how to create array datetime
이전 댓글 표시
i want datetime in this format :
01/02/2008 501 (day/month/years and time)
i try it :
bbb=datetime(bb,"InputFormat", "dd/MM/yyyy");
but i get error format
댓글 수: 1
Cris LaPierre
2024년 5월 13일
Based on your graphic, 01/02/2008 501 is actually (month/day/year time)
채택된 답변
load matlab_A
A
hh = floor(A(:,4)/100);
mm = mod(A(:,4),100);
ss = zeros(size(A,1),1);
B = [A(:,[1 2 3]) hh mm ss];
D = datetime(B,'Format','dd/MM/yyyy Hmm')
댓글 수: 6
shamal
2024년 5월 13일
Voss
2024년 5월 14일
You're welcome!
shamal
2024년 5월 20일
Voss
2024년 5월 20일
Not possible. datetime expects y,m,d or y,m,d,h,m,s, so if you want the h and the m you have to also give the s. Note that the Format doesn't show the seconds anyway.
shamal
2024년 5월 20일
Note that by supplying the units separately you could minimize the seconds to one single 0 and write less code:
A = load('matlab_A.mat').A
hh = fix(A(:,4)/100);
mm = mod(A(:,4),100);
D = datetime(A(:,1),A(:,2),A(:,3),hh,mm,0, 'Format','dd/MM/yyyy Hmm')
추가 답변 (2개)
You have the correct function, just the wrong syntax. The biggest issue I see with the conversion is that your time appears to be in millitary format, or HHmm.
I therefore think the simplest approach is to convert your array into a string arrary and then use the syntax t = datetime(DateStrings)
load matlab_A.mat
A
% Capture the time
D = datetime(num2str(A),'InputFormat',"yyyy M d Hmm",'Format',"dd/MM/yyyy Hmm")
thank for answer
The originally array is
it's a very large array
i try your solution but the PC no longer responded
i use ctr+c to break loop..
i try it:
tic
[A,~]=importdata(bubu);
toc
Elapsed time is 3.253890 seconds.
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