[R] dataset.date, date of an object
Prof Brian Ripley
ripley at stats.ox.ac.uk
Wed May 5 14:12:09 CEST 2004
Let me repeat
> R does not store objects `permanently' as S-PLUS (sic) does, so your exact
> phrasing is meaningless.
In S-PLUS my.dataframe is an object in a .Data directory. There is no
such concept in R.
On Wed, 5 May 2004, Jason Watts wrote:
> Ok, I'd like the date an object was saved. Here's what I used to do in S-PLUS:
>
> > dataset.date('my.dataframe')
> [1] "Tue May 4 10:16:00 2004"
>
>
> Prof Brian Ripley <ripley at stats.ox.ac.uk> wrote:
> What do you mean by `a permanently stored version of a dataset'?
> If you mean a save()d version, use file.info() on the saved file.
>
> R does not store objects `permanently' as S-PLUS (sic) does, so your exact
> phrasing is meaningless.
>
> On Tue, 4 May 2004, Jason Watts wrote:
>
> > I'm looking for a function that returns the time at which a permanently
> > stored version of a dataset (object) was last modified, just like
> > dataset.date in S-Plus. Any suggestions?
>
>
--
Brian D. Ripley, ripley at stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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