Hi,
Data can be saved to the MATLAB workspace/mat file through a Simulink Scope block. For data to be saved, you need to set Scope block parameters.
For saving data in workspace, Refer to the documentation page: Set Scope Parameters for Logging to Workspace
For storing in a mat file, Refer to the documentation page: Signal Logging to a File
Once you select the required options and save the data, load the data in the app designer and then plot using the variables.
Hope this helps!
