/**
* @param string $rootPath
*
* @throws DatasetException
*/
public function __construct(string $rootPath)
{
if (!is_dir($rootPath)) {
throw DatasetException::missingFolder($rootPath);
}
$this->scanRootPath($rootPath);
}
/**
* @param string $filepath
* @param int $features
* @param bool $headingRow
*
* @throws DatasetException
*/
public function __construct(string $filepath, int $features, bool $headingRow = true)
{
if (!file_exists($filepath)) {
throw DatasetException::missingFile(basename($filepath));
}
if (false === ($handle = fopen($filepath, 'r'))) {
throw DatasetException::cantOpenFile(basename($filepath));
}
if ($headingRow) {
fgets($handle);
}
while (($data = fgetcsv($handle, 1000, ',')) !== false) {
$this->samples[] = array_slice($data, 0, $features);
$this->targets[] = $data[$features];
}
fclose($handle);
}