<?php
...

$averagedata->addPoints($wagers,"WAGER");
$averagedata->addPoints($average,"MEDIA");

$averagedata->setAbscissa("WAGER");
$averagedata->setAxisDisplay(0,AXIS_FORMAT_DEFAULT,1);
$averagedata->loadPalette("palettes/green",TRUE);

$averagepicture = new pImage(640,480,$averagedata);

$averagepicture->setFontProperties(array("FontName"=>"fonts/verdana.ttf","FontSize"=>9));

$averagepicture->setGraphArea(120,20,600,460);
$averagepicture->drawGradientArea(70,160,640,200,DIRECTION_HORIZONTAL,array("StartR"=>0,"StartG"=>0,"StartB"=>0,"EndR"=>0,"EndG"=>0,"EndB"=>0,"Alpha"=>0));
[b]$scaleSettings = array("ScaleSpacing"=>10,"RemoveXAxis"=>TRUE,"DrawXLines"=>FALSE,"DrawYLines"=>NONE,"Mode"=>SCALE_MODE_START0,"DrawSubTicks"=>FALSE,"GridR"=>0,"GridG"=>0,"GridB"=>0,"GridAlpha"=>0,"Pos"=>SCALE_POS_TOPBOTTOM);[/b]
$averagepicture->drawScale($scaleSettings);
$averagepicture->drawBarChart(array("DisplayPos"=>LABEL_POS_OUTSIDE,"DisplayValues"=>TRUE,"Rounded"=>TRUE,"Surrounding"=>30));

$averagepicture->autoOutput("examples/pictures/averagepicture.png");

?>

$scaleSettings = array("DrawYLines"=>NONE,"Mode"=>SCALE_MODE_START0,"GridR"=>0,"GridG"=>0,"GridB"=>0,"GridAlpha"=>0,"Pos"=>SCALE_POS_TOPBOTTOM);
$averagepicture->drawScale($scaleSettings);