apriori.h

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//---------------------------------------------------------------------------
#ifndef AprioriH
#define AprioriH

//---------------------------------------------------------------------------

#include "util.h"

class Apriori{

public:

    double m_minSupport;
    long necSupport;

    ItemSets *m_Ls;

    ItemSets *m_samples;
    long m_sampleNum;
    
    Apriori()
    {
        m_minSupport = 0.1;
        m_Ls = (ItemSets *)new ItemSets();
    };

    ~Apriori()
    {
        delete(m_Ls);
    };
    
    void setsupport(double minsupport)
    {
        m_minSupport = minsupport;
    };

    void FindLargeItemSets(ItemSets *instances);
    ItemSets *singletons();

    ItemSets *selfjoin(ItemSets *in, int size);
    bool prune(ItemSets *in, ItemSet *attend, int size);

    ItemSet *join(ItemSet *first, ItemSet *attend, int size);
    bool check(ItemSet *first, ItemSet *attend, int size);
};

#endif