$this->load->model('raminten_db');
$tampung = $this->raminten_db->getPenjualanAll();

// Load chart library
$this->load->library('graph');

//-------------------------
// Graph generation(first round)
// Create the phplot argument
$arr = array();
foreach ($tampung as $row)
{
    $arr[] = array($row->kode_menu, $row->kuantitas);
}

// Additional parameters, phplot key in the name of the method, set the value argument
     $params = array('SetTitle' => 'Penjualan',// title
       'SetPlotType' => 'points',// chart the type of area bars linepoints lines pie points squared stackedbars thinbarline
       );


    // Data and a set of parameters
     $this->graph->setdata($arr,$params);
    // Graph generation
     $this->graph->draw();