WWFitterFast.h

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// Class WWFitterFast
//
// Author: Jenny Boehme
// Last update: $Date: 2005/01/12 10:11:46 $
//          by: $Author: blist $
// 
// Description: kinematic fit a la WWFGO
//               

#ifndef __WWFITTERFAST_H
#define __WWFITTERFAST_H

#include<vector>
#include"jbltools/kinfit/BaseFitter.h"

class BaseFitObject;
class BaseConstraint;

class WWFitterFast : public BaseFitter {
  public:
    WWFitterFast();
    virtual ~WWFitterFast();
    virtual double fit();
    virtual int getError() const;
    virtual double getProbability() const;
    virtual double getChi2() const;
    virtual int  getIterations() const;
  
  protected:
    virtual bool initialize();
    virtual bool updateFitObjects (double eta[]);
    enum {NPARMAX=50, NCONMAX=10, NUNMMAX=10};
    
    int npar;      // total number of parameters
    int nmea;      // total number of measured parameters
    int nunm;      // total number of unmeasured parameters
    int ncon;      // total number of constraints
    int ierr;      // Error status
    int nit;       // Number of iterations

    double fitprob;   // fit probability
    double chi2;      // final chi2
};

#endif // __WWFITTERFAST_H

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