MATLAB: How to use datenum with a date represented as a scaler

datenumscaler

I have data I need to ingest that is date specific however, the data is represented as a scaler e.g. 20180924 with no spaces or hyphens. How do I get datenum to take this date in and separate it out into a vector so I can use it?

Best Answer

Is your final goal to convert to a datenumber or an year-month-day array? As mentioned in the other answers, if you're using a recent version of Matlab, datetimes are more flexible than datenumbers. Once you've converted the value to a datetime, you can move between datenumbers and datevectors pretty easily:
x = [20180924];
>> t = datetime(num2str(x, '%08d'), 'inputFormat', 'yyyyMMdd')
t = 
    datetime
     24-Sep-2018
>> datenum(t)
ans =
        737327
>> datevec(t)
ans =
          2018           9          24           0           0           0
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