org.djunits.value.vdouble.vector

Class DoubleVectorDataSparse

java.lang.Object

org.djunits.value.vdouble.vector.DoubleVectorData

org.djunits.value.vdouble.vector.DoubleVectorDataSparse

All Implemented Interfaces:

Serializable

public class DoubleVectorDataSparse
extends DoubleVectorData

Stores sparse data for a DoubleVector and carries out basic operations.

Copyright (c) 2013-2019 Delft University of Technology, PO Box 5, 2600 AA, Delft, the Netherlands. All rights reserved.
BSD-style license. See OpenTrafficSim License.

$LastChangedDate: 2015-07-24 02:58:59 +0200 (Fri, 24 Jul 2015) $, @version $Revision: 1147 $, by $Author: averbraeck $, initial version Oct 3, 2015

Author:

Alexander Verbraeck, Peter Knoppers

See Also:

Serialized Form

Field Summary

Fields inherited from class org.djunits.value.vdouble.vector.DoubleVectorData

PARALLEL_THRESHOLD, vectorSI

Constructor Summary

Constructors

Constructor and Description
DoubleVectorDataSparse(double[] vectorSI, int[] indices, int size) Create a vector with sparse data.

Method Summary

Modifier and Type	Method and Description
DoubleVectorDataSparse	copy()
void	decrementBy(DoubleVectorData right) Subtract a vector from this vector on a cell-by-cell basis.
void	divideBy(DoubleVectorData right) Divide the values of a vector by the values of another vector on a cell-by-cell basis.
boolean	equals(Object obj)
double[]	getDenseVectorSI()
double	getSI(int index)
int	hashCode()
void	incrementBy(DoubleVectorData right) Add a vector to this vector on a cell-by-cell basis.
static DoubleVectorDataSparse	instantiate(double[] valuesSI) Instantiate a DoubleVectorDataSparse from an array.
void	multiplyBy(DoubleVectorData right) Multiply a vector with the values of another vector on a cell-by-cell basis.
void	setSI(int index, double valueSI) Sets a value at the index in the vector.
int	size()
DoubleVectorDataDense	toDense()

Methods inherited from class org.djunits.value.vdouble.vector.DoubleVectorData

cardinality, decrementBy, divide, divideBy, getStorageType, incrementBy, instantiate, instantiate, instantiate, instantiate, instantiateLD, instantiateMD, isDense, isSparse, minus, multiplyBy, plus, times, toSparse, toString, zSum

Methods inherited from class java.lang.Object

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

Constructor Detail

DoubleVectorDataSparse

public DoubleVectorDataSparse(double[] vectorSI,
                              int[] indices,
                              int size)

Create a vector with sparse data.

Parameters:

vectorSI - double[]; the data to store

indices - int[]; the index values of the Vector

size - int; the length of the vector (padded with 0 after highest index in indices)

Method Detail

toDense

public final DoubleVectorDataDense toDense()

Overrides:

toDense in class DoubleVectorData

Returns:

the dense transformation of this data

size

public final int size()

Specified by:

size in class DoubleVectorData

Returns:

the size of the vector

getSI

public final double getSI(int index)

Specified by:

getSI in class DoubleVectorData

Parameters:

index - int; the index to get the value for

Returns:

the value at the index

setSI

public final void setSI(int index,
                        double valueSI)

Sets a value at the index in the vector.

Specified by:

setSI in class DoubleVectorData

Parameters:

index - int; the index to set the value for

valueSI - double; the value at the index

getDenseVectorSI

public final double[] getDenseVectorSI()

Specified by:

getDenseVectorSI in class DoubleVectorData

Returns:

a safe copy of VectorSI

copy

public final DoubleVectorDataSparse copy()

Specified by:

copy in class DoubleVectorData

Returns:

a deep copy of the data.

instantiate

public static DoubleVectorDataSparse instantiate(double[] valuesSI)

Instantiate a DoubleVectorDataSparse from an array.

Parameters:

valuesSI - double[]; the (SI) values to store

Returns:

the DoubleVectorDataSparse

incrementBy

public final void incrementBy(DoubleVectorData right)
                       throws ValueException

Add a vector to this vector on a cell-by-cell basis. The type of vector (sparse, dense) stays the same.

Specified by:

incrementBy in class DoubleVectorData

Parameters:

right - DoubleVectorData; the other data object to add

Throws:

ValueException - if vectors have different lengths

decrementBy

public final void decrementBy(DoubleVectorData right)
                       throws ValueException

Subtract a vector from this vector on a cell-by-cell basis. The type of vector (sparse, dense) stays the same.

Specified by:

decrementBy in class DoubleVectorData

Parameters:

right - DoubleVectorData; the other data object to subtract

Throws:

ValueException - if vectors have different lengths

multiplyBy

public final void multiplyBy(DoubleVectorData right)
                      throws ValueException

Multiply a vector with the values of another vector on a cell-by-cell basis. The type of vector (sparse, dense) stays the same.

Specified by:

multiplyBy in class DoubleVectorData

Parameters:

right - DoubleVectorData; the other data object to multiply with

Throws:

ValueException - if vectors have different lengths

divideBy

public final void divideBy(DoubleVectorData right)
                    throws ValueException

Divide the values of a vector by the values of another vector on a cell-by-cell basis. The type of vector (sparse, dense) stays the same.

Specified by:

divideBy in class DoubleVectorData

Parameters:

right - DoubleVectorData; the other data object to divide by

Throws:

ValueException - if vectors have different lengths

hashCode

public int hashCode()

Overrides:

hashCode in class DoubleVectorData

equals

public boolean equals(Object obj)

Overrides:

equals in class DoubleVectorData