Plot Signal Data Logged to Workspace

To visualize non-real-time simulated data or real-time application data, use the MATLAB^® plotting functions.

After running your real-time application and logging data to the MATLAB workspace, you can plot the data.

This procedure uses the model sldrtex_model. To open this model, in the MATLAB Command Window, type:

open_system(docpath(fullfile(docroot,'toolbox',...
    'sldrt','examples','sldrtex_model')))

It assumes that you saved your data to the variable ScopeData.

To show the structure of the variable ScopeData, in the MATLAB Command Window, type:

ScopeData

ScopeData = 
             time: [10000x1 double]
          signals: [1x1 struct]
        blockName: 'sldrtex_model/Scope'

To list the contents of the structure signals, type:

ScopeData.signals

ans = 
       values: [10000x1 double]
   dimensions: 1
        label: ''
        title: []
    plotStyle: 1

To plot the first 1000 points, type:
```
plot(ScopeData.time(1:1000),ScopeData.signals.values(1:1000))
```
The MATLAB environment plots the first 1000 samples over 0.0000–0.9990 seconds.
The variable ScopeData is not automatically saved to your hard disk. To save the variable ScopeData, type:
```
save ScopeData
```
The MATLAB environment saves the scope data to the file ScopeData.mat.

Simulink Desktop Real-Time Documentation