Piwik\Plugins\UserCountry\Controller::getLastDistinctCountriesGraph PHP Method

    public function getLastDistinctCountriesGraph()
    {
        $view = $this->getLastUnitGraph('UserCountry', __FUNCTION__, "UserCountry.getNumberOfDistinctCountries");
        $view->config->columns_to_display = array('UserCountry_distinctCountries');
        return $this->renderView($view);
    }