How to write matrix to txt or excel file with specific precision

12 次查看（过去 30 天）
ahmad eldeeb
ahmad eldeeb 2018-10-7
编辑： Stephen23 2018-10-7
I have a 100*100 matrix that I need to save it in a txt or excel file with high precision. This the code I use:
fid = fopen('data.txt', 'w+');
for j = 1:size(s, 2)
for i = 1:size(s, 1)
fprintf(fid, '%2.20f \n', s(i,j));
end
end
The problem in the output, it saves all the values in one line. Any ideas.

请先登录，再回答此问题。

采纳的回答

Stephen23
Stephen23 2018-10-7
编辑：Stephen23 2018-10-7
You don't need a loop. Try this:
M = your matrix
fmt = repmat(',%2.20f',1,size(M,2));
fmt = [fmt(2:end),'\n'];
[fid,msg] = fopen('data.csv', 'wt');
assert(fid>=3,msg)
fprintf(fid,fmt,M.')
fclose(fid);

更多回答（0 个）

类别

在 Help Center 和 File Exchange 中查找有关 Environment and Settings 的更多信息

标签

产品


版本

R2017b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by