mikera.vectorz.impl

Class RepeatedElementVector

java.lang.Object

mikera.arrayz.impl.AbstractArray<java.lang.Double>

mikera.vectorz.AVector

mikera.vectorz.impl.ASizedVector

mikera.vectorz.impl.RepeatedElementVector

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<INDArray>, java.lang.Iterable<java.lang.Double>, INDArray, IVector

public final class RepeatedElementVector
extends ASizedVector

An immutable vector that has the same value for elements.

See Also:

Serialized Form

Method Summary

Modifier and Type	Method and Description
AVector	absCopy() Returns a copy of the array with the abs operator applied to each element
AVector	addCopy(AVector v) Adds a vector element-wise to this vector, returning a new vector.
AVector	addCopy(double v) Creates a new array equal to this array with a constant value added to every element
void	addToArray(double[] data, int offset) Adds this vector to a double[] array, starting at the specified offset.
AVector	applyOpCopy(Op op) Applies a unary operator to all elements of the array (creating a new array)
static RepeatedElementVector	create(int length, double value)
double	dotProduct(AVector v) Returns the dot product of this vector with another vector The vectors must have the same length: if not the result is undefined
double	dotProduct(double[] data, int offset) Fast dot product with a double[] array.
double	dotProduct(double[] data, int offset, int stride) Fast dot product with a double[] array and a stride.
double	elementAbsPowSum(double p) Returns the sum of the absolute values of all the elements raised to a specified power
double	elementMax() Returns the maximum element value in this array.
double	elementMin() Returns the maximum element value in this array.
double	elementPowSum(double p) Returns the sum of all the elements raised to a specified power
double	elementProduct() Returns the product of all elements in the array.
boolean	elementsEqual(double value) Returns true if all elements are equal to a specific value
double	elementSquaredSum() Returns the sum of squared elements in this array.
double	elementSum() Returns the sum of all elements in a vector
boolean	equals(AVector v) Returns true if this array is exactly equal to a vector.
boolean	equalsArray(double[] data, int offset) Returns true if this vector exactly matches the elements in double[] array, starting from the specified offset
RepeatedElementVector	exactClone() Returns an exact clone of this vector, i.e.
double	get(int i) Returns the double value at the specified position in a 1D vector
void	getElements(double[] dest, int offset) Copies all elements of this array a double array at the specified offset
boolean	hasUncountable() Returns true if any element is this array is NaN or infinite
AVector	innerProduct(AMatrix m) Computes the inner product of this vector with a matrix
boolean	isElementConstrained() Returns true if this array has some constraints on element values
boolean	isFullyMutable() Returns true if this vector is fully mutable, i.e.
boolean	isMutable() Returns true if this vector is mutable.
boolean	isRangeZero(int start, int length) Returns true if a sub-vector range is completely zero.
boolean	isZero() Returns true if this vector is a zero vector (all components zero)
java.util.Iterator<java.lang.Double>	iterator()
AVector	multiplyCopy(AVector v) Multiplies a vector element-wise with this vector, returning a new vector.
AVector	multiplyCopy(double d) Returns a copy of the array with all elements multiplied by a single constant value
AVector	negateCopy() Negates all elements in the array, returning a new array
long	nonZeroCount() Returns the number of non-zero elements in the array.
AVector	reciprocalCopy() Computes the reciprocal of all elements in this vector.
AVector	select(int... order) Selects a subset of indices from a vector
void	set(int i, double value) Sets a value at a given position in a mutable 1D array
AVector	subVector(int offset, int length) Obtains a sub-vector view that refers to this vector.
AVector	tryEfficientJoin(AVector a) Attempts to perform an efficient join with a second vector.
double	unsafeGet(int i) Like get, but performs no bounds checking.

