repeat rows and export to txt file
조회 수: 2 (최근 30일)
이전 댓글 표시
I read in a txt file containing n colums and n rows. I need to repeat each row x number of times and then export the new file to a txt document. I.E
A=importdata('file.txt')
A = [1;2;3;4]
x= 3
A = [1;1;1;2;2;2;3;3;3;4;4;4]
exportdata('NewFile.txt')
댓글 수: 4
Mohsin Zubair
2021년 7월 8일
@Jacob Weiss I told you that how can you create your desired output but to export it, there are many ways to do so, it depends how or in whih format you want to export your data, also can you share your orignal text file with data?
Mohsin Zubair
2021년 7월 8일
well what I told is just using loops which isn't good for long file, what scott told you is much better for file of your size
답변 (1개)
Scott MacKenzie
2021년 7월 8일
편집: Scott MacKenzie
2021년 7월 8일
I think this is more or less what you're after:
% test data (read from file)
A = [1 8;2 7;3 6;4 5]
x = 3; % number of times to repeat each row (change as desired)
A1 = repmat(A', x, 1);
A2 = reshape(A1, size(A,2), [])'
% write to file
댓글 수: 9
Scott MacKenzie
2021년 7월 9일
@Rik. Thanks. Yes indeed, much simpler. @Jacob Weiss with Rik's simplification, something like this will also work...
f = 'https://www.mathworks.com/matlabcentral/answers/uploaded_files/678488/Raj_AZ31_16120.txt';
A = readmatrix(f);
x = 3; % number of times to repeat each row (change as desired)
B = repelem(A, x, 1);
writematrix(B,'newfile.txt');
참고 항목
카테고리
Help Center 및 File Exchange에서 Whos에 대해 자세히 알아보기
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!