public function getRowEvolutionGraph($fetch = false, $rowEvolution = null)
{
if (empty($rowEvolution)) {
$label = Common::getRequestVar('label', '', 'string');
$isMultiRowEvolution = strpos($label, ',') !== false;
$rowEvolution = $this->makeRowEvolution($isMultiRowEvolution, $graphType = 'graphEvolution');
$rowEvolution->useAvailableMetrics();
}
$view = $rowEvolution->getRowEvolutionGraph();
return $this->renderView($view);
}