[GRASS-stats] GRASS can't find R packages from personal library on Windows

[Roger Bivand]

On Thu, 17 Nov 2016, Helmut Kudrnovsky wrote:

> Helmut Kudrnovsky wrote
>> now tested by intalling some libraries into my personal library.
>> 
>> outside a winGRASS7.2.svn session
>> 
>>> .libPaths()
>> [1] "C:/Users/test/Documents/R/win-library/3.3"
>> [2] "C:/Program Files/R/R-3.3.1/library" 
>>> 
>> 
>> inside a winGRASS7.2.svn session
>> 
>>> .libPaths()
>> [1] "C:/Program Files/R/R-3.3.1/library"
>> 
>> there is a diffference between inside and outside a winGRASS7.2.svn
>> session
>
>
> now tested with standalone winGRASS7.0.5; same behaviour; inside a
> winGRASS-session the personal library seems not to be found.
>
> any idea?

My Windows 7, GRASS 7.0.4 shows identical .libPaths() values both inside 
and out with RGui. I don't know how the location of the personal library 
folder is recorded - is it in the registry? How might one know? It looks 
like:

Sys.getenv("R_LIBS_USER")

gives a template, so maybe it isn't in the registry? Some documentation 
here:

https://cran.r-project.org/bin/windows/base/rw-FAQ.html#I-don_0027t-have-permission-to-write-to-the-R_002d3_002e3_002e2_005clibrary-directory
https://cran.r-project.org/doc/manuals/r-release/R-admin.html#Windows-packages

Users can have one or more libraries, normally specified by the 
environment variable R_LIBS_USER. This has a default value (to see it, use 
‘Sys.getenv("R_LIBS_USER")’ within an R session), but that is only used if 
the corresponding directory actually exists (which by default it will not)

https://cran.r-project.org/doc/manuals/r-release/R-admin.html#Managing-libraries

Best wishes,

Roger

>
>
>
> -----
> best regards
> Helmut
> --
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-- 
Roger Bivand
Department of Economics, Norwegian School of Economics,
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