MATLAB: GUIDE outputting a .txt file

callbackguidelatexoutputpushbuttontxt

Hi all,

I'm working on a GUI that generates reports based on some input data. I'm currently trying to produce a text based output that can be printed. Ideally, I'd like to make and save a .txt file that can be copied into a LaTeX compiler.

So, from the callback on a pushbutton, how would I output a .txt file that could be saved somewhere?

This is my first experience with MATLAB coding, so any help would be appreciated. Even just pointing me in the right direction would be great.

Best Answer

Look up fopen, fprintf, and fclose. Your code will be something like this:

fid = fopen('filename.txt','w');
fprintf(fid,'%f %s\n',your_numeric_var,your_string);
fclose(fid);

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MATLAB: How to replace a portion of data with another

This works. The example input and output files are attached.

newData = [1,2;3,4;5,6;7,8];
newName = 'blah.prw';
fid = fopen('oldfile.txt', 'rt');
fod = fopen('newfile.txt', 'wt');
for k = 1:3
    fprintf(fod,'%s\n',fgetl(fid));
end
str = regexprep(fgetl(fid),'\w+\.prw',newName);
fprintf(fod,'%s\n',str)
cmp = ' !-';
while ~isequal(intersect(str,cmp),cmp)
    str = fgetl(fid);
    fprintf(fod,'%s\n',str)
end
fprintf(fod,'          %.7f          %.7f\n',newData.')
while ~isempty(str)
    str = strtrim(fgetl(fid))
end
fprintf(fod,'          \n')
while ~feof(fid)
    fprintf(fod,'%s\n',fgetl(fid))
end
fclose(fid);
fclose(fod);

MATLAB: I’d like to create a loop that each time adds a new line to a .txt file.

fid = fopen('Output.txt', 'wt');
for K = 1 : 10000
    my_vector = randi(10,1,4);   %generate vector
    fprintf(fid, '%d %d %d %d\n', my_vector);   adds new vector to text file
end
fclose(fid);

Best Answer

Related Solutions

MATLAB: How to replace a portion of data with another

MATLAB: I’d like to create a loop that each time adds a new line to a .txt file.

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