be.ac.ulg.montefiore.run.jahmm
Class ObservationVector

java.lang.Object
  be.ac.ulg.montefiore.run.jahmm.Observation
      be.ac.ulg.montefiore.run.jahmm.ObservationVector

All Implemented Interfaces:

CentroidFactory<ObservationVector>, java.lang.Cloneable

public class ObservationVector
extends Observation
implements java.lang.Cloneable, CentroidFactory<ObservationVector>

This class holds an Observation described by a vector of reals.

Constructor Summary

ObservationVector(double[] value)
An observation that can be described by a vector of reals.

ObservationVector(int dimension)
An observation whose components are 0.

Method Summary

ObservationVector	clone()
int	dimension() Returns the dimension of this vector.
Centroid<ObservationVector>	factor() Returns the centroid matching this observation.
ObservationVector	minus(ObservationVector o) Returns a new observation that is the difference between this observation and another one.
ObservationVector	plus(ObservationVector o) Returns a new observation that is the sum of this observation and another one.
ObservationVector	times(double c) Returns a new observation that is the product of this observation by a scalar.
java.lang.String	toString(java.text.NumberFormat numberFormat) Formats this observation using a number formatter.
double	value(int i) Returns one of the values composing the observation.
double[]	values() Returns the values composing this observation.

Methods inherited from class be.ac.ulg.montefiore.run.jahmm.Observation

toString

Methods inherited from class java.lang.Object

equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ObservationVector

public ObservationVector(int dimension)

An observation whose components are 0.

Parameters:

dimension - The dimension of the resulting vector.

ObservationVector

public ObservationVector(double[] value)

An observation that can be described by a vector of reals.

Parameters:

value - The value of this observation. This array is copied.

Method Detail

dimension

public int dimension()

Returns the dimension of this vector.

values

public double[] values()

Returns the values composing this observation.

Returns:

The values of this observation. The array is copied.

value

public double value(int i)

Returns one of the values composing the observation.

Parameters:

i - The dimension of interest (0 ≤ i < dimension).

Returns:

The value of the (i+1)-th dimension of this observation.

factor

public Centroid<ObservationVector> factor()

Returns the centroid matching this observation.

Specified by:

factor in interface CentroidFactory<ObservationVector>

Returns:

The corresponding observation.

plus

public ObservationVector plus(ObservationVector o)

Returns a new observation that is the sum of this observation and another one.

Parameters:

o - The observation to sum with this one.

Returns:

An ObservationVector which is the sum of this observation and o.

times

public ObservationVector times(double c)

Returns a new observation that is the product of this observation by a scalar.

Parameters:

c - A scalar value.

Returns:

An ObservationVector which is the product of this observation and c.

minus

public ObservationVector minus(ObservationVector o)

Returns a new observation that is the difference between this observation and another one.

Parameters:

o - The observation to subtract from this one.

Returns:

An ObservationVector which is the difference between this observation and o.

toString

public java.lang.String toString(java.text.NumberFormat numberFormat)

Description copied from class: Observation

Formats this observation using a number formatter.

Specified by:

toString in class Observation

Parameters:

numberFormat - A number formatter.

Returns:

A string describing this observation.

clone

public ObservationVector clone()

Overrides:

clone in class java.lang.Object