How to enter input variable from dialog box into text file?

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Muaaman 2014-10-27

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此问题的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/160183-how-to-enter-input-variable-from-dialog-box-into-text-file

评论： Muaaman 2014-11-11

if true
  % code
prompt={['What is your name?']};
title = 'Name Machine';
answer = inputdlg(prompt, title);
name = answer{1};
fileID = fopen('NameMachineFive.txt', 'w');
fprintf(fileID,['His name is %s.', name]);
fclose(fileID);

Ignore the top 2 lines and that was the original code. It was displaying "His name is " in the text document without the name. Then, dpb helped me out to fix it. Thanks dpb!

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dpb 2014-10-27

编辑：dpb 2014-10-27

Please don't edit away the question -- makes the whole thing useless for anybody else going forward. I suggest re-editing to put back the original as it was.

That you "Accepted" an answer indicates the issue was resolved.

Muaaman 2014-11-11

Agreed. My apologies.

I have edited the question again to show the original code (couldn't find out how to remove the if true % code part), the problem, and who helped me.

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Answer 1

dpb 2014-10-27

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此回答的直接链接

https://ww2.mathworks.cn/matlabcentral/answers/160183-how-to-enter-input-variable-from-dialog-box-into-text-file#answer_156681

编辑：dpb 2014-10-27

在 MATLAB Online 中打开

fprintf(fileID,['His name is %s.', name]);

should be

fprintf(fileID,'His name is %s.', name);

You've put the variable name in a character string with the format string and left no output variable to be printed.

ADDENDUM

Intended to note but forgot--in your script you used title as a variable for the dialog box heading. This aliases the TMW-supplied Matlab function title of the same name so if you want to plot something later and add a plot title you'll get an error.

Avoid using Matlab functions as variable names--admittedly, when still learning it's not always easy to know. That's why the color coding in the Matlab editor is useful amongst other things.