Change path.expand location (Win 7)
r
Solution
To persistently reset the directory that `"~"` resolves to for all users, put the following in the file `Renviron.site`, located in `$RHOME/etc/Renviron.site`:
R_USER="C:/Users/trinker"
(If the file is not already there, you can just create it yourself.)
If a computer supports multiple R users, and each wants to set their own `R_USER` location, each can put the following in their own `".Rprofile"` file:
Sys.setenv(R_USER = "C:/Users/trinker")
`".Rprofile"` is looked for in the user's home directory, which is returned by typing `Sys.getenv("HOME")`. See `?Startup` and the R for Windows FAQ for more details.
(Thanks to @Dason for pointing out the `.Rprofile` option.)
Problem
Currently: ``` path.expand("~") ``` Gives: ``` "C:\\Users\\trinker\\Documents" ``` I want it to yield: ``` "C:\\Users\\trinker" ``` The directory for the windows command prompt is `C:\Users\trinker`. This indicates that this is my windows home directory. `?path.expand` tells me to look at the rw-FAQ (LINK). This gives information above my cognitive ability. I decided to try to experiment as below: ``` > Sys.getenv("R_USER") [1] "C:\\Users\\trinker\\Documents" > normalizePath("~") [1] "C:\\Users\\trinker\\Documents" > Sys.getenv("R_USER") <- "C:\\Users\\trinker" Error in Sys.getenv("R_USER") <- "C:\\Users\\trinker" : target of assignment expands to non-language object > normalizePath("~") <- "C:\\Users\\trinker" Error in normalizePath("~") <- "C:\\Users\\trinker" : target of assignment expands to non-language object ``` I saw: ``` Sys.setenv(...) Sys.unsetenv(x) ``` But got scared I was messing with things I ought not be blindly messing with and decided to ask for guidance. So again I would like to have `~` mean `C:\\Users\\trinker\\` again (this was the default for my last PC) not the `C:\\Users\\trinker\\Documents` it is now.