以下的例子介绍了g:regressionLine标签常用方法，在创建jsp页面之前，需要创建为数据表提供数据的托管Bean：

@ManagedBean(scope=ManagedBeanScope.REQUEST)
public class RegressionData extends ArrayDataModel
{
    private static final Point2D[] data = {
        new Point2D.Double(2.0, 56.27),
        new Point2D.Double(3.0, 41.32),
        new Point2D.Double(4.0, 31.45),
        new Point2D.Double(5.0, 18.05),
        new Point2D.Double(6.0, 24.69),
        new Point2D.Double(7.0, 19.78),
        new Point2D.Double(8.0, 20.94),
        new Point2D.Double(9.0, 16.73),
        new Point2D.Double(10.0, 14.21),
        new Point2D.Double(11.0, 12.44),
    };

    public RegressionData() {
        super(data);
    }
}

下面是涉及RegressionLine的页面代码，在这个例子中提供了两种不同type属性的RegressionLine：

<g:scatterChart title="Regression Demo 2" showLegend="true"> 
  <g:xyDataSeries value="#{RegressionData}" var="p"> 
    <g:xyDataItem legend="Sample" x="#{p.x}" y="#{p.y}"> 
      <g:regressionLine type="Linear" legend="Linear"/> 
      <g:regressionLine type="Power" legend="Power"/> 
    </g:xyDataItem> 
  </g:xyDataSeries> 
</g:scatterChart>