General Plot Properties

You can use the Reference Lines tab (Figure 9.18) to set attributes of reference lines that are displayed in the background of a plot.

Figure 9.18: The Reference Lines Tab

The Reference Lines tab contains the following UI controls:

Style: specifies the style of the line used for reference lines.
Width: specifies the width of the line used for reference lines.
Color: specifies the color of the line used for reference lines.
Show X reference lines: specifies whether to show reference lines for the X axis. These are vertical lines that originate at each tick mark on the X axis.
Show Y reference lines: specifies whether to show reference lines for the Y axis. These are horizontal lines that originate at each tick mark on the Y axis.