Correct Magic Square to text file?
1 次查看(过去 30 天)
显示 更早的评论
In the simple script below, why when I open myfile.txt is its composed of A and not B (the transpose of A), even though I asked for the latter in the last line
A = magic(4);
B=A';
fileID = fopen('myfile.txt','w');
nbytes = fprintf(fileID,'%5d %5d %5d %5d\n',B);
1 个评论
Stephen23
2022-1-21
A much simpler way to save the matrix is to use WRITEMATRIX or DLMWRITE or similar.
回答(2 个)
Rik
2022-1-21
Your file is written row by row, while Matlab will read the data in B column by column.
So while most people would not expect this behavior, it is actually the expected behaviour.
You will have to transpose the the array again (or use the original).
Image Analyst
2022-1-21
Try this:
% Create matrix.
A = magic(5)
% Write it out to a text file.
filename = fullfile(pwd, 'A Magic 5.txt')
writematrix(A, filename, 'Delimiter', ' ');
% Verify by typing it to the command window.
type(filename)
%delete(filename)
另请参阅
类别
在 Help Center 和 File Exchange 中查找有关 Text Files 的更多信息
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!