net.sourceforge.combean.mathprog.linalg
Class RowVectorOfMatrix

java.lang.Object
  net.sourceforge.combean.mathprog.linalg.RowVectorOfMatrix

All Implemented Interfaces:

SparseVec<NoLabel>, SparseVector

public class RowVectorOfMatrix
extends Object
implements SparseVector

A row of a matrix as vector.

Constructor Summary

RowVectorOfMatrix(Matrix matrix, int row)
Constructor

Method Summary

int	getDimension() Get the dimension of the vector.
Matrix	getMatrix()
int	getNumIterations() Return the number of entries of the vector through which the iterator returned by getIterator() iterates.
int	getRow()
VectorIterator<NoLabel>	iterator() Get an iterator which iterates through all non-zero entries of the vector.
String	toString()

Methods inherited from class java.lang.Object

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

Constructor Detail

RowVectorOfMatrix

public RowVectorOfMatrix(Matrix matrix,
                         int row)

Constructor

Parameters:

matrix - the matrix

row - the row as matrix to show as vector

Method Detail

getDimension

public int getDimension()

Description copied from interface: SparseVector

Get the dimension of the vector.

Specified by:

getDimension in interface SparseVector

Returns:

the dimension of the vector.

iterator

public VectorIterator<NoLabel> iterator()

Description copied from interface: SparseVec

Get an iterator which iterates through all non-zero entries of the vector. The iteration must stop after exactly getNumNonZeroEntries() steps. An implementation may choose to also return zero entries during the iteration. In that case, these entries must also be counted by getNumIterations(); The iteration does not have to return the values in order of increasing indices.

Specified by:

iterator in interface SparseVec<NoLabel>

Returns:

an iterator for the non-zero entries.

getNumIterations

public int getNumIterations()

Description copied from interface: SparseVec

Return the number of entries of the vector through which the iterator returned by getIterator() iterates.

Specified by:

getNumIterations in interface SparseVec<NoLabel>

Returns:

the number of iterations of getIterator.

getRow

public final int getRow()

Returns:

Returns the row.

getMatrix

public final Matrix getMatrix()

Returns:

Returns the matrix.

toString

public String toString()

Overrides:

toString in class Object