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<?php |
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namespace PhpOffice\PhpSpreadsheet\Calculation\MathTrig; |
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use PhpOffice\PhpSpreadsheet\Calculation\Exception; |
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use PhpOffice\PhpSpreadsheet\Calculation\Functions; |
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use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError; |
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class SumSquares |
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{ |
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/** |
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* SUMSQ. |
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* |
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* SUMSQ returns the sum of the squares of the arguments |
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* |
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* Excel Function: |
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* SUMSQ(value1[,value2[, ...]]) |
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* |
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* @param mixed ...$args Data values |
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*/ |
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public static function sumSquare(mixed ...$args): string|int|float |
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{ |
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try { |
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$returnValue = 0; |
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// Loop through arguments |
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foreach (Functions::flattenArray($args) as $arg) { |
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$arg1 = Helpers::validateNumericNullSubstitution($arg, 0); |
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$returnValue += ($arg1 * $arg1); |
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} |
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} catch (Exception $e) { |
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return $e->getMessage(); |
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} |
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return $returnValue; |
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} |
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/** |
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* @param mixed[] $array1 |
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* @param mixed[] $array2 |
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*/ |
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private static function getCount(array $array1, array $array2): int |
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{ |
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$count = count($array1); |
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if ($count !== count($array2)) { |
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throw new Exception(ExcelError::NA()); |
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} |
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return $count; |
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} |
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/** |
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* These functions accept only numeric arguments, not even strings which are numeric. |
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*/ |
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private static function numericNotString(mixed $item): bool |
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{ |
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return is_numeric($item) && !is_string($item); |
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} |
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/** |
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* SUMX2MY2. |
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* |
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* @param mixed[] $matrixData1 Matrix #1 |
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* @param mixed[] $matrixData2 Matrix #2 |
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*/ |
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public static function sumXSquaredMinusYSquared(array $matrixData1, array $matrixData2): string|int|float |
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{ |
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try { |
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/** @var array<float|int> */ |
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$array1 = Functions::flattenArray($matrixData1); |
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/** @var array<float|int> */ |
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$array2 = Functions::flattenArray($matrixData2); |
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$count = self::getCount($array1, $array2); |
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$result = 0; |
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for ($i = 0; $i < $count; ++$i) { |
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if (self::numericNotString($array1[$i]) && self::numericNotString($array2[$i])) { |
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$result += ($array1[$i] * $array1[$i]) - ($array2[$i] * $array2[$i]); |
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} |
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} |
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} catch (Exception $e) { |
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return $e->getMessage(); |
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} |
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return $result; |
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} |
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/** |
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* SUMX2PY2. |
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* |
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* @param mixed[] $matrixData1 Matrix #1 |
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* @param mixed[] $matrixData2 Matrix #2 |
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*/ |
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public static function sumXSquaredPlusYSquared(array $matrixData1, array $matrixData2): string|int|float |
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{ |
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try { |
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/** @var array<float|int> */ |
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$array1 = Functions::flattenArray($matrixData1); |
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/** @var array<float|int> */ |
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$array2 = Functions::flattenArray($matrixData2); |
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$count = self::getCount($array1, $array2); |
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$result = 0; |
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for ($i = 0; $i < $count; ++$i) { |
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if (self::numericNotString($array1[$i]) && self::numericNotString($array2[$i])) { |
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$result += ($array1[$i] * $array1[$i]) + ($array2[$i] * $array2[$i]); |
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} |
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} |
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} catch (Exception $e) { |
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return $e->getMessage(); |
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} |
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return $result; |
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} |
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/** |
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* SUMXMY2. |
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* |
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* @param mixed[] $matrixData1 Matrix #1 |
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* @param mixed[] $matrixData2 Matrix #2 |
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*/ |
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public static function sumXMinusYSquared(array $matrixData1, array $matrixData2): string|int|float |
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{ |
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try { |
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/** @var array<float|int> */ |
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$array1 = Functions::flattenArray($matrixData1); |
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/** @var array<float|int> */ |
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$array2 = Functions::flattenArray($matrixData2); |
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$count = self::getCount($array1, $array2); |
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$result = 0; |
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for ($i = 0; $i < $count; ++$i) { |
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if (self::numericNotString($array1[$i]) && self::numericNotString($array2[$i])) { |
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$result += ($array1[$i] - $array2[$i]) * ($array1[$i] - $array2[$i]); |
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} |
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} |
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} catch (Exception $e) { |
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return $e->getMessage(); |
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} |
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return $result; |
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} |
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} |
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PHPOffice /
PhpSpreadsheet
