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No InputFormat 'YYMMDD' found for datetime

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Sim
Sim am 2 Mai 2024
Bearbeitet: Stephen23 am 2 Mai 2024
Is there a way to transform '240331' into '31 March 2024' ?
The following does not work:
datetime('240331',InputFormat,'YYMMDD')
Unrecognized function or variable 'InputFormat'.
  2 Kommentare
Stephen23
Stephen23 am 2 Mai 2024
Bearbeitet: Stephen23 am 2 Mai 2024
"No InputFormat 'YYMMDD' found for datetime"
Character case matters!
"Is there a way to transform '240331' into '31 March 2024' ?"
datetime('240331', 'InputFormat','yyMMdd', 'Format','dd MMMM yyyy')
ans = datetime
31 March 2024
Sim
Sim am 2 Mai 2024
Thanks a lot @Stephen23!! :-)

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Steven Lord
Steven Lord am 2 Mai 2024
Either leave the quotes off but use == (if you're using a sufficiently recent release) or add quotes. You will need to adjust your format specifier, though.
datetime('240331',InputFormat = 'yyMMdd')
ans = datetime
31-Mar-2024
datetime('240331','InputFormat','yyMMdd')
ans = datetime
31-Mar-2024
You need to use 'yy' instead of 'YY' and 'dd' instead of 'DD'.
datetime('240331',InputFormat = 'YYMMDD')
Error using datetime (line 669)
The format 'YYMMDD' contains an unsupported symbol: 'Y'. See the datetime.Format property for a complete description of the identifiers used in datetime formats.
  3 Kommentare
Steven Lord
Steven Lord am 2 Mai 2024
Since the format needs to have ways to represent both the Month component and the minute component of a datetime, the most natural representation IMO is for M to be case sensitive. [This was not a choice MathWorks made; that's part of the Unicode Locale Data Markup Language specification linked from the documentation page I reference below. I believe the LDML uses the symbols from ISO standard 8601.]
The table in the entry for the Format property on the datetime documentation page lists the character and character sequences that have special meanings when used in a format specifier (either the InputFormat name-value argument to the constructor or the Format property which can be set in the constructor or after the object has been created.)
Sim
Sim am 2 Mai 2024
Wow, nice explanation, thanks! I will read about the document page :-)

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