Preventing loading of user packages

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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 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?

- -- 

JASP - A Fresh Way to Do Statistics
http://jasp-stats.org/

- --

How happy is he born and taught,
That serveth not another's will;
Whose armour is his honest thought,
And simple truth his utmost skill

This man is freed from servile bands
Of hope to rise, or fear to fall:
Lord of himself, though not of lands,
And, having nothing, yet hath all.

  -- Sir Henry Wotton





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