Piwik\Plugins\API\Reports\Get::getProcessedMetrics PHP Method

    public function getProcessedMetrics()
    {
        $processedMetrics = array();
        foreach ($this->reportsToMerge as $report) {
            $reportMetrics = $report->getProcessedMetrics();
            if (is_array($reportMetrics)) {
                $processedMetrics = array_merge($processedMetrics, $reportMetrics);
            }
        }
        return $processedMetrics;
    }