Weak hands cannot be planted, meager skills have no foundation. Shallow wisdom is futile, how can one hope for a good name?扰扰从役倦，屑屑身事微。少壮轻年月，迟暮惜光辉。
args = $args;
}
/**
* Determines if previous data is enabled for charts.
*
* @return bool Returns true if previous data is enabled, false otherwise.
*/
protected function isPreviousDataEnabled()
{
if (!empty($this->args['prev_data'])) {
return true;
}
return Option::get('charts_previous_period'