uchicago.src.sim.network
Class AdjacencyBitMatrix

java.lang.Object
  uchicago.src.sim.network.AbstractAdjacencyMatrix
      uchicago.src.sim.network.AdjacencyBitMatrix

All Implemented Interfaces:

AdjacencyMatrix

public class AdjacencyBitMatrix
extends AbstractAdjacencyMatrix

Field Summary

Fields inherited from class uchicago.src.sim.network.AbstractAdjacencyMatrix

comment, labels, matrixLabel

Constructor Summary

AdjacencyBitMatrix(byte[][] m)
Constructs an AdjacencyBitMatrix from the specified two dimensional byte array.

AdjacencyBitMatrix(int rows, int cols)
Constructs an AdjacencyBitMatrix with the specified number of rows and columns.

AdjacencyBitMatrix(java.util.List labels)
Constructs an AdjacencyBitMatrix with the specified row/col labels.

Method Summary

int	columns() Returns the number of columns in the matrix.
double	get(int row, int col) Gets the value at row, col.
double	getAvgDegree() Gets the average degree of this matrix.
double	getDensity() Gets (computes) the density of this matrix.
cern.colt.matrix.impl.DenseDoubleMatrix1D	getRow(int row) Gets the specified row of data for this matrix.
java.lang.String	matrixToString() Returns a String representation of only the actual data matrix.
int	rows() Returns the number of rows int matrix.
void	set(int row, int col, byte val) Sets a data value in this matrix.
void	set(int row, int col, double val) Sets a data value in this matrix.
void	setMatrix(byte[][] m) Sets the matrix for this AdjacencyByteMatrix to the specified byte[][].
void	setMatrix(cern.colt.matrix.impl.DenseDoubleMatrix2D m) Copies the matrix elements from the specified DenseDoubleMatrix2D.
java.lang.String	toString() Returns a String representation of this AdjacencyMatrix (comment etc.)

Methods inherited from class uchicago.src.sim.network.AbstractAdjacencyMatrix

getComment, getLabels, getMatrixLabel, setComment, setMatrixLabel

Methods inherited from class java.lang.Object

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

Constructor Detail

AdjacencyBitMatrix

public AdjacencyBitMatrix(int rows,
                          int cols)

Constructs an AdjacencyBitMatrix with the specified number of rows and columns. The intial state of every ij is 0.

Parameters:

rows - the number of rows in the matrix

cols - the number of cols in the matrix

AdjacencyBitMatrix

public AdjacencyBitMatrix(java.util.List labels)

Constructs an AdjacencyBitMatrix with the specified row/col labels. The matrix row and column size are set equal to the size of the lables vector. This initial state of every ij is 0.

Parameters:

labels - the row & column labels

AdjacencyBitMatrix

public AdjacencyBitMatrix(byte[][] m)

Constructs an AdjacencyBitMatrix from the specified two dimensional byte array. The matrix element at ij is set to 0 if byte[i][j] = 0, otherwise the matrix element at ij is set to 1.

Parameters:

m - the 2D byte array to construct this AdjacencyMatrix from.

Method Detail

setMatrix

public void setMatrix(cern.colt.matrix.impl.DenseDoubleMatrix2D m)

Copies the matrix elements from the specified DenseDoubleMatrix2D. The matrix element at ij is set to 0 if the element at DoubleMatrix[i][j] = 0, otherwise the matrix element at ij is set to 1.

Parameters:

m - the actual matrix data for this AdjacencyMatrix

setMatrix

public void setMatrix(byte[][] m)

Sets the matrix for this AdjacencyByteMatrix to the specified byte[][]. The matrix elements are copied form the specified byte[][] and any subsequent changes to that byte[][] will not be reflected in this AdjacencyBitArray.

The matrix element at ij is set to 0 if byte[i][j] = 0, otherwise the matrix element at ij is set to 1.

Parameters:

m - the actual matrix data for this AdjacencyMatrix

getRow

public cern.colt.matrix.impl.DenseDoubleMatrix1D getRow(int row)

Gets the specified row of data for this matrix.

Parameters:

row - the index of the row to get

getDensity

public double getDensity()

Gets (computes) the density of this matrix.

getAvgDegree

public double getAvgDegree()

Gets the average degree of this matrix.

set

public void set(int row,
                int col,
                byte val)

Sets a data value in this matrix. If val equals the matrix element at row, col will be set to 0, otherwise it is set to 1.

Parameters:

row - the row index (i)

col - the col index (j)

set

public void set(int row,
                int col,
                double val)

Sets a data value in this matrix. If val equals the matrix element at row, col will be set to 0, otherwise it is set to 1.

Parameters:

row - the row index (i)

col - the col index (j)

get

public double get(int row,
                  int col)

Gets the value at row, col. This returns a double rather than a byte for implementation reasons.

Parameters:

row - the row index (i)

col - the col index (j)

Returns:

the byte value at row, col (ij) as a double.

rows

public int rows()

Returns the number of rows int matrix.

columns

public int columns()

Returns the number of columns in the matrix.

matrixToString

public java.lang.String matrixToString()

Returns a String representation of only the actual data matrix.

toString

public java.lang.String toString()

Returns a String representation of this AdjacencyMatrix (comment etc.) together with the actual data matrix.

Overrides:

toString in class java.lang.Object