plot

Open the model vdp, which models the second-order Van der Pol differential equation. You can use the plot function to plot the simulation results in the Simulation Data Inspector.

mdl = "vdp";
open_system(mdl)

Configure the model to log signals, outputs, and states.

set_param(mdl,"SignalLogging","on")
set_param(mdl,"SaveOutput","on")
set_param(mdl,"SaveState","on")

Mark the x1 and x2 signals for logging.

Simulink.sdi.markSignalForStreaming('vdp/Mu',1,'on')
Simulink.sdi.markSignalForStreaming('vdp/Product',1,'on')
Simulink.sdi.markSignalForStreaming('vdp/Square',1,'on')
Simulink.sdi.markSignalForStreaming('vdp/Sum',1,'on')

Simulate the model and return all logged data as a single simulation output named out. The model logs data using the Dataset format, so all the logged data streams to the Simulation Data Inspector during simulation.

out = sim(mdl);

Use the plot function to plot all the simulation results in the Simulation Data Inspector. The Simulation Data Inspector updates to a 1-by-8 layout and plots one signal on each subplot.

plot(out)

You can also use the plot function to plot data for a single signal or a subset of the simulation results. When you plot the data for a single signal, the Simulation Data Inspector always imports the data for the signal into a new run.

The Simulink.SimulationOutput object contains a property for each logging variable. Access the signal logging data in the property logsout.

logsout = out.logsout

logsout = 
Simulink.SimulationData.Dataset 'logsout' with 4 elements

                         Name  BlockPath   
                         ____  ___________ 
    1  [1x1 Signal]      ''    vdp/Mu     
    2  [1x1 Signal]      ''    vdp/Product
    3  [1x1 Signal]      ''    vdp/Square 
    4  [1x1 Signal]      ''    vdp/Sum    

  - Use braces { } to access, modify, or add elements using index.

Use the get function for the Dataset object to access the data for the first element, which contains the data for a single logged signal.

sig1 = get(logsout,1);

When you plot the signal data, the Simulation Data Inspector imports the signal into a new run, updates the layout to 1-by-1, and plots the signal.

plot(sig1)

Create two timeseries objects.

ts1 = timeseries([0;20],[0;10]);  
ts2 = timeseries([0;40],[0;10]);  

Create a Dataset object. Then, add the timeseries objects to the Dataset object.

ds = Simulink.SimulationData.Dataset;
ds = addElement(ds,ts1,"timeseries1");
ds = addElement(ds,ts2,"timeseries2");

Plot the Dataset object in the Simulation Data Inspector.

plot(ds)