improved visualization

tools.descartes.pavo/src/tools/descartes/pavo/types/DifferenceChart.java

@@ -115,7 +115,7 @@ public class DifferenceChart extends AbstractVisualizationType implements IVisua
 			if (r instanceof ValueResultPavo) {
 				ValueMarker marker = new ValueMarker(((ValueResultPavo) r).getValue());
 				marker.setPaint(Color.green);
-				marker.setLabel(((ValueResultPavo) r).getName());
+				marker.setLabel(((ValueResultPavo) r).getStatisticType());
 				marker.setLabelAnchor(RectangleAnchor.BOTTOM_RIGHT);
 				marker.setLabelTextAnchor(TextAnchor.TOP_RIGHT);
 				((XYPlot) chart.getPlot()).addRangeMarker(marker);