Hello everyone, I am trying to call a Julia algorithm from MATLAB. Looking at https://github.com/juliamatlab/ I found the: mexjulia jlcall I tried both and, after making some corrections (because are meant for Julia 0.6), I was able to compile the mex file. Following the instructions on the REA…

I have been using this fork of Mex.jl for a while now: https://github.com/jebej/Mex.jl/ I have tested it on Windows with MATLAB > R2018.

[image] Vangelis: Did anyone succeed to call Julia from MATLAB? I didn’t even try (didn’t need to), but I’ve called in the other direction. And also to Octave (a MATLAB clone). That’s not a really useful to know information (unless you can do callbacks), but I bring it up as there may be oth…

thanks @jebej for the suggestion! I tried to follow the steps on the REAMDE, but I was not able to proceed with the build step. What should I run on the MATLAB side to start the build? thanks!!

Thanks for the answer @Palli ! Indeed what you suggest would have been easier, but I need to send Julia models to MATLAB users. That’s why I am looking into that… About calling to Python first and then to Julia, it could be an option, although it increases the overhead. I hope @jebej ’s fork could…

Mex.jl also worked for me. I had a similar need: [image] Passing strings from Matlab to Julia and back using Sockets General Usage I needed a simple communication channel between Matlab and Julia. Maybe this will help someone, so here’s the code (spoiler alert, everything …

[image] Vangelis: but I need to send Julia models to MATLAB users. It’s not clear to me, that changes much. You need to have julia (the runtime) set up, and not a problem, with calling to Python first you need it set up too. For my direction, there’s no great overhead to call Python, at least…

Are you sure you used my fork? I didn’t change the URL in the readme. If you did, what is the error? Does MATLAB.jl work?

Yes, I used your fork :slightly_smiling_face: I installed MATLAB.jl on Julia but for the Mex.jl I got an error that it couldn’t find matlab. So, I tried to re-install it and it seemed that it worked, so now both (MATLAB.jl and Mex.jl) are visible in the Julia. Moving to the MATLAB environment I wa…

The compilation is actually triggered by julia via MATLAB.jl when you build Mex.jl, so now that you are sure MATLAB.jl works, try ]build Mex

right!!! and the error is: ERROR: LoadError: MATLAB.MEngineError("failed to get variable matlab_jl_has_ans from MATLAB session") Do you think I miss something on the matlab side?

It looks like MATLAB.jl is not working properly. Make sure you follow JuliaInterop/MATLAB.jl You should be able to call mat"2+2" and see the result.

Calling Julia from MATLAB

General Usage

Iulian.Cioarca December 9, 2020, 7:44pm 6

Mex.jl also worked for me. I had a similar need:

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Calling Julia from MATLAB

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