search interval in datetime
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hi, I have a datetime array of several many days. I need to serch interval
example:
TimeA=22:00
TimeB=03:00
search datetime>=timeA and datetime<=timeB (22:00 ..22:01..22:02. etc......23:59 ..00:00...00:01.etc... 2:58..2:59 3:00)
So I want without checking the day to have the indices of that range in the whole array
(the times in datetime are already ordered in a correct chronological way so the next time is always after the previous one)
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Accepted Answer
Steven Lord
on 21 May 2024
T = datetime('today') + hours(24*rand(10, 1))
TOD = timeofday(T)
Then compare to duration objects representing the ends of the interval of interest. In this case because the interval includes midnight we need to ask if the timeofday is greater than the first end or less than the second end.
past2200 = TOD > duration(22, 0, 0)
before0300 = TOD < duration(3, 0, 0)
T(past2200 | before0300)
results = table(T, past2200, before0300, past2200 | before0300, ...
'VariableNames', ["times", "> 2200", "< 0300", "overnight"])
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