MixtureOfDiscreteDistributions.h

Go to the documentation of this file.

//
// File: MixtureOfDiscreteDistributions.h
// Created by: Laurent Guéguen
// Created on: mercredi 9 juin 2010, à 22h 44
//

/*
   Copyright or © or Copr. Bio++ Development Team, (November 17, 2004)

   This software is a computer program whose purpose is to provide classes
   for numerical calculus.

   This software is governed by the CeCILL  license under French law and
   abiding by the rules of distribution of free software.  You can  use,
   modify and/ or redistribute the software under the terms of the CeCILL
   license as circulated by CEA, CNRS and INRIA at the following URL
   "http://www.cecill.info".

   As a counterpart to the access to the source code and  rights to copy,
   modify and redistribute granted by the license, users are provided only
   with a limited warranty  and the software's author,  the holder of the
   economic rights,  and the successive licensors  have only  limited
   liability.

   In this respect, the user's attention is drawn to the risks associated
   with loading,  using,  modifying and/or developing or reproducing the
   software by the user in light of its specific status of free software,
   that may mean  that it is complicated to manipulate,  and  that  also
   therefore means  that it is reserved for developers  and  experienced
   professionals having in-depth computer knowledge. Users are therefore
   encouraged to load and test the software's suitability as regards their
   requirements in conditions enabling the security of their systems and/or
   data to be ensured and,  more generally, to use and operate it in the
   same conditions as regards security.

   The fact that you are presently reading this means that you have had
   knowledge of the CeCILL license and that you accept its terms.
 */

#ifndef _MIXTUREOFDISCRETEDISTRIBUTIONS_H_
#define _MIXTUREOFDISCRETEDISTRIBUTIONS_H_

#include "AbstractDiscreteDistribution.h"

namespace bpp
{
class MixtureOfDiscreteDistributions :
  public AbstractDiscreteDistribution
{
protected:
  std::vector<DiscreteDistribution*> vdd_;

  std::vector<double> probas_;

  std::vector<std::string> vNestedPrefix_;

public:
  MixtureOfDiscreteDistributions(const std::vector<DiscreteDistribution*>& distributions, const std::vector<double>& probas);

  ~MixtureOfDiscreteDistributions();

  MixtureOfDiscreteDistributions(const MixtureOfDiscreteDistributions& mdd);

  MixtureOfDiscreteDistributions& operator=(const MixtureOfDiscreteDistributions& mdd);

#if defined(NO_VIRTUAL_COV)
  Clonable* clone() const { return new MixtureOfDiscreteDistributions(*this); }
#else
  MixtureOfDiscreteDistributions* clone() const { return new MixtureOfDiscreteDistributions(*this); }
#endif

public:
  std::string getName() const {return "Mixture"; }

  size_t getNumberOfDistributions() const {return vdd_.size(); }

  const DiscreteDistribution* getNDistribution(size_t n) const
  {
    return vdd_[n];
  }

  double getNProbability(size_t n) const
  {
    return probas_[n];
  }

  void setNumberOfCategories(size_t nbClasses);

  void fireParameterChanged(const ParameterList& parameters);

  double qProb(double x) const;

  double pProb(double x) const;

  double Expectation(double a) const;

  void setMedian(bool median);

  void restrictToConstraint(const Constraint& c);

  void discretize();

  void setNamespace(const std::string& prefix);

protected:
  void updateDistribution();
};
} // end of namespace bpp.

#endif  // _MIXTUREOFDISCRETEDISTRIBUTIONS_H__