FrequentFilter< IT_R > Class Template Reference

This class determines the frequent items. More...

Collaboration diagram for FrequentFilter< IT_R >:

[legend]List of all members.

Public Member Functions
	FrequentFilter (IT_R &it_r)
void	findFrequentItems (std::vector< std::pair< counter_t, item_t > > &freq_items_with_counters, counter_t &nr_of_transactions, counter_t &min_supp, bool relative=false, double relminsupp=0.0)
	if relative=true then relminsupp will be used to calculate the absolute minimum support, which will be stored in min_supp.
Private Attributes
IT_R &	it_r

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Detailed Description

template<class IT_R>
class FrequentFilter< IT_R >

This class determines the frequent items.

It just reads in transactions one-by-one, increases the counter of the items, and then selects the frequent items.

Parameters:

IT_R

the transaction reader

Definition at line 18 of file FrequentFilter.cpp.

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Constructor & Destructor Documentation

template<class IT_R> FrequentFilter< IT_R >::FrequentFilter (  IT_R &  it_r  )  [inline]

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Member Function Documentation

template<class IT_R> void FrequentFilter< IT_R >::findFrequentItems (  std::vector< std::pair< counter_t, item_t > > &  freq_items_with_counters, counter_t &  nr_of_transactions, counter_t &  min_supp, bool  relative = false, double  relminsupp = 0.0 )

if relative=true then relminsupp will be used to calculate the absolute minimum support, which will be stored in min_supp. relminsupp is a real number in [0,1]. (Thus not a percentage) Definition at line 45 of file FrequentFilter.cpp. References FrequentFilter< IT_R >::it_r. Referenced by DBCacheTester::doTest(), and main().

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Member Data Documentation

template<class IT_R> IT_R& FrequentFilter< IT_R >::it_r [private]

Definition at line 33 of file FrequentFilter.cpp. Referenced by FrequentFilter< IT_R >::findFrequentItems().

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The documentation for this class was generated from the following file:

• FrequentFilter.cpp

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