mikera.arrayz.impl

Class BaseShapedArray

java.lang.Object

mikera.arrayz.impl.AbstractArray<INDArray>

mikera.arrayz.impl.BaseShapedArray

All Implemented Interfaces:

Serializable, Cloneable, Iterable<INDArray>, INDArray

Direct Known Subclasses:

Array, BaseNDArray, BroadcastScalarArray, JoinedArray, SliceArray, ZeroArray

public abstract class BaseShapedArray
extends AbstractArray<INDArray>

Abstract base class for N-dimensional arrays that use a fixed int[] shape vector. Any dimensionality (including 0) is supported.

Author:

Mike

See Also:

Serialized Form

Field Summary

Fields

Modifier and Type	Field and Description
protected int[]	shape

Constructor Summary

Constructors

Constructor and Description
BaseShapedArray(int[] shape)

Method Summary

Modifier and Type	Method and Description
int	dimensionality() Returns the dimensionality of the array (i.e.
long	elementCount() Returns the total number of elements in this array.
int[]	getShape() Returns the shape of the array as an array of ints.
int	getShape(int dim) Returns the dimension size for a specific dimension in the array's shape
int[]	getShapeClone() Returns the shape of the array as an array of ints, guaranteed to be a new array i.e.
boolean	isZero() Returns true if the array is zero (all elements equal to zero)
double	reduce(Op2 op) Reduces over all elements of the array in row-major order.
double	reduce(Op2 op, double init) Reduces over all elements of the array in row-major order.
int	sliceCount() Returns the number of major slices in this array (i.e.

Methods inherited from class mikera.arrayz.impl.AbstractArray

abs, absCopy, add, add, add, addAt, addCopy, addCopy, addInnerProduct, addInnerProduct, addInnerProduct, addMultiple, addOuterProduct, addPower, addPower, addToArray, applyOp, applyOp, applyOp, applyOp, applyOpCopy, asDoubleArray, asElementList, asVector, broadcast, broadcastCloneLike, broadcastCopyLike, broadcastLike, broadcastLike, broadcastLike, checkDimension, checkMutable, clamp, clone, componentCount, copy, dense, denseClone, density, divide, divide, divideCopy, elementAbsPowSum, elementIterator, elementMax, elementMin, elementPowSum, elementProduct, elementsEqual, elementSquaredSum, elementSum, ensureMutable, epsilonEquals, epsilonEquals, equals, equals, equals, equalsArray, equalsArray, exp, fill, get, get, get, get, get, get, get, get, getComponent, getComponents, getElements, getElements, getElements, getElements, getLongShape, getSlices, getSlices, getSliceViews, getTranspose, getTransposeCopy, getTransposeView, hashCode, hasUncountable, immutable, innerProduct, innerProduct, innerProduct, innerProduct, isBoolean, isDense, isElementConstrained, isFullyMutable, isMutable, isSameShape, isSparse, iterator, join, join, log, multiply, multiply, multiplyCopy, multiplyCopy, mutable, negate, negateCopy, nonZeroCount, outerProduct, pow, reciprocal, reciprocalCopy, reduceSlices, reduceSlices, reorder, reorder, reshape, rotateView, scale, scaleAdd, scaleAdd, scaleCopy, set, set, set, set, set, set, setElements, setElements, setElements, setInnerProduct, setMultiple, setMultiple, signum, signumCopy, sliceValue, sparse, sparseClone, sqrt, square, squareCopy, sub, sub, sub, subArray, subCopy, toArray, toDoubleArray, toDoubleBuffer, toSliceArray, toString, toStringFull, toVector, validate, withComponents

Methods inherited from class java.lang.Object

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

Methods inherited from interface mikera.arrayz.INDArray

exactClone, get, isView, set, slice, slice

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

shape

protected final int[] shape

Constructor Detail

BaseShapedArray

public BaseShapedArray(int[] shape)

Method Detail

dimensionality

public int dimensionality()

Description copied from interface: INDArray

Returns the dimensionality of the array (i.e. the number of dimensions in the array shape) e.g. 0 for a scalar, 1 for a vector, 2 for a matrix etc.

getShape

public int[] getShape()

Description copied from interface: INDArray

Returns the shape of the array as an array of ints. WARNING: May return the internal int[] array describing the shape. Modifying this may cause undefined behaviour. If you want to guarantee a new int[] array that can be safely modified, use getShapeClone() instead

getShapeClone

public int[] getShapeClone()

Description copied from interface: INDArray

Returns the shape of the array as an array of ints, guaranteed to be a new array i.e. will perform a defensive copy of any internal shape array if required.

Specified by:

getShapeClone in interface INDArray

Overrides:

getShapeClone in class AbstractArray<INDArray>

sliceCount

public int sliceCount()

Description copied from interface: INDArray

Returns the number of major slices in this array (i.e. the size of dimension 0)

reduce

public double reduce(Op2 op,
                     double init)

Description copied from interface: INDArray

Reduces over all elements of the array in row-major order. Applies the operator to the initial/previous result at each step. Returns the final result.

Specified by:

reduce in interface INDArray

Overrides:

reduce in class AbstractArray<INDArray>

reduce

public double reduce(Op2 op)

Description copied from interface: INDArray

Reduces over all elements of the array in row-major order. Applies the operator to the previous result at each step. Returns the final result.

Specified by:

reduce in interface INDArray

Overrides:

reduce in class AbstractArray<INDArray>

isZero

public boolean isZero()

Description copied from interface: INDArray

Returns true if the array is zero (all elements equal to zero)

Specified by:

isZero in interface INDArray

Overrides:

isZero in class AbstractArray<INDArray>

getShape

public int getShape(int dim)

Description copied from interface: INDArray

Returns the dimension size for a specific dimension in the array's shape

Specified by:

getShape in interface INDArray

Overrides:

getShape in class AbstractArray<INDArray>

elementCount

public long elementCount()

Description copied from interface: INDArray

Returns the total number of elements in this array. Equivalent to the product all dimension sizes.