public class DiagonalLongMatrix2D extends WrapperLongMatrix2D
| Constructor and Description |
|---|
DiagonalLongMatrix2D(int rows,
int columns,
int dindex)
Constructs a matrix with a given number of rows and columns.
|
DiagonalLongMatrix2D(long[][] values,
int dindex)
Constructs a matrix with a copy of the given values.
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| Modifier and Type | Method and Description |
|---|---|
LongMatrix2D |
assign(long value)
Sets all cells to the state specified by value.
|
LongMatrix2D |
assign(long[] values)
Sets all cells to the state specified by values.
|
LongMatrix2D |
assign(long[][] values)
Sets all cells to the state specified by values.
|
LongMatrix2D |
assign(LongFunction function)
Assigns the result of a function to each cell;
x[row,col] = function(x[row,col]).
|
LongMatrix2D |
assign(LongMatrix2D source)
Replaces all cell values of the receiver with the values of another
matrix.
|
LongMatrix2D |
assign(LongMatrix2D y,
LongLongFunction function)
Assigns the result of a function to each cell;
x[row,col] = function(x[row,col],y[row,col]).
|
int |
cardinality()
Returns the number of cells having non-zero values; ignores tolerance.
|
int |
diagonalIndex()
Returns the index of the diagonal
|
int |
diagonalLength()
Returns the length of the diagonal
|
long[] |
elements()
Returns the elements of this matrix.
|
boolean |
equals(long value)
Returns whether all cells are equal to the given value.
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boolean |
equals(Object obj)
Compares this object against the specified object.
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LongMatrix2D |
forEachNonZero(IntIntLongFunction function)
Assigns the result of a function to each non-zero cell;
x[row,col] = function(x[row,col]).
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long[] |
getMaxLocation()
Return the maximum value of this matrix together with its location
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long[] |
getMinLocation()
Return the minimum value of this matrix together with its location
|
long |
getQuick(int row,
int column)
Returns the matrix cell value at coordinate [row,column].
|
LongMatrix2D |
like(int rows,
int columns)
Construct and returns a new empty matrix of the same dynamic type
as the receiver, having the specified number of rows and columns.
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LongMatrix1D |
like1D(int size)
Construct and returns a new 1-d matrix of the corresponding dynamic
type, entirelly independent of the receiver.
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void |
setQuick(int row,
int column,
long value)
Sets the matrix cell at coordinate [row,column] to the specified
value.
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LongMatrix1D |
zMult(LongMatrix1D y,
LongMatrix1D z,
long alpha,
long beta,
boolean transposeA)
Linear algebraic matrix-vector multiplication;
z = alpha * A * y + beta*z.
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assign, vectorize, viewColumn, viewColumnFlip, viewDice, viewPart, viewRow, viewRowFlip, viewSelection, viewStridesaggregate, aggregate, aggregate, aggregate, assign, assign, assign, copy, get, getNegativeValues, getNonZeros, getPositiveValues, like, set, toArray, toString, viewSelection, viewSelection, viewSorted, zMult, zMult, zMult, zSumcheckShape, checkShape, columns, columnStride, index, rows, rowStride, size, toStringShortensureCapacity, isView, trimToSizeclonepublic DiagonalLongMatrix2D(long[][] values,
int dindex)
The values are copied. So subsequent changes in values are not reflected in the matrix, and vice-versa.
values - The values to be filled into the new matrix.dindex - index of the diagonal.IllegalArgumentException - if
for any 1 <= row < values.length: values[row].length != values[row-1].length || index < -rows+1 || index > columns - 1
.public DiagonalLongMatrix2D(int rows,
int columns,
int dindex)
rows - the number of rows the matrix shall have.columns - the number of columns the matrix shall have.dindex - index of the diagonal.IllegalArgumentException - if size<0 (long)size > Integer.MAX_VALUE.public LongMatrix2D assign(LongFunction function)
LongMatrix2DExample:
matrix = 2 x 2 matrix 0.5 1.5 2.5 3.5 // change each cell to its sine matrix.assign(cern.jet.math.Functions.sin); --> 2 x 2 matrix 0.479426 0.997495 0.598472 -0.350783For further examples, see the package doc.
