How can I generate text file in loop?

I need to generate text file in MATLAB which will be edited in every loop. When I use fopen without using fclose MATLAB gives error. and if I use fclose file is overwritten in every iteration and only data from last iteration is stored.

[Jan]

Without seeing the code, we cannot guess, where the problem is. When you state, that you get an error, showing the code and posting a complete copy of the error message is the obligatory strategy to obtain help from the readers. So I suggest to edit the original question and provide the required information.

[Ioannis]

Suggestion, why don't you manipulate a .mat file, in which you can append data in each iteration, and then save the whole thing to .txt.

Answer 1

[Alberto]

You sould open the file with the 'append' modificator.

fid= fopen(filename, 'a')

% Use fprintf (for example) to print the stuff fprintf(fid, ...);

fclose(fid)

Also, you cant open an already opened file, or close a non opened file. Use try/catch to escape errors.