Creating text file with columns of data

Question

g 2018-11-27

2
链接

此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/432359-creating-text-file-with-columns-of-data

编辑： lb_net 2020-8-25

How do I create a text file with two columns of text correspond to columns of data?

I currently have

data = [a b];
% a and b are columns
fileID = fopen('textfile.txt','w');
fprintf(fileID,'%f %f\n',data);
fclose(fileID);

This creates two columns in textfile.txt, however, all of the "a" data is listed before the "b" data, instead of in 2 columns with the separate data. How do I get the proper data in each respective column of the text file? Thanks

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

per isakson 2018-11-27

See tprintf by per isakson

请先登录，再进行评论。

请先登录，再回答此问题。

Answer 1

Fangjun Jiang 2018-11-27

1
链接

此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/432359-creating-text-file-with-columns-of-data#answer_349229

In this case, you can use

fprintf(fileID,'%f %f\n',data')

1 个评论
显示 -1更早的评论隐藏 -1更早的评论

lb_net 2020-8-25

编辑：lb_net 2020-8-25

在 MATLAB Online 中打开

Do you have an idea if I can also save additional values in the text file?

a = [1;2;3;4;5];
b = [1;2;3;4;5];
data = [a b];
fileID = fopen('textfile.txt','w');
for i = 1:3
    fprintf(fileID,' %d %f %f\n',i, data');
end
fclose(fileID);