Points in the curve, where either the Y component or the X component is void, cannot be drawn. If you use the Connection Line display format, you can specify whether void points are to be bridged or whether they should appear as gaps in the curve.
Do the following:
1.If the diagram is in a document or a worksheet, double-click on the diagram to open it.
2.Double-click on the curve or on the axis label of the curve for which you would like to adjust the settings.
3.In the dialog box that appears, click on the Connection Line tab.
4.Check or uncheck the Bridge void values option.