Package io.github.hakkelt.ndarrays.internal

Class ViewOperations<T,T2 extends Number>

java.lang.Object

io.github.hakkelt.ndarrays.internal.ViewOperations<T,T2>

public class ViewOperations<T,T2 extends Number>
extends Object

Utility class for operations creating views: slice, permuteDims, reshape, mask, concatenate, selectDims, dropDims, squeeze.

Constructor Summary

Constructors

Constructor	Description
ViewOperations()

Method Summary

Modifier and Type	Method	Description
static void	checkDroppedDims(int ndim, int... droppedDims)
static void	checkSelectedDims(int ndim, int... selectedDims)
ComplexNDArray<T2>	dropDims(ComplexNDArray<T2> me, int... droppedDims)
NDArray<T>	dropDims(AbstractNDArray<T,T2> me, int... droppedDims)
static int[]	getIndicesOfSingletonDims(int... shape)
static List<Integer>	intArrayToList(int[] array)
static Set<Integer>	intArrayToSet(int[] array)
ComplexNDArray<T2>	internalSlice(ComplexNDArray<T2> me, NormalizedRange[] slicingExpressions)
NDArray<T2>	internalSlice(RealNDArray<T2> me, NormalizedRange[] slicingExpressions)
static boolean	isThisPermutationAnIdentityOperation(int... permutation)
static boolean	isThisReshapingAnIdentityOperation(int[] shape, int[] newShape)
static boolean	isThisSlicingAnIdentityOperation(NDArray<?> me, NormalizedRange[] slicingExpressions)
ComplexNDArray<T2>	mask(ComplexNDArray<T2> me, NDArray<?> mask, boolean isInverse)
ComplexNDArray<T2>	mask(ComplexNDArray<T2> me, BiPredicate<org.apache.commons.math3.complex.Complex,?> func, boolean withLinearIndices)
ComplexNDArray<T2>	mask(ComplexNDArray<T2> me, Predicate<org.apache.commons.math3.complex.Complex> func)
NDArray<T2>	mask(RealNDArray<T2> me, NDArray<?> mask, boolean isInverse)
NDArray<T2>	mask(RealNDArray<T2> me, BiPredicate<T2,?> func, boolean withLinearIndices)
NDArray<T2>	mask(RealNDArray<T2> me, Predicate<T2> func)
ComplexNDArray<T2>	permuteDims(ComplexNDArray<T2> me, int... permutation)
NDArray<T2>	permuteDims(RealNDArray<T2> me, int... permutation)
ComplexNDArray<T2>	reshape(ComplexNDArray<T2> me, int... newShape)
NDArray<T2>	reshape(RealNDArray<T2> me, int... newShape)
ComplexNDArray<T2>	selectDims(ComplexNDArray<T2> me, int... selectedDims)
NDArray<T>	selectDims(AbstractNDArray<T,T2> me, int... selectedDims)
static Object[]	selectedDimsToSlicingExpression(int[] shape, Set<Integer> selectedDims)
ComplexNDArray<T2>	slice(ComplexNDArray<T2> me, Object... slicingExpressions)
NDArray<T2>	slice(RealNDArray<T2> me, Object... slicingExpressions)
ComplexNDArray<T2>	squeeze(ComplexNDArray<T2> me)
NDArray<T>	squeeze(AbstractNDArray<T,T2> me)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

ViewOperations

public ViewOperations()

Method Detail

isThisSlicingAnIdentityOperation

public static boolean isThisSlicingAnIdentityOperation(NDArray<?> me,
                                                       NormalizedRange[] slicingExpressions)

isThisPermutationAnIdentityOperation

public static boolean isThisPermutationAnIdentityOperation(int... permutation)

isThisReshapingAnIdentityOperation

public static boolean isThisReshapingAnIdentityOperation(int[] shape,
                                                         int[] newShape)

checkSelectedDims

public static void checkSelectedDims(int ndim,
                                     int... selectedDims)

checkDroppedDims

public static void checkDroppedDims(int ndim,
                                    int... droppedDims)

getIndicesOfSingletonDims

public static int[] getIndicesOfSingletonDims(int... shape)

intArrayToSet

public static Set<Integer> intArrayToSet(int[] array)

intArrayToList

public static List<Integer> intArrayToList(int[] array)

selectedDimsToSlicingExpression

public static Object[] selectedDimsToSlicingExpression(int[] shape,
                                                       Set<Integer> selectedDims)

internalSlice

public NDArray<T2> internalSlice(RealNDArray<T2> me,
                                 NormalizedRange[] slicingExpressions)

internalSlice

public ComplexNDArray<T2> internalSlice(ComplexNDArray<T2> me,
                                        NormalizedRange[] slicingExpressions)

slice

public NDArray<T2> slice(RealNDArray<T2> me,
                         Object... slicingExpressions)

slice

public ComplexNDArray<T2> slice(ComplexNDArray<T2> me,
                                Object... slicingExpressions)

mask

public NDArray<T2> mask(RealNDArray<T2> me,
                        NDArray<?> mask,
                        boolean isInverse)

mask

public ComplexNDArray<T2> mask(ComplexNDArray<T2> me,
                               NDArray<?> mask,
                               boolean isInverse)

mask

public NDArray<T2> mask(RealNDArray<T2> me,
                        Predicate<T2> func)

mask

public ComplexNDArray<T2> mask(ComplexNDArray<T2> me,
                               Predicate<org.apache.commons.math3.complex.Complex> func)

mask

public NDArray<T2> mask(RealNDArray<T2> me,
                        BiPredicate<T2,?> func,
                        boolean withLinearIndices)

mask

public ComplexNDArray<T2> mask(ComplexNDArray<T2> me,
                               BiPredicate<org.apache.commons.math3.complex.Complex,?> func,
                               boolean withLinearIndices)

permuteDims

public NDArray<T2> permuteDims(RealNDArray<T2> me,
                               int... permutation)

permuteDims

public ComplexNDArray<T2> permuteDims(ComplexNDArray<T2> me,
                                      int... permutation)

reshape

public NDArray<T2> reshape(RealNDArray<T2> me,
                           int... newShape)

reshape

public ComplexNDArray<T2> reshape(ComplexNDArray<T2> me,
                                  int... newShape)

selectDims

public NDArray<T> selectDims(AbstractNDArray<T,T2> me,
                             int... selectedDims)

selectDims

public ComplexNDArray<T2> selectDims(ComplexNDArray<T2> me,
                                     int... selectedDims)

dropDims

public NDArray<T> dropDims(AbstractNDArray<T,T2> me,
                           int... droppedDims)

dropDims

public ComplexNDArray<T2> dropDims(ComplexNDArray<T2> me,
                                   int... droppedDims)

squeeze

public NDArray<T> squeeze(AbstractNDArray<T,T2> me)

squeeze

public ComplexNDArray<T2> squeeze(ComplexNDArray<T2> me)