MATLAB: How to create a .txt file in matlab to report mt output

file

Now, I have 5 outputs and i want to create a .txt file to report my outputs. The content should be these 5 sentences. How can i do that?

Best Answer

From fprintf, use fopen to create (or open) a file and write to it as

fid = fopen('myDataFile.txt', 'w+');
fprintf(fid, 'The price of N a is %f\n', A);
% etc.
fclose(fid);

Related Solutions

MATLAB: Concatenate data using fgets

You are closing the file in the loop. close the file after the loop. I assume the below should work.

function read_datapattern(filename)
fid = fopen(filename,'rt');
if fid < 0
  error('error opening file %s\n\n',filename);
end
pattern = fgets(fid);
for n = 1:32767
  nextline = fgets(fid);
  pattern = strcat(pattern, nextline);
fprintf(pattern);
fprintf('\n');
end
fclose(fid);

MATLAB: Append .txt file

To combine DateTime and data, they both need to be cell arrays, because one of them contains strings. This will work to produce a combined array

combined = [DateTime, num2cell(data)];

However, that won't solve your problem, because you can't write a cell array with dlmwrite.

One possibility is to do something like the code below, using fprintf to do the tab-separated data. Note that this code uses the original numerical data matrix, and that you may need to fiddle with the format for the numbers to get the precision you need.

outfile = 'path/output.out';
header = { ...
    '        DateTime', ...
    'data1','data2','data3','data4', ...
    'data5','data6','data7','data8', ...
    'data9','data10','data11','data12'};
fid = fopen(outfile, 'w');
if fid == -1; error('Cannot open file: %s', outfile); end
fprintf(fid, '%10s\t', header{:});
fprintf(fid, '\n');
for ii = 1:size(data, 1)
    fprintf(fid, '%s\t', DateTime{ii});
    fprintf(fid, '%10.6g\t', data(ii,:));
    fprintf(fid, '\n');
end
fclose(fid);

Best Answer

Related Solutions

MATLAB: Concatenate data using fgets

MATLAB: Append .txt file

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