Linear.h

#ifndef _theplu_yat_regression_linear_
#define _theplu_yat_regression_linear_

// $Id: Linear.h 2202 2010-02-21 18:39:13Z peter $

/*
  Copyright (C) 2004, 2005, 2006, 2007, 2008 Jari Häkkinen, Peter Johansson
  Copyright (C) 2010 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 "OneDimensional.h"

#include <cmath>

namespace theplu {
namespace yat {
  namespace utility {
    class VectorBase;
  }
namespace regression {

  class Linear : public OneDimensional 
  {
  
  public:
    Linear(void);

    virtual ~Linear(void);
         
    double alpha(void) const;

    double alpha_var(void) const;

    double beta(void) const;

    double beta_var(void) const;

    void fit(const utility::VectorBase& x, const utility::VectorBase& y) ;
    
    double predict(const double x) const;

    double s2(void) const;

    double standard_error2(const double x) const;


  private:
    Linear(const Linear&);

    double alpha_;
    double alpha_var_;
    double beta_;
    double beta_var_;
  };

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

#endif