Use a Waterfall () plot to create a waterfall diagram, which is a plot that can illustrate how an expression depends on two parameters in a sweep. The waterfall is plotted as a 3D plot in which z-axis represents the response amplitude and x- and y-axis represent, for example, the frequency and the rotor rpm, respectively. Add a Color Expression subnode as needed. Right-click a 3D Plot Group to add this plot.

Choose the dataset for the data to use in the waterfall plot from the Dataset list. Depending on the selected study type, you can further select the times, parameters, or eigenfrequencies to use.

Here you select the points for which to plot a waterfall plot. From the Selection list, select Manual to select points directly in the Graphics window or in the list below, or select All points.

In the x-Axis Data and y-Axis Data sections, specify what those axes represent by entering an expression (for example, freq for the frequency) in the Expression field. In addition, choose a compatible unit from the Unit list and select the Description check box to add a description of the expression in the associated text field. Click the Replace Expression () or Insert Expression () button to select predefined expressions to use in the Expression field.

From the Style list, choose Line to only plot the waterfall diagram using lines, Surface to only plot it as a surface plot, or Both to use lines and a surface plot. For Surface and Both, you can also choose the color table to use for the surface plot from the Color table list.