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java.lang.Object cern.colt.PersistentObject cern.colt.matrix.AbstractMatrix cern.colt.matrix.AbstractMatrix2D cern.colt.matrix.tfcomplex.FComplexMatrix2D cern.colt.matrix.tfcomplex.impl.SparseFComplexMatrix2D
public class SparseFComplexMatrix2D
Sparse hashed 2-d matrix holding complex elements. Note that this implementation uses ConcurrentHashMap
Constructor Summary | |
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SparseFComplexMatrix2D(float[][] values)
Constructs a matrix with a copy of the given values. |
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SparseFComplexMatrix2D(int rows,
int columns)
Constructs a matrix with a given number of rows and columns and default memory usage. |
Method Summary | |
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FComplexMatrix2D |
assign(FComplexMatrix2D source)
Replaces all cell values of the receiver with the values of another matrix. |
FComplexMatrix2D |
assign(FComplexMatrix2D y,
FComplexFComplexFComplexFunction function)
Assigns the result of a function to each cell. |
FComplexMatrix2D |
assign(float[] value)
Sets all cells to the state specified by value. |
int |
cardinality()
Returns the number of cells having non-zero values. |
ConcurrentHashMap<Integer,float[]> |
elements()
Returns the elements of this matrix. |
FloatMatrix2D |
getImaginaryPart()
Returns the imaginary part of this matrix |
float[] |
getQuick(int row,
int column)
Returns the matrix cell value at coordinate [row,column]. |
FloatMatrix2D |
getRealPart()
Returns the real part of this matrix |
long |
index(int row,
int column)
Returns the position of the given coordinate within the (virtual or non-virtual) internal 1-dimensional array. |
FComplexMatrix2D |
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. |
FComplexMatrix1D |
like1D(int size)
Construct and returns a new 1-d matrix of the corresponding dynamic type, entirelly independent of the receiver. |
void |
setQuick(int row,
int column,
float[] value)
Sets the matrix cell at coordinate [row,column] to the specified value. |
void |
setQuick(int row,
int column,
float re,
float im)
Sets the matrix cell at coordinate [row,column] to the specified value. |
FComplexMatrix1D |
vectorize()
Returns a vector obtained by stacking the columns of the matrix on top of one another. |
Methods inherited from class cern.colt.matrix.tfcomplex.FComplexMatrix2D |
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aggregate, aggregate, assign, assign, assign, assign, assign, assign, assignImaginary, assignReal, copy, equals, equals, forEachNonZero, get, getConjugateTranspose, getNonZeros, like, set, toArray, toString, toString, viewColumn, viewColumnFlip, viewDice, viewPart, viewRow, viewRowFlip, viewSelection, viewSelection, viewStrides, zMult, zMult, zMult, zMult, zSum |
Methods inherited from class cern.colt.matrix.AbstractMatrix2D |
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checkShape, checkShape, columns, columnStride, rows, rowStride, size, toStringShort |
Methods inherited from class cern.colt.matrix.AbstractMatrix |
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ensureCapacity, isView, trimToSize |
Methods inherited from class cern.colt.PersistentObject |
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clone |
Methods inherited from class java.lang.Object |
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getClass, hashCode, notify, notifyAll, wait, wait, wait |
Constructor Detail |
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public SparseFComplexMatrix2D(float[][] values)
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.
IllegalArgumentException
- if
for any 1 <= row < values.length: values[row].length != values[row-1].length
.public SparseFComplexMatrix2D(int rows, int columns)
rows
- the number of rows the matrix shall have.columns
- the number of columns the matrix shall have.
IllegalArgumentException
- if
rows<0 || columns<0 || (float)columns*rows > Integer.MAX_VALUE
.Method Detail |
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public FComplexMatrix2D assign(float[] value)
assign
in class FComplexMatrix2D
value
- the value to be filled into the cells.
public FComplexMatrix2D assign(FComplexMatrix2D source)
assign
in class FComplexMatrix2D
source
- the source matrix to copy from (may be identical to the
receiver).
IllegalArgumentException
- if
columns() != source.columns() || rows() != source.rows()public FComplexMatrix2D assign(FComplexMatrix2D y, FComplexFComplexFComplexFunction function)
assign
in class FComplexMatrix2D
y
- 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,
IllegalArgumentException
- if
columns() != other.columns() || rows() != other.rows()FComplexFunctions
public int cardinality()
cardinality
in class FComplexMatrix2D
public float[] getQuick(int row, int column)
Provided 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 FComplexMatrix2D
row
- the index of the row-coordinate.column
- the index of the column-coordinate.
public ConcurrentHashMap<Integer,float[]> elements()
elements
in class FComplexMatrix2D
public long index(int row, int column)
index
in class AbstractMatrix2D
row
- the index of the row-coordinate.column
- the index of the column-coordinate.public FComplexMatrix2D like(int rows, int columns)
like
in class FComplexMatrix2D
rows
- the number of rows the matrix shall have.columns
- the number of columns the matrix shall have.
public FComplexMatrix1D like1D(int size)
like1D
in class FComplexMatrix2D
size
- the number of cells the matrix shall have.
public void setQuick(int row, int column, float[] value)
Provided 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 FComplexMatrix2D
row
- the index of the row-coordinate.column
- the index of the column-coordinate.value
- the value to be filled into the specified cell.public FComplexMatrix1D vectorize()
vectorize
in class FComplexMatrix2D
public void setQuick(int row, int column, float re, float im)
Provided 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 FComplexMatrix2D
row
- the index of the row-coordinate.column
- the index of the column-coordinate.re
- the real part of the value to be filled into the specified
cell.im
- the imaginary part of the value to be filled into the
specified cell.public FloatMatrix2D getImaginaryPart()
getImaginaryPart
in class FComplexMatrix2D
public FloatMatrix2D getRealPart()
getRealPart
in class FComplexMatrix2D
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