Linear Analysis examples > Example 3: Frequency response analysis with a mass-spring damper system
Selecting variables
You can make multiple selections of observer or control variables:
Figure 95: Selecting multiple control variables
When you have selected several Control variables, you can then select one of the Observer variables for the plot
Figure 96: Multiple control variable plot
Note
If you have selected, for example, two Control variables, you cannot select two Observer variables (in other words, change the multi-selection) until you click again on one of the two selected Control variables to remove the multi selection.
Source: https://docs.sw.siemens.com/en-US/doc/254352342/PL20250521841123434.amesim_collection.Linear_Analysis/Selecting_variables · retrieved 2026-07-17