plotComparison

You can use the function plotComparison to plot comparison results to a Simulink.sdi.CustomSnapshot object. This example uses data collected by simulating a model of an aircraft longitudinal flight control system and captures a snapshot of the contents of the comparison results in the Simulation Data Inspector. When you use a Simulink.sdi.CustomSnapshot object to create the snapshot, you can adjust the look of the figure without affecting the Simulation Data Inspector. For more information about the model, see Aircraft Longitudinal Flight Control.

First, load the session file that contains the data to compare. The session file contains data for four simulations of an aircraft longitudinal controller. This example compares data from two runs that use different input filter time constants.

Simulink.sdi.load("AircraftExample.mldatx");

Access the run IDs that correspond to the last two simulation runs.

runIDs = Simulink.sdi.getAllRunIDs;
baselineID = runIDs(end-1);
comparedToID = runIDs(end);

Use the Simulink.sdi.compareRuns function to compare the last two runs. Specify a global time tolerance of 0.8.

diffResult = Simulink.sdi.compareRuns(baselineID,comparedToID,"TimeTol",0.8);

Use the getResultsByName function to access the comparison results for the q rad/sec signal.

qResult = getResultsByName(diffResult,"q, rad/sec");

Create a Simulink.sdi.CustomSnapshot object and plot the comparison results on it. Then, use the snapshot function to generate the figure.

snap = Simulink.sdi.CustomSnapshot;
plotComparison(snap,qResult);
snapshot(snap,"To","image");