$graph

->yaxis->title->SetFont( FF_FONT1 , FS_BOLD );

$graph

->xaxis->title->SetFont( FF_FONT1 , FS_BOLD );

$graph

->yaxis->SetColor(‘blue’);

// Create the linear plot

$lineplot

=

new

 LinePlot(

$ydata

);

$lineplot

->SetColor( ‘blue’ );

$lineplot

->SetWeight( 2 );   

// Two pixel wide

$lineplot

->mark->SetType(MARK_UTRIANGLE);

$lineplot

->mark->SetColor(‘blue’);

$lineplot

->mark->SetFillColor(‘red’);

// Add the plot to the graph

$graph

->Add(

$lineplot

);

// Display the graph

$graph

->Stroke();

?>