[R] Preventing loading of user packages

[Jonathon Love]

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hey,

i was able to solve the problem by explicitly putting

R_LIBS_USER=''

in the /etc/Renviron file (it isn't enough simply to comment the entry
out, because it has a default value that magically comes from
somewhere else)

cheers


On 25/08/2014 9:59 pm, David Winsemius wrote:
> 
> On Aug 25, 2014, at 7:11 AM, Ista Zahn wrote:
> 
>> On Mon, Aug 25, 2014 at 5:58 AM, Jonathon Love <jon at thon.cc>
>> wrote:
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>>> 
>>> Hi,
>>> 
>>> I'm trying to prevent the loading of packages from the
>>> 'personal library'
>> 
>> Of behalf of the users you are about to cripple, please, do not
>> do that!
> 
> Hello jonathon and Ista;
> 
> (I think this might be the first time I've seriously with Ista.)
> I've been in the situation where I had multiple copies of packages
> in 2 different libraries and wanted to do exactly what was
> requested. I'm assuming that the "main" library directory is
> something other than '~/Library/R/3.0/library' and permissions
> allow packages to be accessed and placed there. A quick method
> would simply be to execute this at the command line (or if it
> needed to be repeated in .Rprofile) :
> 
> .libPaths( .libPaths()[!which(.libPaths() ==
> '~/Library/R/3.0/library')] )
> 
> I suppose you could wrap some testing around this to prevent the
> removal of that path if it were the only one or if it were the path
> to the base and stats packages. Fo me this reports correctly that
> my base package is not there:
> 
>> grepl("~/Library/R/3.0/library" ,
>> attr(packageDescription('base'), "file") )
> [1] FALSE
> 
> But this raises the question. Why is this happening and why don't
> you just delete the directory?
> 


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