Methods inherited from class mikera.vectorz.impl.ASizedVector

checkIndex, checkLength, checkRange, elementCount, equalsArray, get, getShape, getShapeClone, isSameShape, length, sliceCount, visitNonZero

Methods inherited from class mikera.vectorz.AVector

abs, absDiff, absDiff, absDiff, absDiffCopy, add, add, add, add, add, add, add, add, add, addAt, addAt, addCopy, addInnerProduct, addInnerProduct, addInnerProduct, addInnerProduct, addMultiple, addMultiple, addMultiple, addMultiple, addMultiple, addMultiple, addMultiple, addMultiple, addMultipleCopy, addMultipleSparse, addMultipleSparse, addMultipleToArray, addMultipleToArray, addPower, addPower, addProduct, addProduct, addProduct, addProductCopy, addProductCopy, addProductToArray, addProductToArray, addSparse, addSparse, addToArray, addToArray, addWeighted, angle, applyOp, applyOp, applyOp, applyOp, applyOp, asDoubleArray, asElementList, asVector, broadcast, broadcastLike, broadcastLike, broadcastLike, clamp, clampMax, clampMin, clone, compareTo, compareTo, copy, copyTo, copyTo, copyTo, copyTo, copyTo, crossProduct, crossProduct, dense, denseClone, dimensionality, distance, distanceL1, distanceLinf, distanceSquared, divide, divide, divide, divide, divideCopy, divideCopy, divideCopy, divideTo, dotProduct, dotProduct, elementIterator, elementMaxAbs, epsilonEquals, epsilonEquals, epsilonEquals, equals, equals, fill, fillRange, get, get, get, get, get, getElement, getElements, getElements, getLongShape, getShape, getSlices, getTranspose, getTransposeCopy, getTransposeView, hashCode, immutable, innerProduct, innerProduct, innerProduct, innerProduct, innerProduct, interpolate, isSameShape, isUnitLengthVector, isUnitLengthVector, isView, join, join, join, log, logistic, magnitude, magnitudeSquared, maxAbsElement, maxAbsElementIndex, maxElement, maxElementIndex, minElement, minElementIndex, multiply, multiply, multiply, multiply, multiply, multiplyCopy, multiplyTo, mutable, negate, nonSparseIndex, nonZeroIndices, nonZeroValues, normalise, normaliseCopy, normaliseMaxAbsElement, outerProduct, outerProduct, pow, projectToPlane, reciprocal, reduce, reduce, reduceSlices, reduceSlices, reorder, reorder, reshape, rotateCopy, rotateView, rotateView, scale, scaleAdd, scaleAdd, scaleAdd, scaleAdd, scaleCopy, scaleToMagnitude, selectClone, selectView, set, set, set, set, set, set, set, set, set, set, setApplyOp, setApplyOp, setApplyOp, setElements, setElements, setElements, setInnerProduct, setInnerProduct, setInnerProduct, setMultiple, setMultiple, setMultiple, setMultiple, setSparse, setSparse, setSparse, shiftCopy, signum, slice, slice, sliceValue, softmax, softmaxCopy, sparse, sparseClone, sqrtCopy, square, squareCopy, sub, sub, subArray, subAt, subCopy, subCopy, subMultiple, tanh, toDoubleArray, toDoubleBuffer, toList, toNormal, toSliceArray, toString, toStringFull, toVector, unsafeSet, validate

Methods inherited from class mikera.arrayz.impl.AbstractArray

add, addApplyOp, addCopy, addInnerProduct, addInnerProduct, addOuterProduct, addOuterProductSparse, addSparse, broadcastCloneLike, broadcastCopyLike, componentCount, density, ensureMutable, epsilonEquals, exp, get, get, getComponent, getComponents, getElements, getElements, getSlices, getSliceViews, isBoolean, isDense, isSparse, scale, set, set, signumCopy, sqrt, sub, sub, withComponents

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface mikera.arrayz.INDArray

addApplyOp, addInnerProduct, addOuterProduct, addOuterProductSparse, addSparse, broadcastCloneLike, broadcastCopyLike, componentCount, ensureMutable, epsilonEquals, exp, get, get, getComponent, getComponents, getElements, getElements, getSlices, getSliceViews, isBoolean, isDense, isSparse, scale, set, set, signumCopy, sqrt, sub, withComponents

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Method Detail

create

public static RepeatedElementVector create(int length,
                                           double value)

isFullyMutable

public boolean isFullyMutable()

Description copied from class: AVector

Returns true if this vector is fully mutable, i.e. can contain any unconstrained double values

Specified by:

isFullyMutable in interface INDArray

Overrides:

isFullyMutable in class AVector

isMutable

public boolean isMutable()

Description copied from class: AVector

Returns true if this vector is mutable.

