Saving Output of loop iterations in a file (mat, CSV).

Hi I want to save the output of three nested for loops in a mat file or CSV so as to be used later in processing with neural network. the code is as follow;

for z=1:1:20
for y=1:1:20
for x=1:1:20
c=readfis('myfile');
out=evalfis([x y z],c);
data=[x y z out];
save('output.mat',data);
end
end
end

 so I want to save the output of each iteration in a separate row in the output mat file.
Thanks

Answer 1

[Himanshu]

Hi Hany,

To save the output of the nested loops in a mat/csv file, you would have to accumulate the results in an array or table and then save that array or table after the loops have completed. This is how you can do it for the .mat file:

% Initialize an empty array to store results
results = [];

for z = 1:20
    for y = 1:20
        for x = 1:20
            c = readfis('myfile');
            out = evalfis([x y z], c);
            % Append the result of this iteration to the results array
            results = [results; x, y, z, out];
        end
    end
end

% Save the results array to a .mat file
save('output.mat', 'results');

A similar approach can be taken for csv file as well. In that case, you would have to convert the array to a table first, and then write the table to a csv file.