mikera.vectorz.impl

Class AStridedVector

java.lang.Object

mikera.arrayz.impl.AbstractArray<Double>

mikera.vectorz.AVector

mikera.vectorz.impl.AStridedVector

All Implemented Interfaces:

Serializable, Cloneable, Comparable<AVector>, Iterable<Double>, IStridedArray, INDArray, IVector

Direct Known Subclasses:

AArrayVector, StridedVector

public abstract class AStridedVector
extends AVector
implements IStridedArray

Abstract base class for vectors backed by a double[] array with a constant stride The double array can be directly accessed for performance purposes

Author:

Mike

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
AStridedVector()

Method Summary

Methods

Modifier and Type	Method and Description
void	add(Vector v)
double[]	asDoubleArray() Returns the underlying double array representing the packed elements of this array Returns nil if there is no such underlying array
INDArray	broadcast(int... shape) Returns a view of this array broadcasted up to a larger shape
INDArray	broadcastLike(AMatrix target)
INDArray	broadcastLike(INDArray target) Broadcasts to match the shape of the target
AStridedVector	clone() Clones the vector, creating a new mutable copy of all data.
double	dotProduct(double[] data, int offset) Fast dot product with a double[] array.
AStridedVector	ensureMutable() Ensures the array is a fully mutable, efficient representation that is not a view.
abstract double[]	getArray()
abstract int	getArrayOffset()
abstract int	getStride()
int	getStride(int dimension)
int[]	getStrides()
boolean	isPackedArray()
Iterator<Double>	iterator()

Methods inherited from class mikera.vectorz.AVector

abs, add, add, add, add, add, add, addAt, addMultiple, addMultiple, addMultiple, addMultiple, addMultiple, addMultiple, addMultiple, addMultiple, addMultipleToArray, addProduct, addProduct, addProduct, addProductToArray, addProductToArray, addToArray, addToArray, addWeighted, angle, applyOp, applyOp, asElementList, asVector, clamp, clampMax, clampMin, compareTo, copyTo, copyTo, copyTo, copyTo, copyTo, copyTo, crossProduct, dimensionality, distance, distanceL1, distanceLinf, distanceSquared, divide, divide, divide, divide, divideTo, dotProduct, dotProduct, dotProduct, elementCount, elementIterator, elementSquaredSum, elementSum, epsilonEquals, epsilonEquals, epsilonEquals, epsilonEquals, equals, equals, equals, equalsArray, equalsArray, exactClone, fill, fillRange, get, get, get, get, getElements, getLongShape, getShape, getShape, getSlices, getTranspose, getTransposeCopy, getTransposeView, hashCode, immutable, innerProduct, innerProduct, innerProduct, innerProduct, innerProduct, interpolate, interpolate, isElementConstrained, isFullyMutable, isMutable, isSameShape, isSameShape, isUnitLengthVector, isView, isZero, join, length, log, logistic, magnitude, magnitudeSquared, maxAbsElement, multiply, multiply, multiply, multiply, multiplyTo, mutable, negate, nonZeroCount, normalise, normaliseMaxAbsElement, outerProduct, outerProduct, pow, projectToPlane, reshape, scale, scaleAdd, scaleAdd, scaleToMagnitude, set, set, set, set, set, set, set, set, set, set, setElements, setElements, setRange, setValues, signum, slice, slice, sliceCount, square, sub, sub, sub, subMultiple, subVector, tanh, toDoubleArray, toDoubleBuffer, toList, toNormal, toString, toVector, unsafeGet, unsafeSet, validate, zeroCount

Methods inherited from class mikera.arrayz.impl.AbstractArray

broadcastCloneLike, exp, get, getSliceViews, isBoolean, reciprocal, scale, set, set, sqrt, toArray

Methods inherited from class java.lang.Object

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

Methods inherited from interface mikera.arrayz.impl.IStridedArray

getShape

Methods inherited from interface mikera.arrayz.INDArray

abs, add, add, applyOp, applyOp, asElementList, asVector, broadcastCloneLike, clamp, copyTo, dimensionality, divide, divide, elementCount, elementIterator, elementSquaredSum, elementSum, epsilonEquals, epsilonEquals, equals, exactClone, exp, fill, get, get, get, get, getElements, getLongShape, getShape, getSlices, getSliceViews, getTranspose, getTransposeCopy, getTransposeView, innerProduct, isBoolean, isElementConstrained, isFullyMutable, isMutable, isSameShape, isView, isZero, log, multiply, multiply, negate, nonZeroCount, outerProduct, pow, reciprocal, reshape, scale, scaleAdd, set, set, set, set, set, set, setElements, setElements, signum, slice, slice, sliceCount, sqrt, square, sub, sub, toArray, toDoubleArray, toDoubleBuffer, toVector, validate

Constructor Detail

AStridedVector

public AStridedVector()

Method Detail

getArray

public abstract double[] getArray()

Specified by:

getArray in interface IStridedArray

getArrayOffset

public abstract int getArrayOffset()

Specified by:

getArrayOffset in interface IStridedArray

getStride

public abstract int getStride()

ensureMutable

public AStridedVector ensureMutable()

Description copied from interface: INDArray

Ensures the array is a fully mutable, efficient representation that is not a view. Returns either the same array or a new clone.

Specified by:

ensureMutable in interface INDArray

Overrides:

ensureMutable in class AbstractArray<Double>

dotProduct

public double dotProduct(double[] data,
                int offset)

Description copied from class: AVector

Fast dot product with a double[] array.

Overrides:

dotProduct in class AVector

Returns:

broadcast

public INDArray broadcast(int... shape)

Description copied from interface: INDArray

Returns a view of this array broadcasted up to a larger shape

Specified by:

broadcast in interface INDArray

Overrides:

broadcast in class AVector

Returns:

broadcastLike

public INDArray broadcastLike(INDArray target)

Description copied from interface: INDArray

Broadcasts to match the shape of the target

Specified by:

broadcastLike in interface INDArray

Overrides:

broadcastLike in class AVector

Returns:

broadcastLike

public INDArray broadcastLike(AMatrix target)

Overrides:

broadcastLike in class AVector

clone

public AStridedVector clone()

Description copied from class: AVector

Clones the vector, creating a new mutable copy of all data. The clone is: - not guaranteed to be of the same type. - guaranteed to be fully mutable - guaranteed not to contain a reference (i.e. is a full deep copy)

Specified by:

clone in interface INDArray

Overrides:

clone in class AVector

Returns:

add

public void add(Vector v)

asDoubleArray

public double[] asDoubleArray()

Description copied from interface: INDArray

Returns the underlying double array representing the packed elements of this array Returns nil if there is no such underlying array

Specified by:

asDoubleArray in interface INDArray

Overrides:

asDoubleArray in class AVector

isPackedArray

public boolean isPackedArray()

Specified by:

isPackedArray in interface IStridedArray

getStrides

public int[] getStrides()

Specified by:

getStrides in interface IStridedArray

iterator

public Iterator<Double> iterator()

Specified by:

iterator in interface Iterable<Double>

Overrides:

iterator in class AVector

getStride

public int getStride(int dimension)

Specified by:

getStride in interface IStridedArray