Question regarding writing data to txt file
1 Ansicht (letzte 30 Tage)
Ältere Kommentare anzeigen
jana
am 26 Okt. 2014
Kommentiert: Azzi Abdelmalek
am 26 Okt. 2014
Hi,
I have the following matrices:
A = [10,8,6;1,4,5]
B = [3,4,7;8,9,10]
I would like to print my data to a txt file that displays the name of the matrix, followed by row and column index of the data followed by the specific value for that column and row. For example:
A,1,1,10,1,2,8,1,3,6,2,1,1,2,2,4,2,3,5
B,1,1,3,1,2,4,1,3,7,2,1,8,2,2,9,2,3,10
Please help!..I am new to matlab
0 Kommentare
Akzeptierte Antwort
Image Analyst
am 26 Okt. 2014
This should be rather straightforward and easy to understand. If not, ask.
A = [10,8,6;1,4,5]
B = [3,4,7;8,9,10]
fid = fopen('delete_me.txt', 'wt');
% Print out the line for A
[rows, columns] = size(A);
fprintf(fid, 'A');
for col = 1 : columns
for row = 1 : rows
fprintf(fid, ',%d,%d,%d', row, col, A(row, col));
end
end
% Now for the B matrix.
[rows, columns] = size(B);
fprintf(fid, '\nB');
for col = 1 : columns
for row = 1 : rows
fprintf(fid, ',%d,%d,%d', row, col, B(row, col));
end
end
fclose(fid);
% In the file, there should be this:
% A,1,1,10,1,2,8,1,3,6,2,1,1,2,2,4,2,3,5
% B,1,1,3,1,2,4,1,3,7,2,1,8,2,2,9,2,3,10
0 Kommentare
Weitere Antworten (1)
Azzi Abdelmalek
am 26 Okt. 2014
A = [10,8,6;1,4,5]
[n,m]=size(A)
[ii,jj]=ind2sub(size(A),1:numel(A))
iA=reshape(ii,n,m)'
jA=reshape(jj,n,m)'
A=A'
s1=sprintf('%d,%d,%d,',[iA(:)';jA(:)';A(:)'])
2 Kommentare
Azzi Abdelmalek
am 26 Okt. 2014
A = [10,8,6;1,4,5]
[n,m]=size(A)
[ii,jj]=ind2sub(size(A),1:numel(A))
iA=reshape(ii,n,m)'
jA=reshape(jj,n,m)'
A=A'
fid=fopen('file.txt','w')
fprintf(fid,'%d,%d,%d,',[iA(:)';jA(:)';A(:)'])
fclose(fid)
Siehe auch
Kategorien
Mehr zu Text Data Preparation finden Sie in Help Center und File Exchange
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!