How do I use fprintf to print to a text file?

Question

TheSaint 2024-2-3

0
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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2077721-how-do-i-use-fprintf-to-print-to-a-text-file

回答： Star Strider 2024-2-3

fprintf(' Force(N) \t Spring Constant (N/m) \t Potential Energy (J) \n')
fprintf(' %1.0f \t\t %2.0f \t\t\t\t\t %0.2f\n',  [F; SC; E])

I have a code that looks like this, and it prints to a chart that looks like this:

Force Spring Constant Potential Energy

25 200 1.40

35 450 1.10

20 100 1.44

15 300 0.80

How do I print this chart to a brand new file?

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Answer 1

Walter Roberson 2024-2-3

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https://ww2.mathworks.cn/matlabcentral/answers/2077721-how-do-i-use-fprintf-to-print-to-a-text-file#answer_1402106

在 MATLAB Online 中打开

filename = "AppropriateName.txt";
[fid, msg] = fopen(filename, "wt");
if fid < 0
    error('failed to open file "%s" because "%s"', filename, msg);
end
fprintf(fid, ' Force(N) \t Spring Constant (N/m) \t Potential Energy (J) \n');
fprintf(fid, ' %1.0f \t\t %2.0f \t\t\t\t\t %0.2f\n',  [F; SC; E]);
fclose(fid);

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Answer 2

Star Strider 2024-2-3

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/2077721-how-do-i-use-fprintf-to-print-to-a-text-file#answer_1402116

在 MATLAB Online 中打开

Use fopen to create a file identification number, change thefprintf statements accordingly, then use fclose to close it.

fid = fopen('YourFileNazme.txt','wt');
fprintf(fid, ' Force(N) \t Spring Constant (N/m) \t Potential Energy (J) \n')
fprintf(fid, ' %1.0f \t\t %2.0f \t\t\t\t\t %0.2f\n',  [F; SC; E])
fclose(fid);