help files for libraries that aren't in the defaults library tree

"J" == J Andy Royle <jar at oriole.er.usgs.gov> writes:

    J> Hello, I created a library for a bunch of functions that I use
    J> frequently so that I dont have to carry duplicate copies around to
    J> wherever I fire up an R sesssion.  However, I have problems locating
    J> the help files for those functions.  Here are some details.


The online help [?.lib.loc  or ?library ..]
gives the solution:

  `.lib.loc' is a character vector with the
     locations of all library trees that R should use.  It
     is initialized at startup from the environment variable
     `RLIBS', which should be a colon-separated list of
     directories at which R library trees are rooted, and
     `.Library'.

Also, as a general Unix security note, you wouldn't need to be root to
write to the R library tree. A safer alternative is to make that directory
owned by a special user or group, so that selected people can be given the
power to install R libraries but not necessarily to destroy the entire
file system.

	-thomas


Thomas Lumley
Assistant Professor, Biostatistics
University of Washington, Seattle

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