tvp.setROCString("(Area under ROC = " +
Utils.doubleToString(ThresholdCurve.getROCArea(curve), 4) + ")");
tvp.setName(curve.relationName());
PlotData2D plotdata = new PlotData2D(curve);
plotdata.setPlotName(curve.relationName());
plotdata.addInstanceNumberAttribute();
// specify which points are connected
boolean[] cp = new boolean[curve.numInstances()];
for (int n = 1; n < cp.length; n++)
cp[n] = true;
try {