Conditions | 2 |
Paths | 2 |
Total Lines | 13 |
Code Lines | 7 |
Lines | 0 |
Ratio | 0 % |
Changes | 0 |
1 | <?php |
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44 | public static function sumOfSquares(array $numbers): float |
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45 | { |
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46 | if (count($numbers) === 0) { |
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47 | throw new InvalidArgumentException('The array has zero elements'); |
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48 | } |
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49 | |||
50 | $mean = Mean::arithmetic($numbers); |
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51 | |||
52 | return array_sum(array_map( |
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53 | static function ($val) use ($mean): float { |
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54 | return ($val - $mean) ** 2; |
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55 | }, |
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56 | $numbers |
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57 | )); |
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60 |