try catch loop to evaluate what contains in the folder

If I have a function evaluate the files exist in the directory. I want if there is an error in evaluation of one first file go to the next file and evaulate it until all the files are evaluated. simlpy try and catch loop.

for example:

for i=number of files
    try
        eval.fun(file(i))
    catch ME
        sprintf( ' error in %s', file.name(i))
    end
end

[Stephen23]

"If I have a function evaluate the files..."

Unclear terminology: text can be evaluated, but files can be run (scripts) or called (functions) or imported (data). What are the files exactly: do they contain code?

[ayman mounir]

let's say I have excel files and I extract data from them and do some calculations during this process could the errors happen. is it now clear ?

[Stephen23]

"let's say I have excel files and I extract data from them..."

That is importing the file data. Importing file data is nothing like evaluating code.

I recommend reading the MATLAB documentation:

https://www.mathworks.com/help/matlab/import_export/process-a-sequence-of-files.html

https://www.mathworks.com/help/matlab/standard-file-formats.html

"...and do some calculations during this process could the errors happen."

Most likely an if would be better than try-catch. In any case, you have not said what problems you are having, or how we can help you: the basic try-catch concept you show in your question could work (although your code seems to have various other bugs).

[ayman mounir]

sorry manbe i am not clear enough,

load_files
  for i=numel(file)
        try
            evaluction=eval(file(1)))
        catch
            sprintf( ' error in %s', file.(i))
    end    
end

this should try to perform the code for file(1) if error happens then perform the code for file(2) until the last file i have uploaded

thanks

[Stephen23]

"this should try to perform the code for file(1) if error happens then perform the code for file(2) until the last file i have uploaded"

I doubt it. You do not define file anywhere in your code, but if it is some kind of array of filenames then your code won't do anything like what you state, for the reasons that I have already explained in my previous comments. Perhaps you should read the MATLAB documentation links that I gave you.

Without knowing what load_files and file are, we have no idea what your code does.

[Stephen23]

Continued here: https://www.mathworks.com/matlabcentral/answers/475924-forcing-try-catch-loop-during-using-another-script

Answer 1

[Walter Roberson]

evaluction=eval(file(1)))

We do not know what the data type is of file, but in all of the cases that come to mind, eval() does not return a value.

Also I suspect that file might be file names, in which case you are more likely to need file{i}