Hi,
I'm still confused about how to find out what methods are defined for a
given class. For example, I know that
today - Sys.Date()
will produce an object of type Date. But I'm not sure what I can do with
Date objects or how I can find out.
?Date
refers me to the Date documentation page.
Hi Russ,
One tool that might help could be ?methods and ?showMethods
For example:
## for S3
methods(class = Date)
## for S4
showMethods(classes = Date)
regarding getting the actual year, I would use (though there may be
better ways):
format.Date(as.Date(2010-01-01), format = %Y)
HTH,
Josh
See ?months.
methods(class = Date)
would have got you there.
(Date is not an S4 class, so people should not be setting S4 methods
on it without very good reason, and there are none in R itself.)
On Thu, 28 Apr 2011, Joshua Wiley wrote:
Hi Russ,
One tool that might help could be ?methods
The function for getting the year from date is there in package
lubridate (as well as many other convenient functions to work with
dates).
More generally, finding all methods for a given class may be a
little tricky. If all means everything you have installed and
currently attached to your
Thanks, to all. I didn't know about either *methods( ) *or the package *
lubridate*, which seems like a very nice *Date *package.
*-- Russ *
On Fri, Apr 29, 2011 at 1:35 AM, Kenn Konstabel lebats...@gmail.com wrote:
The function for getting the year from date is there in package
lubridate
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