title: Jpgraph : how set label for group bar column chart in php
body: <p>here is  my jpgraph demo code: </p>
  
  <pre><code>&lt;?php // content="text/plain; charset=utf-8"
  // $Id: groupbarex1.php,v 1.2 2002/07/11 23:27:28 aditus Exp $
  require_once ('jpgraph/jpgraph.php');
  require_once ('jpgraph/jpgraph_bar.php');
  
  $datay1=array(35,160,0,0,0,0);
  $datay2=array(35,190,190,190,190,190);
  $datay3=array(20,70,70,140,230,260);
  
  $graph = new Graph(450,200,'auto');    
  $graph-&gt;SetScale("textlin");
  $graph-&gt;SetShadow();
  $graph-&gt;img-&gt;SetMargin(40,30,40,40);
  $graph-&gt;xaxis-&gt;SetTickLabels($gDateLocale-&gt;GetShortMonth());
  
  $graph-&gt;xaxis-&gt;title-&gt;Set('Year 2002');
  $graph-&gt;xaxis-&gt;title-&gt;SetFont(FF_FONT1,FS_BOLD);
  
  $graph-&gt;title-&gt;Set('Group bar plot');
  $graph-&gt;title-&gt;SetFont(FF_FONT1,FS_BOLD);
  
  $bplot1 = new BarPlot($datay1);
  $bplot2 = new BarPlot($datay2);
  $bplot3 = new BarPlot($datay3);
  
  $bplot1-&gt;SetFillColor("orange");
  $bplot2-&gt;SetFillColor("brown");
  $bplot3-&gt;SetFillColor("darkgreen");
  
  $gbarplot = new GroupBarPlot(array($bplot1,$bplot2,$bplot3));
  $gbarplot-&gt;SetWidth(0.6);
  $graph-&gt;Add($gbarplot);
  
  $graph-&gt;Stroke();
  ?&gt;
  </code></pre>
  
  <p>this code has no error and this is working perfectly...my problem is how can I set labels for this multi bars for identifying ...</p>
  
  <p>How can I set A LABELS..</p>