Package org.apache.commons.math3.stat.descriptive.moment

Class VectorialMean

java.lang.Object

org.apache.commons.math3.stat.descriptive.moment.VectorialMean

All Implemented Interfaces:

Serializable

public class VectorialMean
extends Object
implements Serializable

Returns the arithmetic mean of the available vectors.

Since:

1.2

See Also:

• Serialized Form

Constructor Summary

Constructors

Constructor	Description
VectorialMean(int dimension)	Constructs a VectorialMean.

Method Summary

Modifier and Type	Method	Description
boolean	equals(Object obj)
long	getN()	Get the number of vectors in the sample.
double[]	getResult()	Get the mean vector.
int	hashCode()
void	increment(double[] v)	Add a new vector to the sample.

Methods inherited from class java.lang.Object

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

Constructor Details

VectorialMean

public VectorialMean(int dimension)

Constructs a VectorialMean.

Parameters:

dimension - vectors dimension

Method Details

increment

public void increment(double[] v)
               throws DimensionMismatchException

Add a new vector to the sample.

Parameters:

v - vector to add

Throws:

DimensionMismatchException - if the vector does not have the right dimension

getResult

public double[] getResult()

Get the mean vector.

Returns:

mean vector

getN

public long getN()

Get the number of vectors in the sample.

Returns:

number of vectors in the sample

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object