<?php // content="text/plain; charset=utf-8"
require_once ('jpgraph/jpgraph.php');
require_once ('jpgraph/jpgraph_line.php');

// Some (random) data
$ydata = array(17,3,'',10,7,'',3,19,9,7);

// Size of the overall graph
$width=350;
$height=250;

// Create the graph and set a scale.
// These two calls are always required
$graph = new Graph($width,$height);
$graph->clearTheme();
$graph->SetScale('intlin');
$graph->SetShadow();

// Setup margin and titles
$graph->SetMargin(40,20,20,40);
$graph->title->Set('NULL values');
$graph->xaxis->title->Set('x-title');
$graph->yaxis->title->Set('y-title');

$graph->yaxis->title->SetFont( FF_ARIAL , FS_BOLD, 9 );
$graph->xaxis->title->SetFont( FF_ARIAL , FS_BOLD, 9 );

$graph->yaxis->SetColor('blue');

// Create the linear plot
$lineplot=new LinePlot($ydata);
$lineplot->SetColor( 'blue' );
$lineplot->SetWeight( 2 );   // Two pixel wide


// Add the plot to the graph
$graph->Add($lineplot);

// Display the graph
$graph->Stroke();
?>
