tdc::Counter< T > Class Template Reference

A data structure for counting occurences of values of a given type T. More...

#include <Counter.hpp>

Public Types
typedef std::unordered_map< T, size_t >	ranking_t

Public Member Functions
void	increase (const T &item)
	Increase the counter for the passed value by one, setting it to 1 if it was not yet seen. More...
void	setCount (const T &item, size_t count)
	Set the count of an item to a specific value. More...
size_t	getCount (const T &item)
	Get the count associated with a value. More...
size_t	getNumItems ()
	Return how many differnt values have been seen so far. More...
std::vector< std::pair< T, size_t > >	getSorted ()
	Return a list of value-count pairs, sorted with the most-seen first. More...
ranking_t	createRanking (size_t num=SIZE_MAX)
	Return a map of the num-most common values, keyed by their common-ness, with map[0] being hte most common one. More...

Detailed Description

template<class T>
class tdc::Counter< T >

A data structure for counting occurences of values of a given type T.

Definition at line 15 of file Counter.hpp.

Member Typedef Documentation

ranking_t

template<class T>

typedef std::unordered_map<T, size_t> tdc::Counter< T >::ranking_t

Definition at line 20 of file Counter.hpp.

Member Function Documentation

createRanking()

template<class T>

ranking_t tdc::Counter< T >::createRanking ( size_t  num = SIZE_MAX )

inline

Return a map of the num-most common values, keyed by their common-ness, with map[0] being hte most common one.

This uses the same order as getSorted().

Definition at line 75 of file Counter.hpp.

getCount()

template<class T>

size_t tdc::Counter< T >::getCount ( const T &  item )

inline

Get the count associated with a value.

Definition at line 37 of file Counter.hpp.

getNumItems()

template<class T>

size_t tdc::Counter< T >::getNumItems ( )

inline

Return how many differnt values have been seen so far.

Definition at line 42 of file Counter.hpp.

getSorted()

template<class T>

std::vector<std::pair<T, size_t> > tdc::Counter< T >::getSorted ( )

inline

Return a list of value-count pairs, sorted with the most-seen first.

Definition at line 47 of file Counter.hpp.

increase()

template<class T>

void tdc::Counter< T >::increase ( const T &  item )

inline

Increase the counter for the passed value by one, setting it to 1 if it was not yet seen.

Definition at line 24 of file Counter.hpp.

setCount()

template<class T>

void tdc::Counter< T >::setCount ( const T &  item, size_t  count  )

inline

Set the count of an item to a specific value.

Definition at line 32 of file Counter.hpp.

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

• Counter.hpp