robotomize /
regression-php
| @@ 77-89 (lines=13) @@ | ||
| 74 | * @return float |
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| 75 | * @throws IllegalArgumentException |
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| 76 | */ |
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| 77 | public static function mape(array $rightData, array $hypothesisData): float |
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| 78 | { |
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| 79 | $score = 0; |
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| 80 | if (count($rightData) !== count($hypothesisData)) { |
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| 81 | throw new IllegalArgumentException(self::ERROR_ARRAY_LENGTH); |
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| 82 | } |
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| 83 | ||
| 84 | foreach ($rightData as $k => $v) { |
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| 85 | $score += abs($v - $hypothesisData[$k]) / $v; |
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| 86 | } |
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| 87 | ||
| 88 | return $score / count($rightData); |
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| 89 | } |
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| 90 | ||
| 91 | /** |
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| 92 | * Mean absolute error |
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| @@ 99-111 (lines=13) @@ | ||
| 96 | * @return float |
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| 97 | * @throws IllegalArgumentException |
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| 98 | */ |
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| 99 | public static function mae(array $rightData, array $hypothesisData): float |
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| 100 | { |
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| 101 | $score = 0; |
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| 102 | if (count($rightData) !== count($hypothesisData)) { |
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| 103 | throw new IllegalArgumentException(self::ERROR_ARRAY_LENGTH); |
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| 104 | } |
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| 105 | ||
| 106 | foreach ($rightData as $k => $v) { |
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| 107 | $score += abs($v - $hypothesisData[$k]); |
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| 108 | } |
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| 109 | ||
| 110 | return $score / count($rightData); |
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| 111 | } |
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| 112 | ||
| 113 | /** |
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| 114 | * 1- mae |
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