Help fixing fopen error in code

MATLAB is not letting me create breaks between text…

Hi y’all,

I am trying to sun the following code:

files=dir('txt*.txt'); %additional filter so i didn't read in my merged file
fileout='merged.txt';
fout=fopen(fileout,'w');
for cntfiles=1:length(files)
    fin=fopen(files(cntfiles).name);
    temp = fread(fin,'uint8');
    fwrite(fout,temp,'uint8');
    fprintf(fout,'\n');
    fclose(fin);
end
fclose(fout);

From: https://www.mathworks.com/matlabcentral/answers/218835-merging-multiple-text-files

When I run it, I get an error:

Error using fread.

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

But I am using fopen. I don’t know how to resolve this issue.

Answer 1

[Walter Roberson]

 filename = fullfile(files(cntfiles).folder, files(cntfiles).name);
 [fin, msg] = fopen( filename );
 if fin < 0
        error('failed to open "%s" because "%s"', filename, msg);
 end