[R] dataset.date, date of an object

[Prof Brian Ripley]

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)
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