STK_CategoricalMixtureManager.h

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/*--------------------------------------------------------------------*/
/*     Copyright (C) 2004-2016  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: 15 mars 2014
 * Author:   iovleff, S..._Dot_I..._At_stkpp_Dot_org (see copyright for ...)
 **/
 
#ifndef STK_CATEGORICALMIXTUREMANAGER_H
#define STK_CATEGORICALMIXTUREMANAGER_H
 
#include "../STK_Clust_Util.h"
#include "../STK_IMixtureManager.h"
#include "STK_CategoricalBridge.h"
 
#define STK_CREATE_MIXTURE(Data, Bridge) \
          Data* p_data = new Data(idData); \
          p_handler()->getData(idData, p_data->dataij()); \
          registerDataBridge(p_data); \
          return new Bridge( &(p_data->dataij()), idData, nbCluster);
 
namespace STK
{
// forward declaration
template<class DataHandler> class CategoricalMixtureManager;
 
namespace hidden
{
template <class DataHandler_>
struct MixtureManagerTraits<CategoricalMixtureManager<DataHandler_> >
{
  typedef DataHandler_ DataHandler;
  typedef Integer Type;
  typedef std::vector< std::pair<int,int> > MissingIndexes;
  typedef std::vector< std::pair<std::pair<int,int>, Type > > MissingValues;
 
  // All data handlers will store and return a specific container for
  // the data they handle. The DataHandlerTraits class allow us to know the
  // type of these containers when data is of type Type.
  typedef typename DataHandlerTraits<DataHandler, Type>::Data Data;
  // Classes wrapping the Real and Integer containers
  typedef DataBridge<Data>  DataBridgeType;
};
 
}
template<class DataHandler>
class CategoricalMixtureManager: public IMixtureManager< CategoricalMixtureManager<DataHandler> >
{
  public:
    typedef typename hidden::MixtureManagerTraits< CategoricalMixtureManager >::Type Type;
    typedef typename hidden::MixtureManagerTraits< CategoricalMixtureManager >::MissingIndexes MissingIndexes;
    typedef typename hidden::MixtureManagerTraits< CategoricalMixtureManager >::MissingValues MissingValues;
    typedef typename hidden::MixtureManagerTraits< CategoricalMixtureManager >::Data Data;
    typedef typename hidden::MixtureManagerTraits< CategoricalMixtureManager >::DataBridgeType DataBridgeType;
 
    typedef IMixtureManager<CategoricalMixtureManager> Base;
    using Base::registerDataBridge;
    using Base::getDataBridge;
    using Base::getIdModel;
    using Base::p_handler;
 
    // Define Categorical bridges
    typedef CategoricalBridge<Clust::Categorical_pjk_, Data> MixtureBridge_pjk;
    typedef CategoricalBridge<Clust::Categorical_pk_,  Data> MixtureBridge_pk;
 
    CategoricalMixtureManager(DataHandler const& handler): Base(&handler) {}
    ~CategoricalMixtureManager() {}
 
    void getMissingValuesImpl(IMixture* p_mixture, MissingValues& missing) const
    {
      Clust::Mixture idModel = getIdModel(p_mixture->idData());
      if (idModel == Clust::unknown_mixture_) return;
      // up-cast... (Yes it's bad....;)...)
      switch (idModel)
      {
        case Clust::Categorical_pjk_:
        { static_cast<MixtureBridge_pjk*>(p_mixture)->getMissingValues(missing);}
        break;
        case Clust::Categorical_pk_:
        { static_cast<MixtureBridge_pk*>(p_mixture)->getMissingValues(missing);}
        break;
        default: // idModel is not implemented
        break;
      }
    }
    void getParametersImpl(IMixture* p_mixture, ArrayXX& param) const
    {
      Clust::Mixture idModel = getIdModel(p_mixture->idData());
      if (idModel == Clust::unknown_mixture_) return;
      // up-cast... (Yes it's bad....;)...)
      switch (idModel)
      {
        case Clust::Categorical_pjk_:
        { static_cast<MixtureBridge_pjk*>(p_mixture)->getParameters(param);}
        break;
        case Clust::Categorical_pk_:
        { static_cast<MixtureBridge_pk*>(p_mixture)->getParameters(param);}
        break;
        default: // idModel is not implemented
        break;
      }
    }
    void setParametersImpl(IMixture* p_mixture, ArrayXX const& param) const
    {
      Clust::Mixture idModel = getIdModel(p_mixture->idData());
      if (idModel == Clust::unknown_mixture_) return;
      // up-cast... (Yes it's bad....;)...)
      switch (idModel)
      {
        case Clust::Categorical_pjk_:
        { static_cast<MixtureBridge_pjk*>(p_mixture)->setParameters(param);}
        break;
        case Clust::Categorical_pk_:
        { static_cast<MixtureBridge_pk*>(p_mixture)->setParameters(param);}
        break;
        default: // idModel is not implemented
        break;
      }
    }
    IMixture* createMixtureImpl(String const&  modelName, String const& idData, int nbCluster)
    {
      Clust::Mixture idModel = Clust::stringToMixture(modelName);
      return createMixtureImpl(idModel, idData, nbCluster);
    }
 
  private:
    IMixture* createMixtureImpl(Clust::Mixture idModel, String const& idData, int nbCluster)
    {
      switch (idModel)
      {
        case Clust::Categorical_pjk_:
          { STK_CREATE_MIXTURE(DataBridgeType, MixtureBridge_pjk)}
          break;
        case Clust::Categorical_pk_:
          { STK_CREATE_MIXTURE(DataBridgeType, MixtureBridge_pk)}
          break;
        default:
          return 0; // 0 if idModel is not implemented
          break;
      }
      return 0; // 0 if idModel is not a STK++ model
    }
};
 
} // namespace STK
 
#undef STK_CREATE_MIXTURE
 
#endif /* STK_CATEGORICALMIXTUREMANAGER_H */