Select Options® Global options to call up the Global Options dialog window.
The Suppress zeros option applies only to the Lines graph type (for 2D graphs) and all 3D graph types.
If the Suppress zeros option is off, and a zero value occurs in the data, the Lines graph (2D) dips to zero for that value. For a 3D graph, a flat surface indicates where the graph object should be.
The following figure contains a Lines 2D graph with no suppression of zeros.
Turning on the option (see the following figure) allows you to display nothing for zero values in a graph. In a Lines 2D graph, the line becomes discontinuous around the zero-value: its neighbors do not connect with each other. In a 3D graph, no object appears at all.
The following figure contains a Lines 2D graph with suppression of zeros.
There is some interplay between the Suppress zeros and Interpolate options. If the Suppress zeros option is on, a discontinuity appears in the graph. However, if the Interpolate option is simultaneously on, no hole occurs in the graph. The line directly connects the two neighbors of the zero value. It does not dip to zero, as it would if you were not suppressing the zeros.