com.landawn.abacus.util

Class LongMatrix

java.lang.Object

com.landawn.abacus.util.AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

com.landawn.abacus.util.LongMatrix

public final class LongMatrix
extends AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Since:

0.8

Author:

Haiyang Li

Field Summary

Fields inherited from class com.landawn.abacus.util.AbstractMatrix

cols, count, rows

Constructor Summary

Constructors

Constructor and Description
LongMatrix(long[][] a)

Method Summary

Modifier and Type	Method and Description
LongMatrix	add(LongMatrix b)
Stream<Pair.IntPair>	adjacent4Points(int i, int j) Returns the four adjacencies with order: up, right, down, left.
Stream<Pair.IntPair>	adjacent8Points(int i, int j) Returns the eight adjacencies with order: left-up, up, right-up, right, right-down, down, left-down, left.
long[][]	array()
Matrix<java.lang.Long>	boxed()
long[]	column(int columnIndex)
LongMatrix	copy()
LongMatrix	copy(int fromRowIndex, int toRowIndex)
LongMatrix	copy(int fromRowIndex, int toRowIndex, int fromColumnIndex, int toColumnIndex)
static LongMatrix	diagonal(long[] leftUp2RighDownDiagonal, long[] rightUp2LeftDownDiagonal)
static LongMatrix	diagonalLU2RD(long[] leftUp2RighDownDiagonal)
static LongMatrix	diagonalRU2LD(long[] rightUp2LeftDownDiagonal)
OptionalLong	downOf(int i, int j)
static LongMatrix	empty()
boolean	equals(java.lang.Object obj)
void	fill(int fromRowIndex, int fromColumnIndex, long[][] b)
void	fill(long val)
void	fill(long[][] b)
LongList	flatten()
LongMatrix	flipH()
LongMatrix	flipV()
void	forEach(int fromRowIndex, int toRowIndex, int fromColumnIndex, int toColumnIndex, LongConsumer action)
void	forEach(LongConsumer action)
static LongMatrix	from(int[]... a)
long	get(int i, int j)
long	get(Pair.IntPair point)
long[]	getLU2RD()
long[]	getRU2LD()
int	hashCode()
LongMatrix	hstack(LongMatrix b)
OptionalLong	leftOf(int i, int j)
LongMatrix	map(LongUnaryOperator func)
<T> Matrix<T>	mapToObj(java.lang.Class<T> cls, LongFunction<? extends T> func)
LongMatrix	multiply(LongMatrix b)
static LongMatrix	of(long[]... a)
static LongMatrix	random(int len)
static LongMatrix	range(long startInclusive, long endExclusive)
static LongMatrix	range(long startInclusive, long endExclusive, long by)
static LongMatrix	rangeClosed(long startInclusive, long endInclusive)
static LongMatrix	rangeClosed(long startInclusive, long endInclusive, long by)
static LongMatrix	repeat(long val, int len)
LongMatrix	repelem(int rowRepeats, int colRepeats) Repeat elements rowRepeats times in row direction and colRepeats times in column direction.
void	replaceIf(IntBiPredicate predicate, long newValue) Replace elements by Predicate.test(i, j) based on points
void	replaceIf(LongPredicate predicate, long newValue)
LongMatrix	repmat(int rowRepeats, int colRepeats) Repeat this matrix rowRepeats times in row direction and colRepeats times in column direction.
LongMatrix	reshape(int newRows, int newCols)
void	reverseH()
void	reverseV()
OptionalLong	rightOf(int i, int j)
LongMatrix	rotate180() Rotate this matrix clockwise 180
LongMatrix	rotate270() Rotate this matrix clockwise 270
LongMatrix	rotate90() Rotate this matrix clockwise 90
long[]	row(int rowIndex)
void	set(int i, int j, long val)
void	set(Pair.IntPair point, long val)
void	setColumn(int columnIndex, long[] column)
void	setLU2RD(long[] diagonal)
void	setRow(int rowIndex, long[] row)
void	setRU2LD(long[] diagonal)
Stream<LongStream>	streamC()
Stream<LongStream>	streamC(int fromColumnIndex, int toColumnIndex)
LongStream	streamH()
LongStream	streamH(int rowIndex)
LongStream	streamH(int fromRowIndex, int toRowIndex)
LongStream	streamLU2RD()
Stream<LongStream>	streamR()
Stream<LongStream>	streamR(int fromRowIndex, int toRowIndex)
LongStream	streamRU2LD()
LongStream	streamV()
LongStream	streamV(int columnIndex)
LongStream	streamV(int fromColumnIndex, int toColumnIndex)
LongMatrix	subtract(LongMatrix b)
DoubleMatrix	toDoubleMatrix()
FloatMatrix	toFloatMatrix()
java.lang.String	toString()
LongMatrix	transpose()
void	updateAll(IntBiFunction<java.lang.Long> func) Update all elements based on points
void	updateAll(LongUnaryOperator func)
void	updateColumn(int columnIndex, LongUnaryOperator func)
void	updateLU2RD(LongUnaryOperator func)
void	updateRow(int rowIndex, LongUnaryOperator func)
void	updateRU2LD(LongUnaryOperator func)
OptionalLong	upOf(int i, int j)
LongMatrix	vstack(LongMatrix b)
LongMatrix	zipWith(LongMatrix matrixB, LongBiFunction<java.lang.Long> zipFunction)
LongMatrix	zipWith(LongMatrix matrixB, LongMatrix matrixC, LongTriFunction<java.lang.Long> zipFunction)

