OneDimensionalWeighted.h

#ifndef _theplu_yat_regression_onedimensioanlweighted_
#define _theplu_yat_regression_onedimensioanlweighted_

// $Id: OneDimensionalWeighted.h 2119 2009-12-12 23:11:43Z peter $

/*
  Copyright (C) 2005 Peter Johansson
  Copyright (C) 2006, 2007, 2008 Jari Häkkinen, Peter Johansson

  This file is part of the yat library, http://dev.thep.lu.se/yat

  The yat library is free software; you can redistribute it and/or
  modify it under the terms of the GNU General Public License as
  published by the Free Software Foundation; either version 3 of the
  License, or (at your option) any later version.

  The yat library is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  General Public License for more details.

  You should have received a copy of the GNU General Public License
  along with yat. If not, see <http://www.gnu.org/licenses/>.
*/

#include "yat/statistics/AveragerPairWeighted.h"

#include <ostream>

namespace theplu {
namespace yat {
namespace utility {
  class VectorBase;
}
namespace regression {
  
  class OneDimensionalWeighted 
  {
  
  public:
    OneDimensionalWeighted(void);

    virtual ~OneDimensionalWeighted(void);
         
    virtual void fit(const utility::VectorBase& x, const utility::VectorBase& y, 
                     const utility::VectorBase& w)=0;

    virtual double predict(const double x) const=0;

    double prediction_error2(const double x, const double w=1.0) const; 

    double r2(void) const; 

    virtual double s2(double w=1) const=0;

    virtual double standard_error2(const double x) const=0;

  protected:
    statistics::AveragerPairWeighted ap_;

    double chisq_;

  private:
  };

}}} // of namespaces regression, yat, and theplu

#endif