Understanding relative paths when running compiled Matlab executable

I have an issue which I think is a result of my lack of understanding of how relative paths work in Matlab and I was wondering if someone could help me. Effectively, I have an Matlab executable (.exe) that I want to run from my own code.

Basically my folder structure is the following:

MyProject/

MyCode/

ThirdPartyMatlabModel /

MatlabModel.exe

Data /

The data ingested by the model

If I run MatlabModel.exe from windows explorer everything works fine and the model works.

However when I try to run the executable from the my code I end up with the following error messages.

Error using textscan

Invalid file identifier. Use fopen to generate a valid file identifier.

Error in parseINI

MATLAB:FileIO:InvalidFid

Does Matlab take relative paths from where the EXE is run from?

Does anyone have any suggestions as to how to rectify this issue?

Thank you for any response.

[Rik]

Wouldn't this be easy to check by inserting a dialog box that displays the pwd?

One thing you could try is using the mfilename function to find the location of your exe. I don't know if that would work, but it is worth a try.

[TabularConferta]

Unfortunately I don't have access to non-obscured Matlab source code. I only have access to the EXE and the folder with the ingested data. I should be able to get in contact with the third party, it will just take a bit of a time and bottle necks my work. So I guess I'm also trying to understand the issue further, to see if there is something on my side I can fix or if I have to message them.

[Walter Roberson]

"Does Matlab take relative paths from where the EXE is run from?"

Only if it was created as a console application and you are running it from inside a terminal window.

[TabularConferta]

Thank you. I'll need to get in contact with the source and see if I can get them to rebuild it.

[Walter Roberson]

https://blogs.mathworks.com/loren/2008/08/11/path-management-in-deployed-applications/