bodon-vector/InfrequentRemover.hpp

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#ifndef InfrequentRemover_HPP
#define InfrequentRemover_HPP

#include "apriori/bodon-vector/vector_typedef.hpp"
#include "common/log.h"
//#include <cstdio>
//#include <iterator>   //for test




namespace Bodon
{
namespace vector_based
{
   template <class D, class DUMMY>
   class InfrequentRemover 
   {
      protected:
         cand_vector_t& candidates; 
         D& decoder;
      public:
         InfrequentRemover<D, DUMMY> 
         (cand_vector_t& candidates, D& decoder, DUMMY& dummy) :
            candidates(candidates), decoder(decoder){}


         void deleteInfrequent( const counter_t min_supp, 
                                const unsigned int candidate_size );
         void afterWorkDel(){}
      protected:


   };
   template <class D, class DUMMY> inline
   void InfrequentRemover<D, DUMMY>::
   deleteInfrequent( const counter_t min_supp, 
                     const unsigned int candidate_size )
   {
      cand_vector_t::iterator it = candidates.begin(); 
      while(it != candidates.end())
         if((*it).second < min_supp)
            it = candidates.erase(it);
         else
         {
            decoder.writeItemsetAndCounter(
               (*it).first.begin(), (*it).first.end(), (*it).second);
            ++it;
         }
   }
}
}
#endif

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