Fitter.h

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/* -*- mode: c++ -*- */

#ifndef _Fitter_H_
#define _Fitter_H_

#include "pattern/libhippo.h"

#include <string>
#include <vector>

class StatedFCN;
class TupleCut;

class MDL_HIPPOPLOT_API Fitter
{

private:

  unsigned int getParameterIndex ( const std::string & name );

protected:

  Fitter ( const Fitter & );

  std::string m_name;

  Fitter ( const char * name );

  StatedFCN * m_fcn;

  int m_max_iterations;

 public:

  virtual ~Fitter();

  virtual Fitter * clone () const = 0;

  const std::string & name () const;

  virtual bool needsDerivatives () const = 0;

  void setFCN ( StatedFCN * fcn );

  StatedFCN * getFCN ( );

  void fillFreeParameters ( std::vector < double > & ) const;

  virtual void setFixedFlags ( const std::vector < int > & flags );

  virtual const std::vector < int > & getFixedFlags () const;

  virtual void setLimits ( unsigned int i, double lower, double upper );

  void setLimits ( const std::string & name,
                   double lower,
                   double upper );

  virtual bool calcBestFit () = 0;

  virtual void setStepSize ( unsigned int i, double size );

  void setStepSize ( const std::string & name, double size );

  virtual double objectiveValue() const;

  virtual int calcDegreesOfFreedom () const;

  virtual 
  int calcCovariance ( std::vector < std::vector < double > > & cov );

  virtual void setFitCut ( TupleCut * cut );

  virtual void setFitRange ( bool yes = true );

};

#endif // _Fitter_H_

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