de.lmu.ifi.dbs.elki.data

Class OneDimensionalDoubleVector

java.lang.Object

de.lmu.ifi.dbs.elki.data.AbstractNumberVector

de.lmu.ifi.dbs.elki.data.OneDimensionalDoubleVector

All Implemented Interfaces:

FeatureVector<Number>, NumberVector, SpatialComparable

public class OneDimensionalDoubleVector
extends AbstractNumberVector

Specialized class implementing a one-dimensional double vector without using an array. Saves a little bit of memory, albeit we cannot avoid boxing as long as we want to implement the interface.

Author:

Erich Schubert

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	OneDimensionalDoubleVector.Factory Factory class.

Field Summary

Fields

Modifier and Type	Field and Description
static OneDimensionalDoubleVector.Factory	STATIC Static factory instance.
(package private) double	val The actual data value.

Fields inherited from class de.lmu.ifi.dbs.elki.data.AbstractNumberVector

ATTRIBUTE_SEPARATOR

Constructor Summary

Constructors

Constructor and Description
OneDimensionalDoubleVector(double val) Constructor.

Method Summary

Methods

Modifier and Type	Method and Description
double	doubleValue(int dimension) Returns the value in the specified dimension as double.
Vector	getColumnVector() Returns a Vector representing in one column and getDimensionality() rows the values of this NumberVector of V.
int	getDimensionality() The dimensionality of the vector space where of this FeatureVector of V is an element.
Double	getValue(int dimension) Deprecated.
long	longValue(int dimension) Returns the value in the specified dimension as long.

Methods inherited from class de.lmu.ifi.dbs.elki.data.AbstractNumberVector

byteValue, floatValue, getMax, getMin, intValue, shortValue

Methods inherited from class java.lang.Object

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

Methods inherited from interface de.lmu.ifi.dbs.elki.data.FeatureVector

toString

Field Detail

STATIC

public static final OneDimensionalDoubleVector.Factory STATIC

Static factory instance.

val

double val

The actual data value.

Constructor Detail

OneDimensionalDoubleVector

public OneDimensionalDoubleVector(double val)

Constructor.

Parameters:

val - Value

Method Detail

getDimensionality

public int getDimensionality()

Description copied from interface: FeatureVector

The dimensionality of the vector space where of this FeatureVector of V is an element.

Returns:

the number of dimensions of this FeatureVector of V

doubleValue

public double doubleValue(int dimension)

Description copied from interface: NumberVector

Returns the value in the specified dimension as double. Note: this might seem redundant with respect to getValue(dim).doubleValue(), but usually this is much more efficient due to boxing/unboxing cost.

Parameters:

dimension - the desired dimension, where 0 ≤ dimension < this.getDimensionality()

Returns:

the value in the specified dimension

longValue

public long longValue(int dimension)

Description copied from interface: NumberVector

Returns the value in the specified dimension as long. Note: this might seem redundant with respect to getValue(dim).longValue(), but usually this is much more efficient due to boxing/unboxing cost.

Parameters:

dimension - the desired dimension, where 0 ≤ dimension < this.getDimensionality()

Returns:

the value in the specified dimension

getValue

@Deprecated
public Double getValue(int dimension)

Deprecated.

Description copied from interface: FeatureVector

Returns the value in the specified dimension.

Parameters:

dimension - the desired dimension, where 0 ≤ dimension ≤ this.getDimensionality()-1

Returns:

the value in the specified dimension

getColumnVector

public Vector getColumnVector()

Description copied from interface: NumberVector

Returns a Vector representing in one column and getDimensionality() rows the values of this NumberVector of V.

Returns:

a Matrix representing in one column and getDimensionality() rows the values of this NumberVector of V