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read only time from date

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Fragkiskos Nikolakis
回答： Peter Perkins 2017-1-19
I have dates in format 'yyyy-mm-dd HH-MM-SS.FF'. I want to calculate something starting only when time is 12-00-00. How can i do that (reading only the time from the date)? Thanks

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回答（2 个）

Adam
Adam 2017-1-13
[Y,M,D,H,MN,S] = datevec(___)
seems like it would do this, more information in
doc datevec
Peter Perkins
Peter Perkins 2017-1-19
If you're using MATLAB R2014b or later, use datetime and timeofday:
>> t = datetime({'2017-01-19 11-35-12.34' '2017-01-19 12-25-23.45'},'Format','yyyy-MM-dd HH-mm-ss.SS')
t =
1×2 datetime array
2017-01-19 11-35-12.34 2017-01-19 12-25-23.45
>> timeofday(t) > hours(12)
ans =
1×2 logical array
0 1

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