public function buildDashboard()
{
$c2 = new ChartComponent('b');
$c2->setDimensions(6, 4);
$c2->setCaption('Units By Year');
$c2->setLabels(['2007', '2008', '2009', '2010', '2011']);
$c2->addSeries('units', 'Units', [454, 455, 236, 195, 442], array('seriesDisplayType' => 'line'));
$c2->addTrendLine(250, "Average");
$this->addComponent($c2);
}
