NumberConverter::transform()   B
last analyzed

Complexity

Conditions 8
Paths 16

Size

Total Lines 11
Code Lines 6

Duplication

Lines 0
Ratio 0 %

Importance

Changes 1
Bugs 0 Features 0
Metric Value
eloc 6
c 1
b 0
f 0
dl 0
loc 11
rs 8.4444
cc 8
nc 16
nop 2
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<?php
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declare(strict_types=1);
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namespace Phpml\Preprocessing;
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final class NumberConverter implements Preprocessor
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{
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    /**
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     * @var bool
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     */
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    private $transformTargets;
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    /**
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     * @var mixed
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     */
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    private $nonNumericPlaceholder;
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    /**
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     * @param mixed $nonNumericPlaceholder
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     */
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    public function __construct(bool $transformTargets = false, $nonNumericPlaceholder = null)
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    {
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        $this->transformTargets = $transformTargets;
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        $this->nonNumericPlaceholder = $nonNumericPlaceholder;
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    }
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    public function fit(array $samples, ?array $targets = null): void
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    {
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        //nothing to do
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    }
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    public function transform(array &$samples, ?array &$targets = null): void
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    {
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        foreach ($samples as &$sample) {
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            foreach ($sample as &$feature) {
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                $feature = is_numeric($feature) ? (float) $feature : $this->nonNumericPlaceholder;
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            }
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        }
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        if ($this->transformTargets && is_array($targets)) {
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            foreach ($targets as &$target) {
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                $target = is_numeric($target) ? (float) $target : $this->nonNumericPlaceholder;
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            }
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        }
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    }
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}
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