How to change mat files in each iteration?

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armin m 2021-12-13

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编辑： Stephen23 2021-12-14

Hi. I am writing code which save output in mat file. I wanna it saves mat file that name changes to specific name with date and time of writing.tnx for e.g.:

...

Save doc3.mat matrix Convert to

Save doc3040620211407.mat matrix Which says this file has been creatwd in date 04/06/2021 in time of 14:07. Tnx

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Stephen23 2021-12-14

编辑：Stephen23 2021-12-14

Rather than using the completely ambiguous date format shown in your question, you should consider using an unambiguous ISO 860 date format:

https://en.wikipedia.org/wiki/ISO_8601

which has the the significant benefit that lexicographical order is also chronological order.

https://xkcd.com/1179/

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采纳的回答

Voss 2021-12-14

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https://ww2.mathworks.cn/matlabcentral/answers/1610290-how-to-change-mat-files-in-each-iteration#answer_854465

在 MATLAB Online 中打开

You can try this:

file_name = 'doc3.mat';
file_name = [file_name(1:end-4) datestr(now(),'mmddyyyyhhMM') file_name(end-3:end)];
% then save mat file with name file_name

It wasn't clear from your example whether 04/06 means April 6 or 4 June, this command assumes the month is first. To do day first, swap the 'mm' and 'dd'.