Call embedded matlab function from command line

1 view (last 30 days)
I want to know if I can call an embedded Matlab function defined in my Simulink model from the Matlab command line. I'd like to have a unit test for each function, without having to run the simulation. Is there a way to do this?

Accepted Answer

Jacob Halbrooks
Jacob Halbrooks on 30 Jan 2014
The code for the MATLAB Function block does not exist as a stand-alone file that you can call in MATLAB. However, you can programatically get the code in MATLAB as a string using the steps in Answer 102675. From there, you could write the text to a file and then call it.
  2 Comments
John Londt
John Londt on 30 Jan 2014
This worked. Thank you! Just to summarize what I did:
- S = sfroot;
- B = S.find('Name','my_embedded_matlab_function');
- fid = fopen('test_function.m,'w');
- fprintf(fid,'%s',B.Script');
- fclos(fid);
Kaustubha Govind
Kaustubha Govind on 31 Mar 2014
Edited: Kaustubha Govind on 31 Mar 2014
Please be aware that Simulink generates code from MATLAB Function blocks for faster execution. When you test the same function in MATLAB, you are running it using the MATLAB interpreter. Please know that there may be Differences in Behavior After Compiling MATLAB Code when using fixed-point data. In such cases, the safe thing to do would be to call the Simulink model using the SIM command to test.

Sign in to comment.

More Answers (0)

Categories

Find more on Simulink Functions in Help Center and File Exchange

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!