39 lines
921 B
PHP
39 lines
921 B
PHP
<?php
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declare(strict_types=1);
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namespace Phpml\Dataset;
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use Phpml\Exception\FileException;
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class CsvDataset extends ArrayDataset
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{
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/**
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* @param string $filepath
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* @param int $features
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* @param bool $headingRow
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*
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* @throws FileException
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*/
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public function __construct(string $filepath, int $features, bool $headingRow = true)
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{
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if (!file_exists($filepath)) {
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throw FileException::missingFile(basename($filepath));
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}
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if (false === $handle = fopen($filepath, 'rb')) {
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throw FileException::cantOpenFile(basename($filepath));
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}
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if ($headingRow) {
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fgets($handle);
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}
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while (($data = fgetcsv($handle, 1000, ',')) !== false) {
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$this->samples[] = array_slice($data, 0, $features);
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$this->targets[] = $data[$features];
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}
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fclose($handle);
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}
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}
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