conver catagorical to juliandate

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il147
il147 2022-10-18
评论： il147 2022-10-18
Hi, I just want to change catagorical data to julidandate
but I can not do that process right away
so i convert to categorical to double but answer is not i expected
what's mean 66? and how can i change juliandate
Thanks!
>> time1=table2array(time1);
>> time2=double(time1);

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采纳的回答

Stephen23
Stephen23 2022-10-18
Ran in:
C = categorical({'2021-08-22','2021-08-21','2021-08-23','2021-08-22'})
C = 1×4 categorical array
2021-08-22 2021-08-21 2021-08-23 2021-08-22
double(C) % get the category indices
ans = 1×4
2 1 3 2
S = string(C) % get the category values
S = 1×4 string array
"2021-08-22" "2021-08-21" "2021-08-23" "2021-08-22"
D = datetime(S);
J = juliandate(D)
J = 1×4
1.0e+06 * 2.4594 2.4594 2.4594 2.4594
  2 个评论
il147
il147 2022-10-18
thanks! but I don't know why 66 come out
il147
il147 2022-10-18
Oh, I did it!!!! really thank you
have a nice day!

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