Package org.ejml.data

Class CMatrixRMaj

java.lang.Object

org.ejml.data.CMatrixD1

org.ejml.data.CMatrixRMaj

All Implemented Interfaces:

java.io.Serializable, CMatrix, Matrix, ReshapeMatrix

public class CMatrixRMaj
extends CMatrixD1

Dense matrix for complex numbers. Internally it stores its data in a single row-major array with the real and imaginary components interlaces, in that order. The total number of elements in the array will be numRows*numColumns*2.

See Also:

Serialized Form

Field Summary

Fields inherited from class org.ejml.data.CMatrixD1

data, numCols, numRows

Constructor Summary

Constructors

Constructor	Description
CMatrixRMaj(float[][] data)	Creates a matrix with the values and shape defined by the 2D array 'data'.
CMatrixRMaj(int numRows, int numCols)	Creates a new matrix with the specified number of rows and columns
CMatrixRMaj(int numRows, int numCols, boolean rowMajor, float... data)
CMatrixRMaj(CMatrixRMaj original)	Creates a new CMatrixRMaj which is a copy of the passed in matrix.

Method Summary

Modifier and Type	Method	Description
CMatrixRMaj	copy()	Creates an exact copy of the matrix
CMatrixRMaj	create(int numRows, int numCols)	Creates a new matrix of the same type with the specified shape
CMatrixRMaj	createLike()	Creates a new matrix with the same shape as this matrix
void	get(int row, int col, Complex_F32 output)	Returns the complex value of the matrix's element
int	getDataLength()	Returns the number of elements in the internal data array
float	getImag(int element)
float	getImag(int row, int col)	Returns the imaginary component of the matrix's element.
int	getIndex(int row, int col)	Returns the internal array index for the specified row and column.
float	getReal(int element)
float	getReal(int row, int col)	Returns the real component of the matrix's element.
int	getRowStride()	Number of array elements in the matrix's row.
MatrixType	getType()	Returns the type of matrix
void	print()	Prints the matrix to standard out using standard formatting.
void	print(java.lang.String format)	Prints the matrix to standard out with the specified formatting.
void	reshape(int numRows, int numCols)	Equivalent to invoking reshape(numRows,numCols,false);
void	set(int numRows, int numCols, boolean rowMajor, float... data)	Sets this matrix equal to the matrix encoded in the array.
void	set(int row, int col, float real, float imaginary)	Set's the complex value of the matrix's element
void	set(CMatrixRMaj original)
void	set(Matrix original)	Sets this matrix to be identical to the 'original' matrix passed in.
void	setImag(int row, int col, float val)	Sets the imaginary component of the matrix's element.
void	setReal(int row, int col, float val)	Sets the real component of the matrix's element.
void	zero()	Sets all the elements in the matrix to zero

Methods inherited from class org.ejml.data.CMatrixD1

getData, getNumCols, getNumElements, getNumRows, set, setData, setNumCols, setNumRows

Methods inherited from class java.lang.Object

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

Constructor Detail

CMatrixRMaj

public CMatrixRMaj(float[][] data)

Creates a matrix with the values and shape defined by the 2D array 'data'. It is assumed that 'data' has a row-major formatting:

data[ row ][ column ]

Parameters:

data - 2D array representation of the matrix. Not modified.

CMatrixRMaj

public CMatrixRMaj(int numRows,
                   int numCols,
                   boolean rowMajor,
                   float... data)

CMatrixRMaj

public CMatrixRMaj(CMatrixRMaj original)

Creates a new CMatrixRMaj which is a copy of the passed in matrix.

Parameters:

original - Matrix which is to be copied

CMatrixRMaj

public CMatrixRMaj(int numRows,
                   int numCols)

Creates a new matrix with the specified number of rows and columns

Parameters:

numRows - number of rows

numCols - number of columns

Method Detail

getIndex

public int getIndex(int row,
                    int col)

Description copied from class: CMatrixD1

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

Specified by:

getIndex in class CMatrixD1

Parameters:

row - Row index.

col - Column index.

Returns:

Internal array index.

reshape

public void reshape(int numRows,
                    int numCols)

Description copied from interface: ReshapeMatrix

Equivalent to invoking reshape(numRows,numCols,false);

Parameters:

numRows - The new number of rows in the matrix.

numCols - The new number of columns in the matrix.

get

public void get(int row,
                int col,
                Complex_F32 output)

Description copied from interface: CMatrix

Returns the complex value of the matrix's element

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

output - Storage for the complex number

set

public void set(int row,
                int col,
                float real,
                float imaginary)

Description copied from interface: CMatrix

Set's the complex value of the matrix's element

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

real - The real component

imaginary - The imaginary component

getReal

public float getReal(int element)

getImag

public float getImag(int element)

getReal

public float getReal(int row,
                     int col)

Description copied from interface: CMatrix

Returns the real component of the matrix's element.

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

Returns:

The specified element's value.

setReal

public void setReal(int row,
                    int col,
                    float val)

Description copied from interface: CMatrix

Sets the real component of the matrix's element.

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

val - The element's new value.

getImag

public float getImag(int row,
                     int col)

Description copied from interface: CMatrix

Returns the imaginary component of the matrix's element.

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

Returns:

The specified element's value.

setImag

public void setImag(int row,
                    int col,
                    float val)

Description copied from interface: CMatrix

Sets the imaginary component of the matrix's element.

Parameters:

row - Matrix element's row index..

col - Matrix element's column index.

val - The element's new value.

getDataLength

public int getDataLength()

Description copied from interface: CMatrix

Returns the number of elements in the internal data array

Returns:

Number of elements in the data array.

set

public void set(CMatrixRMaj original)

copy

public CMatrixRMaj copy()

Description copied from interface: Matrix

Creates an exact copy of the matrix

set

public void set(Matrix original)

Description copied from interface: Matrix

Sets this matrix to be identical to the 'original' matrix passed in.

print

public void print()

Description copied from interface: Matrix

Prints the matrix to standard out using standard formatting. This is the same as calling print("%e")

print

public void print(java.lang.String format)

Description copied from interface: Matrix

Prints the matrix to standard out with the specified formatting.

Parameters:

format - printf style formatting for a float. E.g. "%f"

See Also:

Formatter

getRowStride

public int getRowStride()

Number of array elements in the matrix's row.

set

public void set(int numRows,
                int numCols,
                boolean rowMajor,
                float... data)

Sets this matrix equal to the matrix encoded in the array.

Parameters:

numRows - The number of rows.

numCols - The number of columns.

rowMajor - If the array is encoded in a row-major or a column-major format.

data - The formatted 1D array. Not modified.

zero

public void zero()

Sets all the elements in the matrix to zero

createLike

public CMatrixRMaj createLike()

Description copied from interface: Matrix

Creates a new matrix with the same shape as this matrix

create

public CMatrixRMaj create(int numRows,
                          int numCols)

Description copied from interface: Matrix

Creates a new matrix of the same type with the specified shape

getType

public MatrixType getType()

Description copied from interface: Matrix

Returns the type of matrix