How to extract hour+minute from DateTime vector ?

15 vues (au cours des 30 derniers jours)
Doug Leaffer
Doug Leaffer le 8 Juin 2022
Commenté : Peter Perkins le 13 Juin 2022
Q: how do I best extract BOTH the hour + minute from a DateTime vector in MATLAB ? My DateTime format is: 15-Apr-2016 11:43:11
I need to fine-tune the rush hours to the exact time ranges below. My current code, below, works but does not include the 'minutes'. Please help.
t = datetime(data.DateTime);d = day(t,'dayofyear'); DayofYr = d;
tf = isweekend(t); % returns logical 1 = true = weekend, else 0
Wkend = tf;
h = hour(data.DateTime); % extract hour from Datetime vector
isAMRush = h>=7 & h<9 ==1; % needs to be revised to: 745a -845a morning rush
isPMRush = h>=15 & h<17 ==1; % needs to be revised to: 330p -430p afternoon rush
%
  2 commentaires
Stephen23
Stephen23 le 8 Juin 2022
D = datetime(2016,4,5,[8;11],43,11)
D = 2×1 datetime array
05-Apr-2016 08:43:11 05-Apr-2016 11:43:11
isAMRush = isbetween(timeofday(D),duration(7,45,0),duration(8,45,0))
isAMRush = 2×1 logical array
1 0
Doug Leaffer
Doug Leaffer le 8 Juin 2022
Iwill run this code suggestion. Thank you for the advice and the example output, which is helpful

Connectez-vous pour commenter.

Réponse acceptée

Stephen23
Stephen23 le 8 Juin 2022
D = datetime(2016,4,5,[8;11],43,11)
D = 2×1 datetime array
05-Apr-2016 08:43:11 05-Apr-2016 11:43:11
isAMRush = isbetween(timeofday(D),duration(7,45,0),duration(8,45,0))
isAMRush = 2×1 logical array
1 0
  1 commentaire
Peter Perkins
Peter Perkins le 13 Juin 2022
Right.
I mean the real answer is, "you hardly ever need to actually explicitly extract individual time components."

Connectez-vous pour commenter.

Plus de réponses (2)

Steven Lord
Steven Lord le 8 Juin 2022
d = datetime('15-Apr-2016 11:43:11')
d = datetime
15-Apr-2016 11:43:11
[h, m, s] = hms(d)
h = 11
m = 43
s = 11
or
tod = timeofday(d)
tod = duration
11:43:11

dpb
dpb le 8 Juin 2022
Convert to durations and use
isAMRush=iswithin(duration(hour(t),minute(t),0),duration(7,45,0),duration(8,45,0));

Catégories

En savoir plus sur Logical dans Help Center et File Exchange

Produits


Version

R2021b

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Translated by