assign in class LongMatrix2Dfunction - a function object taking as argument the current cell's value.LongFunctionspublic LongMatrix2D assign(long value)
LongMatrix2Dassign in class LongMatrix2Dvalue - the value to be filled into the cells.public LongMatrix2D assign(long[] values)
LongMatrix2DThe values are copied. So subsequent changes in values are not reflected in the matrix, and vice-versa.
assign in class WrapperLongMatrix2Dvalues - the values to be filled into the cells.public LongMatrix2D assign(long[][] values)
LongMatrix2DThe values are copied. So subsequent changes in values are not reflected in the matrix, and vice-versa.
assign in class LongMatrix2Dvalues - the values to be filled into the cells.public LongMatrix2D assign(LongMatrix2D source)
LongMatrix2Dassign in class LongMatrix2Dsource - the source matrix to copy from (may be identical to the
receiver).public LongMatrix2D assign(LongMatrix2D y, LongLongFunction function)
LongMatrix2DExample:
// assign x[row,col] = x[row,col]<sup>y[row,col]</sup> m1 = 2 x 2 matrix 0 1 2 3 m2 = 2 x 2 matrix 0 2 4 6 m1.assign(m2, cern.jet.math.Functions.pow); --> m1 == 2 x 2 matrix 1 1 16 729For further examples, see the package doc.
assign in class WrapperLongMatrix2Dy - the secondary matrix to operate on.function - a function object taking as first argument the current cell's
value of this, and as second argument the current
cell's value of y,LongFunctionspublic int cardinality()
LongMatrix2Dcardinality in class LongMatrix2Dpublic long[] elements()
LongMatrix2Delements in class WrapperLongMatrix2Dpublic boolean equals(long value)
LongMatrix2Dequals in class WrapperLongMatrix2Dvalue - the value to test against.public boolean equals(Object obj)
LongMatrix2Dtrue if and only if the argument is not null
and is at least a LongMatrix2D object that has the same
number of columns and rows as the receiver and has exactly the same
values at the same coordinates.equals in class WrapperLongMatrix2Dobj - the object to compare with.true if the objects are the same; false
otherwise.public LongMatrix2D forEachNonZero(IntIntLongFunction function)
LongMatrix2DforEachNonZero in class LongMatrix2Dfunction - a function object taking as argument the current non-zero
cell's row, column and value.public int diagonalLength()
public int diagonalIndex()
public long[] getMaxLocation()
LongMatrix2DgetMaxLocation in class LongMatrix2Dpublic long[] getMinLocation()
LongMatrix2DgetMinLocation in class LongMatrix2Dpublic long getQuick(int row,
int column)
LongMatrix2DProvided with invalid parameters this method may return invalid objects without throwing any exception. You should only use this method when you are absolutely sure that the coordinate is within bounds. Precondition (unchecked): 0 <= column < columns() && 0 <= row < rows().
getQuick in class WrapperLongMatrix2Drow - the index of the row-coordinate.column - the index of the column-coordinate.public LongMatrix2D like(int rows, int columns)
LongMatrix2Dlike in class WrapperLongMatrix2Drows - the number of rows the matrix shall have.columns - the number of columns the matrix shall have.public LongMatrix1D like1D(int size)
LongMatrix2Dlike1D in class WrapperLongMatrix2Dsize - the number of cells the matrix shall have.public void setQuick(int row,
int column,
long value)
LongMatrix2DProvided with invalid parameters this method may access illegal indexes without throwing any exception. You should only use this method when you are absolutely sure that the coordinate is within bounds. Precondition (unchecked): 0 <= column < columns() && 0 <= row < rows().
setQuick in class WrapperLongMatrix2Drow - the index of the row-coordinate.column - the index of the column-coordinate.value - the value to be filled into the specified cell.public LongMatrix1D zMult(LongMatrix1D y, LongMatrix1D z, long alpha, long beta, boolean transposeA)
LongMatrix2DzMult in class LongMatrix2Dy - the source vector.z - the vector where results are to be stored. Set this parameter
to null to indicate that a new result vector shall be
constructed.Jump to the Parallel Colt Homepage