What Happened to the SrcWorkspace Name-Value Input to the sim() Command?

The SrcWorkspace Name-Value pair argument to the sim() command seems to have disappeared going from 2020b to 2021a. I searched the 2021a Release Notes and could find no mention of its removal. Did I miss that in the ReleaseNotes? More importantly, how does one implement that functionality now?

Answer 1

[Paul]

Looks like one has to use a Simulink.SimulationInput object as the input to the sim() command.

[Tamas Rozsa]

True.

In fact, 'SrcWorkspace' is also buggy and does not work well with data dictionaries (see e.g. https://www.mathworks.com/matlabcentral/answers/367223-using-srcworkspace-with-data-dictionaries), so Simulink.SimulationInput seems to be the way to go.

Another reason to avoid 'SrcWorkspace' might be that it seems to have issues also when using with the parallel computing command 'parfor' (see e.g. https://www.mathworks.com/matlabcentral/answers/94215-how-can-i-set-the-source-workspace-to-caller-when-using-a-the-sim-command-from-a-function-in-simul).

Answer 2

[Felipe Padua]

It's present in R2022a documentation.

[Paul]

Yes, it is.

But it's not in the 2021a documentation. Nor is it in the 2021b documentation.

Maybe it's just a deficiency in the 2021a/b doc? Seems kind of weird.

[Felipe Padua]

Yes, it's very strange.

[Paul]

Just tested 2021b, and SrcWorkspace works. Good to know.