How to read date and time of a file?

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Agustin 2017-7-4

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https://ww2.mathworks.cn/matlabcentral/answers/347398-how-to-read-date-and-time-of-a-file

评论： Jan 2017-7-5

Hi! I'm working to plot the displacement time series of a point but I need the time info of each file. The date and time is on the title of each file, like for example "2016.07.08-00.01.08-StaL-001910-Imera_1". The first numbers indicate the date and time when the data was taken. How can I read the date and time as vectors from the file name?

Thanks!

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Answer 1

Jan 2017-7-5

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https://ww2.mathworks.cn/matlabcentral/answers/347398-how-to-read-date-and-time-of-a-file#answer_272922

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How are the names available? Do you have them in a cell string already or do you want to grap them by dir?

If you have the string

C = '2016.07.08-00.01.08-StaL-001910-Imera_1'
D = sscanf(C, '%d.%d.%d-%d.%d.%d', 6)

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Agustin 2017-7-5

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This worked perfectly! I did the following and got the following result:

D = D'
D =
          2016           7           8           0           1           8
>> 
    t = datestr(D)
    t =
    08-Jul-2016 00:01:08

The result of t is what I was looking for but I want the date and time separate. For example, if I create a structure of the data, I want the date in one column and the time in another. How can I do that? Thank you so much for your help.

Jan 2017-7-5

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Perhaps:

Date = D(1:3);
Time = D(4:5);

What does "date in one column" exactly means? What is "a structure of the data"? Please post a small example.

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Answer 2

Agustin 2017-7-5

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I created a structure to have a list of the focusing parameters I need from the data and in those parameters, the filename is stored as a string. Thank you so much for your help! I will try this.