Methods inherited from class com.landawn.abacus.util.AbstractMatrix

isEmpty, isSameShape, pointsC, pointsC, pointsH, pointsH, pointsH, pointsLU2RD, pointsR, pointsR, pointsRU2LD, pointsV, pointsV, pointsV, println, reshape

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

LongMatrix

public LongMatrix(long[][] a)

Method Detail

empty

public static LongMatrix empty()

of

@SafeVarargs
public static LongMatrix of(long[]... a)

from

@SafeVarargs
public static LongMatrix from(int[]... a)

random

public static LongMatrix random(int len)

repeat

public static LongMatrix repeat(long val,
                                int len)

range

public static LongMatrix range(long startInclusive,
                               long endExclusive)

range

public static LongMatrix range(long startInclusive,
                               long endExclusive,
                               long by)

rangeClosed

public static LongMatrix rangeClosed(long startInclusive,
                                     long endInclusive)

rangeClosed

public static LongMatrix rangeClosed(long startInclusive,
                                     long endInclusive,
                                     long by)

diagonalLU2RD

public static LongMatrix diagonalLU2RD(long[] leftUp2RighDownDiagonal)

diagonalRU2LD

public static LongMatrix diagonalRU2LD(long[] rightUp2LeftDownDiagonal)

diagonal

public static LongMatrix diagonal(long[] leftUp2RighDownDiagonal,
                                  long[] rightUp2LeftDownDiagonal)

array

public long[][] array()

get

public long get(int i,
                int j)

get

public long get(Pair.IntPair point)

set

public void set(int i,
                int j,
                long val)

set

public void set(Pair.IntPair point,
                long val)

upOf

public OptionalLong upOf(int i,
                         int j)

downOf

public OptionalLong downOf(int i,
                           int j)

leftOf

public OptionalLong leftOf(int i,
                           int j)

rightOf

public OptionalLong rightOf(int i,
                            int j)

adjacent4Points

public Stream<Pair.IntPair> adjacent4Points(int i,
                                            int j)

Returns the four adjacencies with order: up, right, down, left. null is set if the adjacency doesn't exist.

Parameters:

i -

j -

Returns:

adjacent8Points

public Stream<Pair.IntPair> adjacent8Points(int i,
                                            int j)

Returns the eight adjacencies with order: left-up, up, right-up, right, right-down, down, left-down, left. null is set if the adjacency doesn't exist.

Parameters:

i -

j -

Returns:

row

public long[] row(int rowIndex)

column

public long[] column(int columnIndex)

setRow

public void setRow(int rowIndex,
                   long[] row)

setColumn

public void setColumn(int columnIndex,
                      long[] column)

updateRow

public void updateRow(int rowIndex,
                      LongUnaryOperator func)

updateColumn

public void updateColumn(int columnIndex,
                         LongUnaryOperator func)

getLU2RD

public long[] getLU2RD()

setLU2RD

public void setLU2RD(long[] diagonal)

updateLU2RD

public void updateLU2RD(LongUnaryOperator func)

getRU2LD

public long[] getRU2LD()

setRU2LD

public void setRU2LD(long[] diagonal)

updateRU2LD

public void updateRU2LD(LongUnaryOperator func)

updateAll

public void updateAll(LongUnaryOperator func)

updateAll

public void updateAll(IntBiFunction<java.lang.Long> func)

Update all elements based on points

Parameters:

func -

replaceIf

public void replaceIf(LongPredicate predicate,
                      long newValue)

replaceIf

public void replaceIf(IntBiPredicate predicate,
                      long newValue)

Replace elements by Predicate.test(i, j) based on points

Parameters:

predicate -

newValue -

map

public LongMatrix map(LongUnaryOperator func)

mapToObj

public <T> Matrix<T> mapToObj(java.lang.Class<T> cls,
                              LongFunction<? extends T> func)

fill

public void fill(long val)

fill

public void fill(long[][] b)

fill

public void fill(int fromRowIndex,
                 int fromColumnIndex,
                 long[][] b)

copy

public LongMatrix copy()

Specified by:

copy in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a new Matrix

copy

public LongMatrix copy(int fromRowIndex,
                       int toRowIndex)

