public class FMatrixRBlock extends FMatrixD1
Modifier and Type | Field and Description |
---|---|
int |
blockLength |
Constructor and Description |
---|
FMatrixRBlock() |
FMatrixRBlock(int numRows,
int numCols) |
FMatrixRBlock(int numRows,
int numCols,
int blockLength) |
Modifier and Type | Method and Description |
---|---|
FMatrixRBlock |
copy()
Creates an exact copy of the matrix
|
<T extends Matrix> |
createLike()
Creates a new matrix with the same shape as this matrix
|
float |
get(int row,
int col)
Returns the value of value of the specified matrix element.
|
float[] |
getData()
Used to get a reference to the internal data.
|
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()
Returns the number of elements in this matrix, which is the number of rows
times the number of columns.
|
int |
getNumRows()
Returns the number of rows in this matrix.
|
MatrixType |
getType()
Returns the type of matrix
|
void |
print()
Prints the matrix to standard out.
|
void |
reshape(int numRows,
int numCols,
boolean saveValues)
Changes the number of rows and columns in the matrix, allowing its size to grow or shrink.
|
void |
reshape(int numRows,
int numCols,
int blockLength,
boolean saveValues) |
void |
set(FMatrixRBlock A) |
void |
set(int row,
int col,
float val)
Sets the value of the specified matrix element.
|
void |
set(Matrix original)
Sets this matrix to be identical to the 'original' matrix passed in.
|
float |
unsafe_get(int row,
int col)
Same as
FMatrix.get(int, int) but does not perform bounds check on input parameters. |
void |
unsafe_set(int row,
int col,
float val)
Same as
FMatrix.set(int, int, float) but does not perform bounds check on input parameters. |
static FMatrixRBlock |
wrap(float[] data,
int numRows,
int numCols,
int blockLength) |
public FMatrixRBlock(int numRows, int numCols, int blockLength)
public FMatrixRBlock(int numRows, int numCols)
public FMatrixRBlock()
public void set(FMatrixRBlock A)
public static FMatrixRBlock wrap(float[] data, int numRows, int numCols, int blockLength)
public float[] getData()
FMatrixD1
public void reshape(int numRows, int numCols, boolean saveValues)
FMatrixD1
Changes the number of rows and columns in the matrix, allowing its size to grow or shrink. If the saveValues flag is set to true, then the previous values will be maintained, but reassigned to new elements in a row-major ordering. If saveValues is false values will only be maintained when the requested size is less than or equal to the internal array size. The primary use for this function is to encourage data reuse and avoid unnecessarily declaring and initialization of new memory.
Examples:
[ 1 2 ; 3 4 ] → reshape( 2 , 3 , true ) = [ 1 2 3 ; 4 0 0 ]
[ 1 2 ; 3 4 ] → reshape( 1 , 2 , true ) = [ 1 2 ]
[ 1 2 ; 3 4 ] → reshape( 1 , 2 , false ) = [ 1 2 ]
[ 1 2 ; 3 4 ] → reshape( 2 , 3 , false ) = [ 0 0 0 ; 0 0 0 ]
public void reshape(int numRows, int numCols, int blockLength, boolean saveValues)
public int getIndex(int row, int col)
FMatrixD1
public float get(int row, int col)
FMatrix
row
- Matrix element's row index..col
- Matrix element's column index.public float unsafe_get(int row, int col)
FMatrix
FMatrix.get(int, int)
but does not perform bounds check on input parameters. This results in about a 25%
speed increase but potentially sacrifices stability and makes it more difficult to track down simple errors.
It is not recommended that this function be used, except in highly optimized code where the bounds are
implicitly being checked.row
- Matrix element's row index..col
- Matrix element's column index.public void set(int row, int col, float val)
FMatrix
row
- Matrix element's row index..col
- Matrix element's column index.val
- The element's new value.public void unsafe_set(int row, int col, float val)
FMatrix
FMatrix.set(int, int, float)
but does not perform bounds check on input parameters. This results in about a 25%
speed increase but potentially sacrifices stability and makes it more difficult to track down simple errors.
It is not recommended that this function be used, except in highly optimized code where the bounds are
implicitly being checked.row
- Matrix element's row index..col
- Matrix element's column index.val
- The element's new value.public int getNumRows()
FMatrixD1
getNumRows
in interface Matrix
getNumRows
in class FMatrixD1
public int getNumCols()
FMatrixD1
getNumCols
in interface Matrix
getNumCols
in class FMatrixD1
public <T extends Matrix> T createLike()
Matrix
public void set(Matrix original)
Matrix
public int getNumElements()
FMatrix
public void print()
Matrix
public FMatrixRBlock copy()
Matrix
public MatrixType getType()
Matrix