source: trunk/c++_tools/classifier/IGP.h @ 608

// $Id$

#ifndef _theplu_classifier_igp_ 
#define _theplu_classifier_igp_ 

#include <c++_tools/gslapi/matrix.h>

namespace theplu {

  namespace statistics {
    class Distance;
  }

namespace classifier {  

  class Target;
  class MatrixLookup;

  ///
  /// @brief Class for In Group Proportions (IGP)
  /// See Kapp and Tibshirani, Biostatistics (2006).
  ///
  class IGP
  {
  
  public:
    ///
    /// Constructor taking the training data, the target vector and
    /// the distance measure as input. 
    ///
    IGP(const MatrixLookup&, const Target&, const statistics::Distance&);

    ///
    /// Destrucutor
    ///
    virtual ~IGP();

    ///
    /// @return the IGP score for each class as elements in a vector.
    ///
    const gslapi::vector& score(void) const {return igp_;}


  private:
    gslapi::vector igp_;

    const statistics::Distance& distance_;
    const MatrixLookup& matrix_;
    const Target& target_;
  };  
  
}} // of namespace classifier and namespace theplu

#endif