Re: [R] "unloading" data

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From: Prof Brian D Ripley (ripley@stats.ox.ac.uk)
Date: Sat 27 Oct 2001 - 19:16:27 EST 

Message-id: <Pine.GSO.4.31.0110271012200.9332-100000@auk.stats>

On Fri, 26 Oct 2001, Vadim Ogranovich wrote:

> Dear R-Users,
>
> I am reading the "An Introduction to R" manual and have come across data()
> function for loading data.
>
> I assume that R requires explicit loading of data objects to save memory.
> Then I'd expect there should be a function that can unload the objects once
> they are not needed anymore, what is this function? It would be helpful if
> ?data contained a reference to that function.

rm(). Applies to any object in memory.

It's pretty rare that a data object loaded by data() would be large enough
to be material in memory usage these days, but R was originally written for
ca 2Mb systems. If it were, one might do better to use attach/detach
(with a data file created with save). 

-- 
Brian D. Ripley,                  ripley@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 272860 (secr)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

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