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Julian day to date

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Daphne PARLIARI on 29 Aug 2020
Hello everyone.
I have a simple (hopefuly) question. In the attached excel file, column C contains year and column D the day of year (e.g. 01/01/2007 is day 1 and 31/12/2007 is day 365).
Is there a way to convert this date type into the format dd-mm-year, with each of the three numbers in separate columns (one for the day, one for the month and one for the year)?
Thank you in advance!

Answers (1)

the cyclist
the cyclist on 29 Aug 2020
Edited: the cyclist on 29 Aug 2020
Here is one way:
dateTable = readtable('KALAMARIA_2007.xlsx','Range','C:D');
julianDate = datetime(dateTable.YEAR,1,dateTable.JULIANDAY);
julianY = year(julianDate);
julianM = month(julianDate);
julianD = day(julianDate);
Of course, you don't really need to calculate the Julian year again, since it is already available as an input, but I made it for consistency.


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