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PHP Version:

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infinio

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/home/infinio/public_html/moodle/lib/mlbackend/php/phpml/src/Phpml/CrossValidation

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✏️ Editing: Split.php

<?php

declare(strict_types=1);

namespace Phpml\CrossValidation;

use Phpml\Dataset\Dataset;
use Phpml\Exception\InvalidArgumentException;

abstract class Split
{
    /**
     * @var array
     */
    protected $trainSamples = [];

/**
     * @var array
     */
    protected $testSamples = [];

/**
     * @var array
     */
    protected $trainLabels = [];

/**
     * @var array
     */
    protected $testLabels = [];

public function __construct(Dataset $dataset, float $testSize = 0.3, ?int $seed = null)
    {
        if ($testSize <= 0 || $testSize >= 1) {
            throw new InvalidArgumentException('testsize must be between 0.0 and 1.0');
        }

$this->seedGenerator($seed);

$this->splitDataset($dataset, $testSize);
    }

public function getTrainSamples(): array
    {
        return $this->trainSamples;
    }

public function getTestSamples(): array
    {
        return $this->testSamples;
    }

public function getTrainLabels(): array
    {
        return $this->trainLabels;
    }

public function getTestLabels(): array
    {
        return $this->testLabels;
    }

abstract protected function splitDataset(Dataset $dataset, float $testSize): void;

protected function seedGenerator(?int $seed = null): void
    {
        if ($seed === null) {
            mt_srand();
        } else {
            mt_srand($seed);
        }
    }
}

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