Specified by:

isMutable in interface INDArray

Overrides:

isMutable in class AVector

isZero

public boolean isZero()

Description copied from class: AVector

Returns true if this vector is a zero vector (all components zero)

Specified by:

isZero in interface INDArray

Overrides:

isZero in class AVector

isRangeZero

public boolean isRangeZero(int start,
                           int length)

Description copied from class: AVector

Returns true if a sub-vector range is completely zero. Unsafe operation - does not perform bounds checking, results are undefined if sub-vector is out of range

Overrides:

isRangeZero in class AVector

Returns:

isElementConstrained

public boolean isElementConstrained()

Description copied from interface: INDArray

Returns true if this array has some constraints on element values

Specified by:

isElementConstrained in interface INDArray

Overrides:

isElementConstrained in class AVector

get

public double get(int i)

Description copied from interface: INDArray

Returns the double value at the specified position in a 1D vector

Specified by:

get in interface INDArray

Specified by:

get in interface IVector

Specified by:

get in class AVector

unsafeGet

public double unsafeGet(int i)

Description copied from class: AVector

Like get, but performs no bounds checking. Results are undefined if the index is out of range

Overrides:

unsafeGet in class AVector

applyOpCopy

public AVector applyOpCopy(Op op)

Description copied from interface: INDArray

Applies a unary operator to all elements of the array (creating a new array)

Specified by:

applyOpCopy in interface INDArray

Overrides:

applyOpCopy in class AVector

elementSum

public double elementSum()

Description copied from class: AVector

Returns the sum of all elements in a vector

Specified by:

elementSum in interface INDArray

Overrides:

elementSum in class AVector

elementProduct

public double elementProduct()

Description copied from interface: INDArray

Returns the product of all elements in the array.

Specified by:

elementProduct in interface INDArray

Overrides:

elementProduct in class AVector

Returns:

elementMax

public double elementMax()

Description copied from interface: INDArray

Returns the maximum element value in this array. Throws an error if there are no elements.

Specified by:

elementMax in interface INDArray

Overrides:

elementMax in class AVector

elementMin

public double elementMin()

Description copied from interface: INDArray

Returns the maximum element value in this array. Throws an error if there are no elements.

Specified by:

elementMin in interface INDArray

Overrides:

elementMin in class AVector

elementSquaredSum

public double elementSquaredSum()

Description copied from interface: INDArray

Returns the sum of squared elements in this array.

Specified by:

elementSquaredSum in interface INDArray

Overrides:

elementSquaredSum in class AVector

dotProduct

public double dotProduct(AVector v)

Description copied from class: AVector

Returns the dot product of this vector with another vector The vectors must have the same length: if not the result is undefined

Overrides:

dotProduct in class AVector

Returns:

dotProduct

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

Description copied from class: AVector

Fast dot product with a double[] array. Performs no bounds checking. Likely to be faster than most other dot product operations

Specified by:

dotProduct in class AVector

dotProduct

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

Description copied from class: AVector

Fast dot product with a double[] array and a stride. Performs no bounds checking. Likely to be faster than other dot product operations

Overrides:

dotProduct in class AVector

multiplyCopy

public AVector multiplyCopy(double d)

Description copied from interface: INDArray

Returns a copy of the array with all elements multiplied by a single constant value

Specified by:

multiplyCopy in interface INDArray

Overrides:

multiplyCopy in class AVector

Parameters:

d - A scalar factor

Returns:

A new array, with all element values scaled by the given factor

innerProduct

public AVector innerProduct(AMatrix m)

Description copied from class: AVector

Computes the inner product of this vector with a matrix

Overrides:

innerProduct in class AVector

Returns:

a vector representing the inner product

select

public AVector select(int... order)

Description copied from class: AVector

Selects a subset of indices from a vector

Overrides:

select in class AVector

Returns:

reciprocalCopy

public AVector reciprocalCopy()

Description copied from class: AVector

Computes the reciprocal of all elements in this vector. Mutates this vector

Specified by:

reciprocalCopy in interface INDArray

Overrides:

reciprocalCopy in class AVector

absCopy

public AVector absCopy()

Description copied from interface: INDArray

Returns a copy of the array with the abs operator applied to each element

Specified by:

absCopy in interface INDArray

Overrides:

absCopy in class AVector

Returns:

A new array containing the absolute element values

negateCopy

public AVector negateCopy()

Description copied from interface: INDArray

Negates all elements in the array, returning a new array

Specified by:

negateCopy in interface INDArray

Overrides:

negateCopy in class AVector

addCopy

public AVector addCopy(AVector v)

Description copied from interface: IVector

Adds a vector element-wise to this vector, returning a new vector.

