I am trying to work with the Date class which is written in S3 and I would
like to access to the elements of the class (for example the year). I've
tryed to do it for example like this:

as.Date(Sys.time)->w
w$year #Doesn't work
w["year"] #is NA

I would like to know the correct way to acces to this value.

Thank you so much

-- 
Elisenda Vila

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