[R] Question about version argument of require() and library()

[Prof Brian Ripley]

Did you install this package with --with-package-versions?  The `version'
argument picks up a particular versioned installed, not an ordinary
install of the right version.

We have rather little documentation on versioned installs.

On Tue, 19 Oct 2004, James W. MacDonald wrote:

> As far as I know, the following should work. Can anybody tell me 
> if/where I am going wrong?
> 
>  > packageDescription("KEGG", field="Version")
> [1] "1.6.4"
>  > require(KEGG, version="1.6.4")
> Loading required package: KEGG
> [1] FALSE
> Warning message:
> There is no package called 'KEGG', version 1.6.4 in: library(package, 
> character.only = TRUE, logical = TRUE, warn.conflicts = warn.conflicts,

-- 
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)
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