void	Try()
{
	GraphPage		gPage;
	gPage.Create("Origin");
			
	GraphLayer		lay;
	lay = gPage.Layers(0);


	// a dataplot in the layer that uses Data1_Time as Y and Data1_Test1 as X
	Curve			cc("Data1_Time", "Data1_Test1");
	int			nPlotIndex = lay.AddPlot(cc, IDM_PLOT_SCATTER);
	out_int("nPlotIndex = ", nPlotIndex);


	// use the third column in the worksheet "Data1" for error bar:
	Column	colErrBar("Data1", 2);
	nPlotIndex = lay.AddErrBar(cc, colErrBar);
	out_int("nPlotIndex = ", nPlotIndex);
			
	lay.Rescale();
}