protected function init()
{
parent::init();
$this->categoryId = 'General_Visitors';
$this->name = Piwik::translate('VisitFrequency_ColumnReturningVisits');
$this->documentation = '';
// TODO
$this->processedMetrics = array(new ReturningMetric(new AverageTimeOnSite()), new ReturningMetric(new ActionsPerVisit()), new ReturningMetric(new BounceRate()));
$this->metrics = array('nb_visits_returning', 'nb_actions_returning', 'nb_uniq_visitors_returning', 'nb_users_returning', 'max_actions_returning');
$this->order = 40;
$this->subcategoryId = 'VisitorInterest_Engagement';
}