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.
/**
* Regressors interface.
*
* @package core_analytics
* @copyright 2017 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace core_analytics;
defined('MOODLE_INTERNAL') || die();
/**
* Regressors interface.
*
* @package core_analytics
* @copyright 2016 David Monllao {@link http://www.davidmonllao.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
interface regressor extends predictor {
/**
* Train this processor regression model using the provided supervised learning dataset.
*
* @param string $uniqueid
* @param \stored_file $dataset
* @param string $outputdir
* @return \stdClass
*/
public function train_regression($uniqueid, \stored_file $dataset, $outputdir);
/**
* Estimates linear values for the provided dataset samples.
*
* @param string $uniqueid
* @param \stored_file $dataset
* @param mixed $outputdir
* @return void
*/
public function estimate($uniqueid, \stored_file $dataset, $outputdir);
/**
* Evaluates this processor regression model using the provided supervised learning dataset.
*
* @param string $uniqueid
* @param float $maxdeviation
* @param int $niterations
* @param \stored_file $dataset
* @param string $outputdir
* @param string $trainedmodeldir
* @return \stdClass
*/
public function evaluate_regression($uniqueid, $maxdeviation, $niterations, \stored_file $dataset,
$outputdir, $trainedmodeldir);
}