how do I change numbers to dates?

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Liberty Crawford 2021-10-14

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https://ww2.mathworks.cn/matlabcentral/answers/1564096-how-do-i-change-numbers-to-dates

评论： Image Analyst 2021-10-14

So I'm pretty knew to matlab and I'm trying to take a column of data that is filled with numbers between 1-12 and change them into their respective months. Is that even posible and if so, how? Thank you! :)

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Answer 1

Image Analyst 2021-10-14

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https://ww2.mathworks.cn/matlabcentral/answers/1564096-how-do-i-change-numbers-to-dates#answer_808976

在 MATLAB Online 中打开

Use the datetime() function and the month() function:

monthNumberArray = 1:12;  % Vector of whatever months you want.
t = datetime(2021, monthNumberArray, 1)
t = 1×12 datetime array
   01-Jan-2021   01-Feb-2021   01-Mar-2021   01-Apr-2021   01-May-2021   01-Jun-2021   01-Jul-2021   01-Aug-2021   01-Sep-2021   01-Oct-2021   01-Nov-2021   01-Dec-2021
m = month(t, 'name')
m = 1×12 cell array
    {'January'}    {'February'}    {'March'}    {'April'}    {'May'}    {'June'}    {'July'}    {'August'}    {'September'}    {'October'}    {'November'}    {'December'}
monthNumberArray = randi([1 12], 1, 5);  % Vector of whatever months you want.
t = datetime(2021, monthNumberArray, 1)
t = 1×5 datetime array
   01-Jun-2021   01-Jan-2021   01-Mar-2021   01-Jul-2021   01-Feb-2021
m = month(t, 'name')
m = 1×5 cell array
    {'June'}    {'January'}    {'March'}    {'July'}    {'February'}