php-ai /
php-ml
| @@ 381-387 (lines=7) @@ | ||
| 378 | * |
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| 379 | * @return array |
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| 380 | */ |
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| 381 | public static function dot(array $array1, array $array2) |
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| 382 | { |
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| 383 | $m1 = new Matrix($array1, false); |
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| 384 | $m2 = new Matrix($array2, false); |
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| 385 | ||
| 386 | return $m1->multiply($m2->transpose())->toArray()[0]; |
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| 387 | } |
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| 388 | ||
| 389 | /** |
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| 390 | * Element-wise subtracting one array from another |
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| @@ 397-403 (lines=7) @@ | ||
| 394 | * |
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| 395 | * @return array |
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| 396 | */ |
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| 397 | public static function diffArray(array $array1, array $array2) |
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| 398 | { |
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| 399 | $m1 = new Matrix($array1, false); |
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| 400 | $m2 = new Matrix($array2, false); |
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| 401 | ||
| 402 | return $m1->subtract($m2)->toArray()[0]; |
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| 403 | } |
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| 404 | ||
| 405 | /** |
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| 406 | * Element-wise addition of two arrays |
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| @@ 413-419 (lines=7) @@ | ||
| 410 | * |
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| 411 | * @return array |
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| 412 | */ |
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| 413 | public static function sumArray(array $array1, array $array2) |
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| 414 | { |
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| 415 | $m1 = new Matrix($array1, false); |
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| 416 | $m2 = new Matrix($array2, false); |
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| 417 | ||
| 418 | return $m1->add($m2)->toArray(); |
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| 419 | } |
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| 420 | ||
| 421 | /** |
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| 422 | * Element-wise mapping the array through the given callable |
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