Package org.ejml.data

Class ZMatrixD1

java.lang.Object

org.ejml.data.ZMatrixD1

All Implemented Interfaces:

Serializable, Matrix, ReshapeMatrix, ZMatrix

Direct Known Subclasses:

ZMatrixRMaj

public abstract class ZMatrixD1
extends Object
implements ZMatrix, ReshapeMatrix

A generic abstract class for matrices whose data is stored in a single 1D array of doubles. The format of the elements in this array is not specified. For example row major, column major, and block row major are all common formats.

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
double[]	data	Where the raw data for the matrix is stored.
int	numCols	Number of columns in the matrix.
int	numRows	Number of rows in the matrix.

Constructor Summary

Constructors

Constructor	Description
ZMatrixD1()

Method Summary

Modifier and Type	Method	Description
protected void	assignShape(int rows, int cols)	Sets the matrix's shape while checking that it's valid
double[]	getData()	Used to get a reference to the internal data.
abstract int	getIndex(int row, int col)	Returns the internal array index for the specified row and column.
int	getNumCols()	Returns the number of columns in this matrix.
int	getNumElements()
int	getNumRows()	Returns the number of rows in this matrix.
void	setData(double[] data)	Changes the internal array reference.
void	setNumCols(int numCols)	Sets the number of columns.
void	setNumRows(int numRows)	Sets the number of rows.
void	setTo(ZMatrixD1 b)	Sets the value of this matrix to be the same as the value of the provided matrix.

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.ejml.data.Matrix

copy, create, createLike, getType, print, print, setTo, zero

Methods inherited from interface org.ejml.data.ReshapeMatrix

reshape

Methods inherited from interface org.ejml.data.ZMatrix

get, getDataLength, getImag, getReal, set, setImag, setReal

Field Details

data

public double[] data

Where the raw data for the matrix is stored. The format is type dependent.

numRows

public int numRows

Number of rows in the matrix.

numCols

public int numCols

Number of columns in the matrix.

Constructor Details

ZMatrixD1

public ZMatrixD1()

Method Details

assignShape

protected void assignShape(int rows,
 int cols)

Sets the matrix's shape while checking that it's valid

getData

public double[] getData()

Used to get a reference to the internal data.

Returns:

Reference to the matrix's data.

setData

public void setData(double[] data)

Changes the internal array reference.

getIndex

public abstract int getIndex(int row,
 int col)

Returns the internal array index for the specified row and column.

Parameters:

row - Row index.

col - Column index.

Returns:

Internal array index.

setTo

public void setTo(ZMatrixD1 b)

Sets the value of this matrix to be the same as the value of the provided matrix. Both matrices must have the same shape:

a_ij = b_ij

Parameters:

b - The matrix that this matrix is to be set equal to.

getNumRows

public int getNumRows()

Returns the number of rows in this matrix.

Specified by:

getNumRows in interface Matrix

Returns:

Number of rows.

getNumCols

public int getNumCols()

Returns the number of columns in this matrix.

Specified by:

getNumCols in interface Matrix

Returns:

Number of columns.

setNumRows

public void setNumRows(int numRows)

Sets the number of rows.

Parameters:

numRows - Number of rows

setNumCols

public void setNumCols(int numCols)

Sets the number of columns.

Parameters:

numCols - Number of columns

getNumElements

public int getNumElements()