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<?php |
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namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig; |
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use Exception; |
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use Matrix\Exception as MatrixException; |
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use Matrix\Matrix; |
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use PhpOffice\PhpSpreadsheet\Calculation\Functions; |
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class MatrixFunctions |
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{ |
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/** |
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* Convert parameter to matrix. |
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* |
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* @param mixed $matrixValues A matrix of values |
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*/ |
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private static function getMatrix($matrixValues): Matrix |
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{ |
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$matrixData = []; |
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if (!is_array($matrixValues)) { |
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$matrixValues = [[$matrixValues]]; |
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} |
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$row = 0; |
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foreach ($matrixValues as $matrixRow) { |
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if (!is_array($matrixRow)) { |
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$matrixRow = [$matrixRow]; |
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} |
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$column = 0; |
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foreach ($matrixRow as $matrixCell) { |
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if ((is_string($matrixCell)) || ($matrixCell === null)) { |
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throw new Exception(Functions::VALUE()); |
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} |
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$matrixData[$row][$column] = $matrixCell; |
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++$column; |
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} |
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++$row; |
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} |
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return new Matrix($matrixData); |
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} |
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/** |
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* MDETERM. |
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* |
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* Returns the matrix determinant of an array. |
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* |
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* Excel Function: |
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* MDETERM(array) |
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* |
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* @param mixed $matrixValues A matrix of values |
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* |
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* @return float|string The result, or a string containing an error |
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*/ |
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public static function funcMDeterm($matrixValues) |
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{ |
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try { |
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$matrix = self::getMatrix($matrixValues); |
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return $matrix->determinant(); |
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} catch (MatrixException $ex) { |
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return Functions::VALUE(); |
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} catch (Exception $e) { |
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return $e->getMessage(); |
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} |
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} |
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/** |
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* MINVERSE. |
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* |
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* Returns the inverse matrix for the matrix stored in an array. |
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* |
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* Excel Function: |
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* MINVERSE(array) |
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* |
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* @param mixed $matrixValues A matrix of values |
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* |
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* @return array|string The result, or a string containing an error |
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*/ |
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public static function funcMInverse($matrixValues) |
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{ |
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try { |
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$matrix = self::getMatrix($matrixValues); |
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return $matrix->inverse()->toArray(); |
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} catch (MatrixException $e) { |
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return (strpos($e->getMessage(), 'determinant') === false) ? Functions::VALUE() : Functions::NAN(); |
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} catch (Exception $e) { |
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return $e->getMessage(); |
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} |
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} |
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/** |
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* MMULT. |
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* |
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* @param mixed $matrixData1 A matrix of values |
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* @param mixed $matrixData2 A matrix of values |
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* |
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* @return array|string The result, or a string containing an error |
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*/ |
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public static function funcMMult($matrixData1, $matrixData2) |
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{ |
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try { |
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$matrixA = self::getMatrix($matrixData1); |
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$matrixB = self::getMatrix($matrixData2); |
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return $matrixA->multiply($matrixB)->toArray(); |
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} catch (MatrixException $ex) { |
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return Functions::VALUE(); |
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} catch (Exception $e) { |
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return $e->getMessage(); |
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} |
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} |
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} |
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PHPOffice /
PhpSpreadsheet
