de.lmu.ifi.dbs.elki.data

Class OneDimensionalDoubleVector

java.lang.Object

de.lmu.ifi.dbs.elki.data.AbstractNumberVector<OneDimensionalDoubleVector,Double>

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

All Implemented Interfaces:

FeatureVector<OneDimensionalDoubleVector,Double>, NumberVector<OneDimensionalDoubleVector,Double>, SpatialComparable

public class OneDimensionalDoubleVector
extends AbstractNumberVector<OneDimensionalDoubleVector,Double>

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.

Field Summary

Fields

Modifier and Type	Field and Description
(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.
Matrix	getRowVector() Returns a Matrix representing in one row and getDimensionality() columns the values of this NumberVector of V.
Double	getValue(int dimension) Returns the value in the specified dimension.
long	longValue(int dimension) Returns the value in the specified dimension as long.
OneDimensionalDoubleVector	minus(OneDimensionalDoubleVector fv) Returns a new NumberVector of V that is the sum of this NumberVector of V and the negativeVector() of given NumberVector of V.
OneDimensionalDoubleVector	multiplicate(double k) Returns a new NumberVector of V that is the result of a scalar multiplication with the given scalar.
OneDimensionalDoubleVector	negativeVector() Returns the additive inverse to this NumberVector of V.
OneDimensionalDoubleVector	newInstance(double[] values) Returns a new NumberVector of N for the given values.
OneDimensionalDoubleVector	newInstance(Double[] values) Returns a new FeatureVector of V for the given values.
OneDimensionalDoubleVector	newInstance(List<Double> values) Returns a new FeatureVector of V for the given values.
OneDimensionalDoubleVector	newInstance(Vector values) Returns a new NumberVector of N for the given values.
OneDimensionalDoubleVector	nullVector() Provides a null vector of the same Vector Space as this NumberVector of V (that is, of the same dimensionality).
OneDimensionalDoubleVector	plus(OneDimensionalDoubleVector fv) Returns a new NumberVector of V that is the sum of this NumberVector of V and the given NumberVector of V.
Double	scalarProduct(OneDimensionalDoubleVector fv) Provides the scalar product (inner product) of this NumberVector of V and the given NumberVector of V.

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

byteValue, equals, floatValue, getMax, getMin, hashCode, intValue, shortValue

Methods inherited from class java.lang.Object

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

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

toString

Field Detail

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 1 ≤ 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 1 ≤ dimension ≤ this.getDimensionality()

Returns:

the value in the specified dimension

getValue

public Double getValue(int dimension)

Description copied from interface: FeatureVector

Returns the value in the specified dimension.

Parameters:

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

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

getRowVector

public Matrix getRowVector()

Description copied from interface: NumberVector

Returns a Matrix representing in one row and getDimensionality() columns the values of this NumberVector of V.

Returns:

a Matrix representing in one row and getDimensionality() columns the values of this NumberVector of V

nullVector

public OneDimensionalDoubleVector nullVector()

Description copied from interface: NumberVector

Provides a null vector of the same Vector Space as this NumberVector of V (that is, of the same dimensionality).

Returns:

a null vector of the same Vector Space as this NumberVector of V (that is, of the same dimensionality)

negativeVector

public OneDimensionalDoubleVector negativeVector()

Description copied from interface: NumberVector

Returns the additive inverse to this NumberVector of V.

Returns:

the additive inverse to this NumberVector of V

plus

public OneDimensionalDoubleVector plus(OneDimensionalDoubleVector fv)

Description copied from interface: NumberVector

Returns a new NumberVector of V that is the sum of this NumberVector of V and the given NumberVector of V.

Parameters:

fv - a NumberVector of V to be added to this NumberVector of V

Returns:

a new NumberVector of V that is the sum of this NumberVector of V and the given NumberVector of V

minus

public OneDimensionalDoubleVector minus(OneDimensionalDoubleVector fv)

Description copied from interface: NumberVector

Returns a new NumberVector of V that is the sum of this NumberVector of V and the negativeVector() of given NumberVector of V.

Parameters:

fv - a NumberVector of V to be subtracted to this NumberVector of V

Returns:

a new NumberVector of V that is the sum of this NumberVector of V and the negative of given NumberVector of V

scalarProduct

public Double scalarProduct(OneDimensionalDoubleVector fv)

Description copied from interface: NumberVector

Provides the scalar product (inner product) of this NumberVector of V and the given NumberVector of V.

Parameters:

fv - the NumberVector of V to compute the scalar product for

Returns:

the scalar product (inner product) of this and the given NumberVector of V

multiplicate

public OneDimensionalDoubleVector multiplicate(double k)

Description copied from interface: NumberVector

Returns a new NumberVector of V that is the result of a scalar multiplication with the given scalar.

Parameters:

k - a scalar to multiply this NumberVector of V with

Returns:

a new NumberVector of V that is the result of a scalar multiplication with the given scalar

newInstance

public OneDimensionalDoubleVector newInstance(double[] values)

Description copied from interface: NumberVector

Returns a new NumberVector of N for the given values.

Parameters:

values - the values of the NumberVector

Returns:

a new NumberVector of N for the given values

newInstance

public OneDimensionalDoubleVector newInstance(Vector values)

Description copied from interface: NumberVector

Returns a new NumberVector of N for the given values.

Parameters:

values - the values of the NumberVector

Returns:

a new NumberVector of N for the given values

newInstance

public OneDimensionalDoubleVector newInstance(Double[] values)

Description copied from interface: FeatureVector

Returns a new FeatureVector of V for the given values.

Parameters:

values - the values of the featureVector

Returns:

a new FeatureVector of V for the given values

newInstance

public OneDimensionalDoubleVector newInstance(List<Double> values)

Description copied from interface: FeatureVector

Returns a new FeatureVector of V for the given values.

Parameters:

values - the values of the featureVector

Returns:

a new FeatureVector of V for the given values