Create month array?

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Julozert
Julozert 2020-6-1
编辑： Stephen23 2022-11-4
Hello,
Is it possible to create a datetime array with just entries from January to December?
I tried it like this but it did not work:
str = (1:12);
t = datetime(str(:),'InputFormat','mm');
I just want an array with 12 entries and each of them is a month with datatype "datetime"

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回答（2 个）

Stephen23
Stephen23 2021-7-14
Ran in:
D = datetime(2021,1,1):calmonths(1):datetime(2021,12,31)
D = 1×12 datetime array
01-Jan-2021 01-Feb-2021 01-Mar-2021 01-Apr-2021 01-May-2021 01-Jun-2021 01-Jul-2021 01-Aug-2021 01-Sep-2021 01-Oct-2021 01-Nov-2021 01-Dec-2021
D.Format = 'MMM'
D = 1×12 datetime array
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
  2 个评论
Ali AJDER
Ali AJDER 2022-11-4
Hello,
Is it possible to create this datetime array independent of the year (i.e. 2021 in this example)?
Thanks.
Stephen23
Stephen23 2022-11-4
编辑：Stephen23 2022-11-4
"Is it possible to create this datetime array independent of the year (i.e. 2021 in this example)?"
The DATETIME object has a YEAR property which always has some value assigned to it: if you do not assign a value to it, then the object construction will use some default value. Also due to the fact that years have different lengths (leap years, leap seconds) the exact time at the start of each month in a year can only be determined once the year has been specified. Because DATETIME objects encode exact times, the DATETIME object must specify the year.
What do you plan on doing with such an array?

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KSSV
KSSV 2021-7-14
year = 2020 ;
t = datetime(year,1,1):dateime(year,12,31) ;

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