M[1][0] = (K[0][2]*K[1][2] - K[0][1]*K[2][2]) / det;
       M[1][2] = M[2][1] = (K[0][2]*K[0][1] - K[1][2]*K[0][0]) / det;
       M[0][2] = M[2][0] = (K[0][1]*K[1][2] - K[0][2]*K[1][1]) / det;
       
       sumlog += double(DIM)*std::log(2.*pi) + std::log(std::fabs(det)) +
         (M[0][0]*(Vertices[i].x-par[6])*(Vertices[i].x-par[6]) +
          M[1][1]*(Vertices[i].y-par[7])*(Vertices[i].y-par[7]) +
          M[2][2]*(Vertices[i].z-par[8])*(Vertices[i].z-par[8]) +
          2.*M[0][1]*(Vertices[i].x-par[6])*(Vertices[i].y-par[7]) +
          2.*M[1][2]*(Vertices[i].y-par[7])*(Vertices[i].z-par[8]) +
          2.*M[0][2]*(Vertices[i].x-par[6])*(Vertices[i].z-par[8]));
       
       counterVx++;
     }
     }
 
   return sumlog;
 }