Mastika - 2016-10-23

I am very confused with what i do now . the data doesn't show up. I want to show x and y with array. Anyone can help? This is the code.

<?php
session_start();
$xMid=$_SESSION['xMid'];
$yMid=$_SESSION['yMid'];
$xArray=$_SESSION['xArray'];
$yArray=$_SESSION['yArray'];

require_once 'phplot.php';
$data = array();
  $data[] = array('',$xArray,$yArray); // xarray  and yarray doesn't show up in scatter plot

$plot = new PHPlot(800, 600);
$plot->SetImageBorderType('plain');

$plot->SetPlotType('points');
$plot->SetDataType('data-data');
$plot->SetDataValues($data);

# Main plot title:
$plot->SetTitle('Scatterplot (points plot)');

# Need to set area and ticks to get reasonable choices.
$plot->SetPlotAreaWorld(3, 3, 5, 5);
$plot->SetXTickIncrement(0.1);
$plot->SetYTickIncrement(0.1);

# Move axes and ticks to 0,0, but turn off tick labels:
$plot->SetXAxisPosition($yMid); # Is default
$plot->SetYAxisPosition($xMid);
$plot->SetXTickPos('xaxis');
$plot->SetYTickPos('yaxis');

# Turn on 4 sided borders, now that axes are inside:
$plot->SetPlotBorderType('full');

# Draw both grids:
$plot->SetDrawXGrid(True);
$plot->SetDrawYGrid(True);  # Is default

$plot->DrawGraph();

//for($i=0;$i<count($xArray);$i++){
//  $data[] = array('',$xArray[$i],$yArray[$i]);
//}

?>

Any help will be much appreciated! thanx