source: trunk/c++_tools/classifier/FeatureSelectorIR.cc @ 624

// $Id$

#include "FeatureSelectorIR.h"

#include "FeatureSelector.h"
#include "InputRanker.h"

#include <algorithm>

namespace theplu {
namespace classifier {


  FeatureSelectorIR::FeatureSelectorIR(statistics::Score& score, size_t N, 
                                       size_t first)
    : FeatureSelector(N, first), score_(score)
  {
  }



  FeatureSelectorIR::FeatureSelectorIR(const FeatureSelectorIR& other)
    : FeatureSelector(other), score_(other.score_)
  {
  }



  FeatureSelectorIR& FeatureSelectorIR::operator=(const FeatureSelectorIR& other)
  {
    FeatureSelector::operator=(other);
    return *this;
  }


  void FeatureSelectorIR::update(const MatrixLookup& data, const Target& target)
  {
    InputRanker ir = InputRanker(data, target, score_);
    features_.resize(N_);
    std::copy(ir.rank().begin()+first_, ir.rank().begin()+first_+N_,
              features_.begin());
    
  }


  void FeatureSelectorIR::update(const MatrixLookupWeighted& data, 
                                 const Target& target)
  {
    InputRanker ir = InputRanker(data, target, score_);
    features_.resize(N_);
    std::copy(ir.rank().begin()+first_, ir.rank().begin()+first_+N_,
              features_.begin());
    
  }


} // end of namespace classifier
} // end of namespace theplu