php-ai /
php-ml
| @@ 461-470 (lines=10) @@ | ||
| 458 | $this->ort[$m] -= $g; |
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| 459 | // Apply Householder similarity transformation |
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| 460 | // H = (I -u * u' / h) * H * (I -u * u') / h) |
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| 461 | for ($j = $m; $j < $this->n; ++$j) { |
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| 462 | $f = 0.0; |
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| 463 | for ($i = $high; $i >= $m; --$i) { |
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| 464 | $f += $this->ort[$i] * $this->H[$i][$j]; |
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| 465 | } |
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| 466 | ||
| 467 | $f /= $h; |
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| 468 | for ($i = $m; $i <= $high; ++$i) { |
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| 469 | $this->H[$i][$j] -= $f * $this->ort[$i]; |
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| 470 | } |
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| 471 | } |
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| 472 | ||
| 473 | for ($i = 0; $i <= $high; ++$i) { |
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| @@ 473-482 (lines=10) @@ | ||
| 470 | } |
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| 471 | } |
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| 472 | ||
| 473 | for ($i = 0; $i <= $high; ++$i) { |
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| 474 | $f = 0.0; |
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| 475 | for ($j = $high; $j >= $m; --$j) { |
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| 476 | $f += $this->ort[$j] * $this->H[$i][$j]; |
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| 477 | } |
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| 478 | ||
| 479 | $f = $f / $h; |
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| 480 | for ($j = $m; $j <= $high; ++$j) { |
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| 481 | $this->H[$i][$j] -= $f * $this->ort[$j]; |
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| 482 | } |
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| 483 | } |
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| 484 | ||
| 485 | $this->ort[$m] = $scale * $this->ort[$m]; |
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