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CorrelatedData.h

Go to the documentation of this file.

#ifndef CORRELDAT
#define CORRELDAT

#include "CLHEP/Random/JamesRandom.h"
#include "CLHEP/Matrix/Matrix.h"
#include <vector>
#include <utility>

namespace Atlfast
{

class CorrelatedData
{
public:
        CorrelatedData(int);
        ~CorrelatedData() {delete m_randomEngine;}
        vector<double> generate(const HepMatrix& matrix) const;
        double generate(double) const;
        HepMatrix root(const HepMatrix& matrix)const;


private:
        pair<double,double> m_ellipse;
        pair<double,double> m_stFactors;
        pair<double,double> m_abFactors;
        HepRandomEngine*    m_randomEngine;

        vector<double> normal(int nDev)const;
        bool makeDeviate(pair<double,double> randoms, 
                                 double& deviate)const;

};

}//end of namespace

#endif

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