Package com.tdunning.math.stats

Class Centroid

java.lang.Object

com.tdunning.math.stats.Centroid

All Implemented Interfaces:

Serializable, Comparable<Centroid>

public class Centroid
extends Object
implements Comparable<Centroid>, Serializable

A single centroid which represents a number of data points.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor	Description
Centroid(double x)
Centroid(double x, int w)
Centroid(double x, int id, boolean record)
Centroid(double x, int w, int id)

Method Summary

Modifier and Type	Method	Description
void	add(double x, int w)
void	add(double x, int w, Iterable<? extends Double> data)
int	compareTo(Centroid o)
int	count()
static Centroid	createWeighted(double x, int w, Iterable<? extends Double> data)
List<Double>	data()
int	hashCode()
int	id()
void	insertData(double x)
double	mean()
String	toString()

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

Centroid

public Centroid(double x)

Centroid

public Centroid(double x,
                int w)

Centroid

public Centroid(double x,
                int w,
                int id)

Centroid

public Centroid(double x,
                int id,
                boolean record)

Method Detail

add

public void add(double x,
                int w)

mean

public double mean()

count

public int count()

id

public int id()

toString

public String toString()

Overrides:

toString in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(Centroid o)

Specified by:

compareTo in interface Comparable<Centroid>

data

public List<Double> data()

insertData

public void insertData(double x)

createWeighted

public static Centroid createWeighted(double x,
                                      int w,
                                      Iterable<? extends Double> data)

add

public void add(double x,
                int w,
                Iterable<? extends Double> data)