Code Coverage for /var/www/php-ml/src/Phpml/Dataset/CsvDataset.php

1	<?php
2
3	declare (strict_types = 1);
4
5	namespace Phpml\Dataset;
6
7	use Phpml\Exception\DatasetException;
8
9	class CsvDataset extends ArrayDataset
10	{
11	/**
12	* @var string
13	*/
14	protected $filepath;
15
16	/**
17	* @param string $filepath
18	* @param int $features
19	* @param bool $headingRow
20	*
21	* @throws DatasetException
22	*/
23	public function __construct(string $filepath, int $features, bool $headingRow = true)
24	{
25	if (!file_exists($filepath)) {
26	throw DatasetException::missingFile(basename($filepath));
27	}
28
29	if (false === $handle = fopen($filepath, 'r')) {
30	throw DatasetException::cantOpenFile(basename($filepath));
31	}
32
33	if ($headingRow) {
34	fgets($handle);
35	}
36
37	while (($data = fgetcsv($handle, 1000, ',')) !== false) {
38	$this->samples[] = array_slice($data, 0, $features);
39	$this->labels[] = $data[$features];
40	}
41	fclose($handle);
42	}
43	}