Specified by:

copy in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a new Matrix

copy

public LongMatrix copy(int fromRowIndex,
                       int toRowIndex,
                       int fromColumnIndex,
                       int toColumnIndex)

Specified by:

copy in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a new Matrix

reverseH

public void reverseH()

reverseV

public void reverseV()

flipH

public LongMatrix flipH()

flipV

public LongMatrix flipV()

rotate90

public LongMatrix rotate90()

Description copied from class: AbstractMatrix

Rotate this matrix clockwise 90

Specified by:

rotate90 in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a new Matrix

rotate180

public LongMatrix rotate180()

Description copied from class: AbstractMatrix

Rotate this matrix clockwise 180

Specified by:

rotate180 in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a new Matrix

rotate270

public LongMatrix rotate270()

Description copied from class: AbstractMatrix

Rotate this matrix clockwise 270

Specified by:

rotate270 in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a new Matrix

transpose

public LongMatrix transpose()

Specified by:

transpose in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

reshape

public LongMatrix reshape(int newRows,
                          int newCols)

Specified by:

reshape in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

repelem

public LongMatrix repelem(int rowRepeats,
                          int colRepeats)

Repeat elements rowRepeats times in row direction and colRepeats times in column direction.

Specified by:

repelem in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Parameters:

rowRepeats -

colRepeats -

Returns:

a new matrix

repmat

public LongMatrix repmat(int rowRepeats,
                         int colRepeats)

Repeat this matrix rowRepeats times in row direction and colRepeats times in column direction.

Specified by:

repmat in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Parameters:

rowRepeats -

colRepeats -

Returns:

a new matrix

flatten

public LongList flatten()

Specified by:

flatten in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

vstack

public LongMatrix vstack(LongMatrix b)

Parameters:

b -

Returns:

See Also:

IntMatrix.vstack(IntMatrix)

hstack

public LongMatrix hstack(LongMatrix b)

Parameters:

b -

Returns:

See Also:

IntMatrix.hstack(IntMatrix)

add

public LongMatrix add(LongMatrix b)

subtract

public LongMatrix subtract(LongMatrix b)

multiply

public LongMatrix multiply(LongMatrix b)

boxed

public Matrix<java.lang.Long> boxed()

toFloatMatrix

public FloatMatrix toFloatMatrix()

toDoubleMatrix

public DoubleMatrix toDoubleMatrix()

zipWith

public LongMatrix zipWith(LongMatrix matrixB,
                          LongBiFunction<java.lang.Long> zipFunction)

zipWith

public LongMatrix zipWith(LongMatrix matrixB,
                          LongMatrix matrixC,
                          LongTriFunction<java.lang.Long> zipFunction)

streamLU2RD

public LongStream streamLU2RD()

Specified by:

streamLU2RD in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a stream composed by elements on the diagonal line from left up to right down.

streamRU2LD

public LongStream streamRU2LD()

Specified by:

streamRU2LD in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a stream composed by elements on the diagonal line from right up to left down.

streamH

public LongStream streamH()

Specified by:

streamH in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a stream based on the order of row.

streamH

public LongStream streamH(int rowIndex)

Specified by:

streamH in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

streamH

public LongStream streamH(int fromRowIndex,
                          int toRowIndex)

Specified by:

streamH in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Parameters:

fromRowIndex -

toRowIndex -

Returns:

a stream based on the order of row.

streamV

@Beta
public LongStream streamV()

Specified by:

streamV in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a stream based on the order of column.

streamV

public LongStream streamV(int columnIndex)

Specified by:

streamV in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

streamV

@Beta
public LongStream streamV(int fromColumnIndex,
                                 int toColumnIndex)

Specified by:

streamV in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Parameters:

fromColumnIndex -

toColumnIndex -

Returns:

a stream based on the order of column.

streamR

public Stream<LongStream> streamR()

Specified by:

streamR in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a row stream based on the order of row.

streamR

public Stream<LongStream> streamR(int fromRowIndex,
                                  int toRowIndex)

Specified by:

streamR in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Parameters:

fromRowIndex -

toRowIndex -

Returns:

a row stream based on the order of row.

streamC

@Beta
public Stream<LongStream> streamC()

Specified by:

streamC in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Returns:

a column stream based on the order of column.

streamC

@Beta
public Stream<LongStream> streamC(int fromColumnIndex,
                                         int toColumnIndex)

Specified by:

streamC in class AbstractMatrix<long[],LongList,LongStream,Stream<LongStream>,LongMatrix>

Parameters:

fromColumnIndex -

toColumnIndex -

Returns:

a column stream based on the order of column.

forEach

public void forEach(LongConsumer action)

forEach

public void forEach(int fromRowIndex,
                    int toRowIndex,
                    int fromColumnIndex,
                    int toColumnIndex,
                    LongConsumer action)

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object