How to pass filepath to MATLAB executable

Hi All,

I have created a executable using the application complier.

The function requires the input file path

function main(filepath)

I am not sure how to pass the file path as an input argument to the executable generated using the about funciton.

I tried

!main 'I:\project\task'

but this is not working.

Suggestions will be really helpful.

[Jan]

"This is no working" is too lean to explain, what happens. Prefer to mention, what you observe. This helps to solve your problem.

[Deepa Maheshvare M.]

Sorry about missing out on the error details.

function main(TASK_DIR)
tbl = readtable(fullfile(TASK_DIR,'input.xlsx'));

I see the following error message

>> !main char(task_dir)

ans = 

'char(task_dir)' 

....read data  
    Error using readtable (line 318) 
Unable to find or open 'char(task_dir)\input.xlsx'. Check the path and filename or file permissions. 

Answer 1

[Rik]

You're using Matlab syntax to define a char vector, but that is something that will happen automatically.

You can experiment with this tester function:

function main(varargin)
for n=1:nargin
    fprintf('input number %d has class %s and contains this:\n',n,class(varargin{n}))
    disp(varargin{n})
    fprintf('\n')
end
end

To avoid syntax error caused by DOS itself you should consider

!main "I:\project\task"

You can test the effect quickly by using ECHO so you get immediate feedback about any syntax issues.

Edit after your comment to Jan:

You probably want this:

[status,response]=dos(['main ' taskdir]);

That will send the char contained in taskdir as the argument to the function main.

[Deepa Maheshvare M.]

@Rik,

I'm sorry, I am a bit confused

Could you please tell me how to run the executable from MATLAB's command window?

I do

!main

on the command window to run the main.exe file when I don't have to pass input arguments. Now, I am not sure how to pass the filepath.

[Rik]

Did you try any of my suggestions? I gave three, you don't appear to have tried any of them.

[Deepa Maheshvare M.]

I had tried the last option which didn't work for me.

The second suggestion works great! Thanks a lot.

[Rik]

Glad you found a solution, happy to help.