STK_KernelParameters.h

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/*--------------------------------------------------------------------*/
/*     Copyright (C) 2004-2017  Serge Iovleff, Université Lille 1, Inria
 
    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU Lesser General Public License as
    published by the Free Software Foundation; either version 2 of the
    License, or (at your option) any later version.
 
    This program 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 Lesser General Public License for more details.
 
    You should have received a copy of the GNU Lesser General Public
    License along with this program; if not, write to the
    Free Software Foundation, Inc.,
    59 Temple Place,
    Suite 330,
    Boston, MA 02111-1307
    USA
 
    Contact : S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
*/
 
/*
 * Project:  stkpp::Clustering
 * created on: Sep 8, 2017
 * Author:   iovleff, S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
 **/
 
#ifndef STK_KERNELPARAMETERS_H
#define STK_KERNELPARAMETERS_H
 
#include "../STK_Clust_Util.h"
 
#include <Arrays/include/STK_Array1D.h>
#include <Arrays/include/STK_CArrayPoint.h>
 
#include <STatistiK/include/STK_Stat_Online.h>
 
namespace STK
{
template<>
struct ModelParameters<Clust::Kmm_s_>
{
    Real sigma2_;
    CPointX dim_;
 
    Stat::Online<Real, Real> stat_sigma2_;
    Array1D< Stat::Online<Real, Real> > stat_dim_;
 
    ModelParameters(int nbCluster);
    ModelParameters( ModelParameters const& param);
    ~ModelParameters();
 
    inline Real const& sigma2(int k) const { return sigma2_;}
    inline Real const& dim(int k) const { return dim_[k];}
 
    void updateStatistics();
    void setStatistics();
    void releaseStatistics();
 
    template<class Array>
    inline void setParameters(ExprBase<Array> const& params)
    {
      sigma2_ = 0.;
      for(int k=dim_.begin(); k<dim_.end(); ++k)
      { sigma2_  += params(k, baseIdx)   ;
        dim_[k]  = params(k, baseIdx+1);
      }
      sigma2_ /= dim_.size();
    }
};
 
template<>
struct ModelParameters<Clust::Kmm_sk_>
{
    CPointX sigma2_;
    CPointX dim_;
    Array1D< Stat::Online<Real, Real> > stat_sigma2_;
    Array1D< Stat::Online<Real, Real> > stat_dim_;
 
    ModelParameters(int nbCluster);
    ModelParameters( ModelParameters const& param);
    ~ModelParameters();
 
    inline Real const& sigma2(int k) const { return sigma2_[k];}
    inline Real const& dim(int k) const { return dim_[k];}
 
    void updateStatistics();
    void setStatistics();
    void releaseStatistics();
 
    template<class Array>
    inline void setParameters(ExprBase<Array> const& params)
    {
      for(int k=dim_.begin(); k<dim_.end(); ++k)
      { sigma2_[k] = params(k, baseIdx)   ;
        dim_[k]    = params(k, baseIdx+1);
      }
    }
};
 
} // namespace STK
 
#endif /* STK_KERNELPARAMETERS_H */