writetable or dlmwrite to save an array as a txt file

Question

Simon Lind 2024-2-21

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2085108-writetable-or-dlmwrite-to-save-an-array-as-a-txt-file

评论： Voss 2024-4-12

采纳的回答： Voss

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Hello community

I need to save a txt file like this one

-26.2  -31.7
-27.1  -33.9
-25.5  -30.2
-24.4  -30.8

starting from this array

0000  -26.2000  -31.7000
0000  -27.1000  -33.9000
0000  -25.5000  -30.2000
0000  -24.4000  -30.8000

writetable seems to have limitations. Is there any other way?

Thank you!

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Answer 1

Voss 2024-2-21

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https://ww2.mathworks.cn/matlabcentral/answers/2085108-writetable-or-dlmwrite-to-save-an-array-as-a-txt-file#answer_1413898

在 MATLAB Online 中打开

Here's one way:

M = [
    1.0000  -26.2000  -31.7000
    2.0000  -27.1000  -33.9000
    3.0000  -25.5000  -30.2000
    4.0000  -24.4000  -30.8000
    ];
filename = 'your_file.txt';
% write the file:
fid = fopen(filename,'w');
fprintf(fid,'%2d  %.1f  %.1f\n',M.');
fclose(fid);
% check the result:
type(filename)
 1  -26.2  -31.7
 2  -27.1  -33.9
 3  -25.5  -30.2
 4  -24.4  -30.8

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Answer 2

Walter Roberson 2024-2-21

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2085108-writetable-or-dlmwrite-to-save-an-array-as-a-txt-file#answer_1413908

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M = [
    1.0000  -26.2000  -31.7000
    2.0000  -27.1000  -33.9000
    3.0000  -25.5000  -30.2000
    4.0000  -24.4000  -30.8000
    ];
writematrix(M, 'your_file.txt', 'delimiter', ' ');
type your_file.txt
1 -26.2 -31.7
2 -27.1 -33.9
3 -25.5 -30.2
4 -24.4 -30.8