/**
* Construct a SparseMatrixAsArray
* with the specified dimensions and row fill.
*
* @param integer $numRows The number of rows.
* @param integer $numCols The number of columns.
* @param integer $fill The maximum number of non-zero entries in any row.
*/
public function __construct($numRows, $numCols, $fill)
{
parent::__construct($numRows, $numCols);
$this->fill = $fill;
$this->values = new DenseMatrix($numRows, $fill);
$this->columns = new DenseMatrix($numRows, $fill);
for ($i = 0; $i < $this->numRows; ++$i) {
$this->columns[array($i, 0)] = self::END_OF_ROW;
}
}
/**
* Constructs a DenseMatrix with the given number of rows and columns.
*
* @param integer $rows The number of rows.
* @param integer $columns The number of columns.
*/
public function __construct($rows, $columns)
{
parent::__construct($rows, $columns);
$this->array = new MultiDimensionalArray(array($rows, $columns));
}
/**
* Construct a SparseMatrixAsVector
* with the specified dimensions and maximum number of non-zero elements.
*
* @param integer $numRows The number of rows.
* @param integer $numCols The number of columns.
* @param integer $maxElements The maximum number of non-zero elements
* in this matrix.
*/
public function __construct($numRows, $numCols, $maxElements)
{
parent::__construct($numRows, $numCols);
$this->array = new BasicArray($maxElements);
for ($i = 0; $i < $maxElements; ++$i) {
$this->array[$i] = new SparseMatrixAsVector_Entry();
}
$this->numberOfElements = 0;
}
/**
* Construct a <code>SparseMatrixAsLinkedLists</code>
* with the specified dimensions.
*
* @param integer $numRows The number of rows.
* @param integer $numCols The number of columns.
*/
public function __construct($numRows, $numCols)
{
parent::__construct($numRows, $numCols);
$this->lists = new BasicArray($numRows);
for ($i = 0; $i < $this->numRows; ++$i) {
$this->lists[$i] = new LinkedList();
}
}
