Open the Simulation Data Inspector



Simulink.sdi.view opens the Simulation Data Inspector. You can write a script to plot your data and customize the Simulation Data Inspector properties and then use Simulink.sdi.view to see the results.


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You can open the Simulation Data Inspector from the MATLAB® command line to visualize, inspect, and analyze your data.


This example shows how to create a run, add data to it, and then view the data in the Simulation Data Inspector.

Create Data for the Run

This example creates timeseries objects for a sine and a cosine. To visualize your data, the Simulation Data Inspector requires at least a time vector that corresponds with your data.

% Generate timeseries data
time = linspace(0, 20, 100);

sine_vals = sin(2*pi/5*time);
sine_ts = timeseries(sine_vals, time);
sine_ts.Name = 'Sine, T=5';

cos_vals = cos(2*pi/8*time);
cos_ts = timeseries(cos_vals, time);
cos_ts.Name = 'Cosine, T=8';

Create a Simulation Data Inspector Run and Add Your Data

To give the Simulation Data Inspector access to your data, use the create method and create a run. This example modifies some of the run's properties to help identify the data. You can easily view run and signal properties with the Simulation Data Inspector.

% Create a run
sinusoidsRun = Simulink.sdi.Run.create;
sinusoidsRun.Name = 'Sinusoids';
sinusoidsRun.Description = 'Sine and cosine signals with different frequencies';

% Add timeseries data to run
sinusoidsRun.add('vars', sine_ts, cos_ts);

Plot Your Data Using the Simulink.sdi.Signal Object

The getSignalByIndex method returns a Simulink.sdi.Signal object that can be used to plot the signal in the Simulation Data Inspector. You can also programmatically control aspects of the plot's appearance, such as the color and style of the line representing the signal. This example customizes the subplot layout and signal characteristics.

% Get signal, modify its properties, and change Checked property to true
sine_sig = sinusoidsRun.getSignalByIndex(1);
sine_sig.LineColor = [0 0 1];
sine_sig.LineDashed = '-.';
sine_sig.Checked = true;

% Add another subplot for the cosine signal
Simulink.sdi.setSubPlotLayout(2, 1);

% Plot the cosine signal and customize its appearance
cos_sig = sinusoidsRun.getSignalByIndex(2);
cos_sig.LineColor = [0 1 0];
cos_sig.plotOnSubPlot(2, 1, true);

% View the signal in the Simulation Data Inspector

Close the Simulation Data Inspector and Save Your Data



You can open the Simulation Data Inspector from the Simulink® Editor toolbar with the Simulation Data Inspector button .

Introduced in R2011b