How to set the depth of the waterfall plot?

The waterfall lines can be spaced too far apart if there are many lines in the plot. The depth axis may disappear into the distance.

The easiest way of setting this is by using the 3D Plot Toolbar. Click the  button and the click and drag in the waterfall plot to change the depth.

This can also be solved from Plot->Layout->Edit..., select the 3D tag as shown below.

One method is to change the z-axis density, which is adjusted in the percent 3D dialog box shown below.

Another method is to turn off  and change the Rotation and Elevation values.

Selecting another layout mode can also solve this problem. Go to Plot->Plot Type Settings->Waterfall…. In the dialog select Waterfall or Surface in the layout mode list box.