com.antelmann.math
Class CounterMap<T>

java.lang.Object
  com.antelmann.math.CounterMap<T>

All Implemented Interfaces:

Addable<CounterMap<T>>, DetailedString, Serializable

public class CounterMap<T>
extends Object
implements Serializable, DetailedString, Addable<CounterMap<T>>

a simple helper class that allows to easily count occurrences of categories.

Since:

27.05.2009, 13:21:44

Author:

Holger Antelmann

See Also:

DataMatrix, DataMap, Serialized Form

Constructor Summary

CounterMap()

Method Summary

CounterMap<T>	add(CounterMap<T> data) adds this instance to the other given one and returns the result; this entry itself remains untouched
void	add(T element)
void	add(T element, int count)
void	addAll(Map<? extends T,? extends Number> data)
void	clear()
boolean	equals(Object obj)
int	getCountFor(T element)
DataPoint	getCountStatistics()
ArrayList<T>	getDublicates()
Set<T>	getElements()
int	getMaxCount()
int	getMinCount()
double	getPercentageFor(T element)
TreeSet<T>	getSortedElements()
TreeSet<T>	getSortedElements(Comparator<? super T> comp)
TreeSet<T>	getSortedElementsByCount(boolean ascending)
int	getTotal()
ArrayList<T>	getUniques()
Map<T,Integer>	getView() provides an unmodifiable view of the data
int	hashCode()
boolean	isEmpty()
int	size()
String	toDetailedString() provides full details of this instance in a String.

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

CounterMap

public CounterMap()

Method Detail

add

public void add(T element)

add

public void add(T element,
                int count)

addAll

public void addAll(Map<? extends T,? extends Number> data)

add

public CounterMap<T> add(CounterMap<T> data)

Description copied from interface: Addable

adds this instance to the other given one and returns the result; this entry itself remains untouched

Specified by:

add in interface Addable<CounterMap<T>>

getCountFor

public int getCountFor(T element)

getPercentageFor

public double getPercentageFor(T element)

getCountStatistics

public DataPoint getCountStatistics()

getMaxCount

public int getMaxCount()

getMinCount

public int getMinCount()

getTotal

public int getTotal()

getSortedElements

public TreeSet<T> getSortedElements()

getSortedElements

public TreeSet<T> getSortedElements(Comparator<? super T> comp)

getSortedElementsByCount

public TreeSet<T> getSortedElementsByCount(boolean ascending)

getElements

public Set<T> getElements()

size

public int size()

isEmpty

public boolean isEmpty()

getView

public Map<T,Integer> getView()

provides an unmodifiable view of the data

getUniques

public ArrayList<T> getUniques()

getDublicates

public ArrayList<T> getDublicates()

clear

public void clear()

toDetailedString

public String toDetailedString()

Description copied from interface: DetailedString

provides full details of this instance in a String. In case the String contains multiple lines, it is recommended to use '\n' rather than the platform specific line-break for better compatibility.

Specified by:

toDetailedString in interface DetailedString

Returns:

a (potentially multi-line) String providing full details on this object instance

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object