Specified by:

addCopy in interface IVector

Overrides:

addCopy in class AVector

Returns:

multiplyCopy

public AVector multiplyCopy(AVector v)

Description copied from interface: IVector

Multiplies a vector element-wise with this vector, returning a new vector.

Specified by:

multiplyCopy in interface IVector

Overrides:

multiplyCopy in class AVector

Returns:

addCopy

public AVector addCopy(double v)

Description copied from interface: INDArray

Creates a new array equal to this array with a constant value added to every element

Specified by:

addCopy in interface INDArray

Overrides:

addCopy in class AVector

Returns:

addToArray

public void addToArray(double[] data,
                       int offset)

Description copied from class: AVector

Adds this vector to a double[] array, starting at the specified offset.

Specified by:

addToArray in interface INDArray

Overrides:

addToArray in class AVector

nonZeroCount

public long nonZeroCount()

Description copied from interface: INDArray

Returns the number of non-zero elements in the array.

Specified by:

nonZeroCount in interface INDArray

Overrides:

nonZeroCount in class AVector

set

public void set(int i,
                double value)

Description copied from interface: INDArray

Sets a value at a given position in a mutable 1D array

Specified by:

set in interface INDArray

Specified by:

set in interface IVector

Specified by:

set in class AVector

iterator

public java.util.Iterator<java.lang.Double> iterator()

Specified by:

iterator in interface java.lang.Iterable<java.lang.Double>

Overrides:

iterator in class AVector

subVector

public AVector subVector(int offset,
                         int length)

Description copied from class: AVector

Obtains a sub-vector view that refers to this vector. Changes to the sub-vector will be reflected in this vector

Overrides:

subVector in class AVector

tryEfficientJoin

public AVector tryEfficientJoin(AVector a)

Description copied from class: AVector

Attempts to perform an efficient join with a second vector. An efficient join is guaranteed to be better than a simple JoinedVector(left,right) If possible, returns the joined vector. If not, returns null

Overrides:

tryEfficientJoin in class AVector

exactClone

public RepeatedElementVector exactClone()

Description copied from class: AVector

Returns an exact clone of this vector, i.e. of the same type

Specified by:

exactClone in interface INDArray

Specified by:

exactClone in class AVector

Returns:

A clone of the original array

getElements

public void getElements(double[] dest,
                        int offset)

Description copied from interface: INDArray

Copies all elements of this array a double array at the specified offset

Specified by:

getElements in interface INDArray

Overrides:

getElements in class AVector

equals

public boolean equals(AVector v)

Description copied from class: AbstractArray

Returns true if this array is exactly equal to a vector.

Overrides:

equals in class AVector

Returns:

equalsArray

public boolean equalsArray(double[] data,
                           int offset)

Description copied from class: AVector

Returns true if this vector exactly matches the elements in double[] array, starting from the specified offset

Specified by:

equalsArray in interface INDArray

Overrides:

equalsArray in class ASizedVector

Parameters:

data - Array of double element values to check for equality

offset - Offset into the data array

Returns:

elementsEqual

public boolean elementsEqual(double value)

Description copied from interface: INDArray

Returns true if all elements are equal to a specific value

Specified by:

elementsEqual in interface INDArray

Overrides:

elementsEqual in class AVector

hasUncountable

public boolean hasUncountable()

Description copied from class: AbstractArray

Returns true if any element is this array is NaN or infinite

Specified by:

hasUncountable in interface INDArray

Overrides:

hasUncountable in class AVector

Returns:

True if any element is this array is NaN or infinite, false otherwise

elementPowSum

public double elementPowSum(double p)

Returns the sum of all the elements raised to a specified power

Specified by:

elementPowSum in interface INDArray

Overrides:

elementPowSum in class AVector

Returns:

elementAbsPowSum

public double elementAbsPowSum(double p)

Returns the sum of the absolute values of all the elements raised to a specified power

Specified by:

elementAbsPowSum in interface INDArray

Overrides:

elementAbsPowSum in class AVector

Returns: