[R] Help trying to understand R documentation on libraries paths

[Iago Giné Vázquez]

Hi,

1 - On help(".libPaths", help_type = "text") one can read:

 First, '.Library.site' is initialized from 'R_LIBS_SITE'.

However, I have

> Sys.getenv("R_LIBS_SITE")
[1] "c:/Users/i.gine/AppData/Local/Programs/R/R-4.4.1/site-library"
> .Library.site
character(0)

Is this consistent?

2 - Next, on the same help document, one can read:

 Then, '.libPaths()' is called with the combination
     of the directories given by 'R_LIBS' and 'R_LIBS_USER'.


This time, I get
> Sys.getenv("R_LIBS")
[1] ""
> Sys.getenv("R_LIBS_USER")
[1] "c:/Users/i.gine/AppData/Local/Programs/R/R-4.4.0/library"
> .libPaths()
[1] "C:/Users/i.gine/AppData/Local/Programs/R/R-4.4.0/library" "C:/Users/i.gine/AppData/Local/Programs/R/R-4.4.1/library"


Later is written:

Function '.libPaths' always uses the values of '.Library' and
     '.Library.site' in the base namespace.

and indeed

> .Library
[1] "c:/Users/i.gine/AppData/Local/Programs/R/R-4.4.1/library"


Then, shouldn't be this specified above together with "directories given by 'R_LIBS' and 'R_LIBS_USER'"?


Am I understanding it wrongly? Otherwise, what do you think on the current way this help page is explained?

Thank you for your help and time.

Best regards,

Iago

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