com.landawn.abacus.util

Class AbstractMatrix<A,PL,ES,RS,X extends AbstractMatrix<A,PL,ES,RS,X>>

java.lang.Object

com.landawn.abacus.util.AbstractMatrix<A,PL,ES,RS,X>

Type Parameters:

A -

PL -

ES - element stream

RS - row/column stream.

X -

Direct Known Subclasses:

BooleanMatrix, ByteMatrix, CharMatrix, DoubleMatrix, FloatMatrix, IntMatrix, LongMatrix, Matrix, ShortMatrix

public abstract class AbstractMatrix<A,PL,ES,RS,X extends AbstractMatrix<A,PL,ES,RS,X>>
extends java.lang.Object

Since:

0.8

Author:

Haiyang Li

Field Summary

Fields

Modifier and Type	Field and Description
int	cols Column length.
long	count
int	rows Row length.

Method Summary

Modifier and Type	Method and Description
A[]	array()
abstract X	copy()
abstract X	copy(int fromRowIndex, int toRowIndex)
abstract X	copy(int fromRowIndex, int toRowIndex, int fromColumnIndex, int toColumnIndex)
abstract PL	flatten()
<E extends java.lang.Exception> void	forEach(Try.IntBiConsumer<E> action) for (int i = 0; i < rows; i++) { for (int j = 0; j < cols; j++) { action.accept(i, j); } }
boolean	isEmpty()
boolean	isSameShape(X x)
Stream<Stream<IntPair>>	pointsC()
Stream<Stream<IntPair>>	pointsC(int fromColumnIndex, int toColumnIndex)
Stream<IntPair>	pointsH()
Stream<IntPair>	pointsH(int rowIndex)
Stream<IntPair>	pointsH(int fromRowIndex, int toRowIndex)
Stream<IntPair>	pointsLU2RD()
Stream<Stream<IntPair>>	pointsR()
Stream<Stream<IntPair>>	pointsR(int fromRowIndex, int toRowIndex)
Stream<IntPair>	pointsRU2LD()
Stream<IntPair>	pointsV()
Stream<IntPair>	pointsV(int columnIndex)
Stream<IntPair>	pointsV(int fromColumnIndex, int toColumnIndex)
void	println()
abstract X	repelem(int rowRepeats, int colRepeats) Repeat elements rowRepeats times in row direction and colRepeats times in column direction.
abstract X	repmat(int rowRepeats, int colRepeats) Repeat this matrix rowRepeats times in row direction and colRepeats times in column direction.
X	reshape(int newCols)
abstract X	reshape(int newRows, int newCols)
abstract X	rotate180() Rotate this matrix clockwise 180
abstract X	rotate270() Rotate this matrix clockwise 270
abstract X	rotate90() Rotate this matrix clockwise 90
abstract RS	streamC()
abstract RS	streamC(int fromColumnIndex, int toColumnIndex)
abstract ES	streamH()
abstract ES	streamH(int rowIndex)
abstract ES	streamH(int fromRowIndex, int toRowIndex)
abstract ES	streamLU2RD()
abstract RS	streamR()
abstract RS	streamR(int fromRowIndex, int toRowIndex)
abstract ES	streamRU2LD()
abstract ES	streamV()
abstract ES	streamV(int columnIndex)
abstract ES	streamV(int fromColumnIndex, int toColumnIndex)
abstract X	transpose()

Methods inherited from class java.lang.Object

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

Field Detail

rows

public final int rows

Row length.

cols

public final int cols

Column length.

count

public final long count

Method Detail

array

public A[] array()

println

public void println()

isEmpty

public boolean isEmpty()

copy

public abstract X copy()

Returns:

a new Matrix

copy

public abstract X copy(int fromRowIndex,
                       int toRowIndex)

Parameters:

fromRowIndex -

toRowIndex -

Returns:

a new Matrix

copy

public abstract X copy(int fromRowIndex,
                       int toRowIndex,
                       int fromColumnIndex,
                       int toColumnIndex)

Parameters:

fromRowIndex -

toRowIndex -

fromColumnIndex -

toColumnIndex -

Returns:

a new Matrix

rotate90

public abstract X rotate90()

Rotate this matrix clockwise 90

Returns:

a new Matrix

rotate180

public abstract X rotate180()

Rotate this matrix clockwise 180

Returns:

a new Matrix

rotate270

public abstract X rotate270()

Rotate this matrix clockwise 270

Returns:

a new Matrix

transpose

public abstract X transpose()

reshape

public X reshape(int newCols)

reshape

public abstract X reshape(int newRows,
                          int newCols)

isSameShape

public boolean isSameShape(X x)

repelem

public abstract X repelem(int rowRepeats,
                          int colRepeats)

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

Parameters:

rowRepeats -

colRepeats -

Returns:

a new matrix

See Also:

https://www.mathworks.com/help/matlab/ref/repelem.html

repmat

public abstract X repmat(int rowRepeats,
                         int colRepeats)

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

Parameters:

rowRepeats -

colRepeats -

Returns:

a new matrix

See Also:

https://www.mathworks.com/help/matlab/ref/repmat.html

flatten

public abstract PL flatten()

forEach

public <E extends java.lang.Exception> void forEach(Try.IntBiConsumer<E> action)
                                             throws E extends java.lang.Exception

 
 for (int i = 0; i < rows; i++) {
      for (int j = 0; j < cols; j++) {
          action.accept(i, j);
      }
  }
 
 

Parameters:

action -

Throws:

E

E extends java.lang.Exception

pointsLU2RD

public Stream<IntPair> pointsLU2RD()

pointsRU2LD

public Stream<IntPair> pointsRU2LD()

pointsH

public Stream<IntPair> pointsH()

pointsH

public Stream<IntPair> pointsH(int rowIndex)

pointsH

public Stream<IntPair> pointsH(int fromRowIndex,
                               int toRowIndex)

pointsV

public Stream<IntPair> pointsV()

pointsV

public Stream<IntPair> pointsV(int columnIndex)

pointsV

public Stream<IntPair> pointsV(int fromColumnIndex,
                               int toColumnIndex)

pointsR

public Stream<Stream<IntPair>> pointsR()

pointsR

public Stream<Stream<IntPair>> pointsR(int fromRowIndex,
                                       int toRowIndex)

pointsC

public Stream<Stream<IntPair>> pointsC()

pointsC

public Stream<Stream<IntPair>> pointsC(int fromColumnIndex,
                                       int toColumnIndex)

streamLU2RD

public abstract ES streamLU2RD()

streamRU2LD

public abstract ES streamRU2LD()

streamH

public abstract ES streamH()

streamH

public abstract ES streamH(int rowIndex)

streamH

public abstract ES streamH(int fromRowIndex,
                           int toRowIndex)

streamV

public abstract ES streamV()

streamV

public abstract ES streamV(int columnIndex)

streamV

public abstract ES streamV(int fromColumnIndex,
                           int toColumnIndex)

streamR

public abstract RS streamR()

streamR

public abstract RS streamR(int fromRowIndex,
                           int toRowIndex)

streamC

public abstract RS streamC()

streamC

public abstract RS streamC(int fromColumnIndex,
                           int toColumnIndex)