On 22/11/2021 1:06 p.m., Jiefei Wang wrote:
Thanks for all your help!! It actually has nothing to do with the
environment variables. The issue is caused by the backup feature in
Onedrive as Bill suggested. I do not know what magic trick Onedrive
uses here but it misadvices R to use its directory, not my local
Document directory. The answer might be from Windows FAQ question 2.14
like Duncan posted
After those two user-controllable settings, R tries to find
system-defined home directories. It first tries to use the Windows
"personal" directory
This is confusing. First, this FAQ is not about how "R_USER" is
defined.
R_USER is an optional environment variable that *you* can set. If you
do, it's taken to be the home directory. If it is not set, the rest of
the FAQ 2.14 entry is tried.
So if R is coming up with the wrong home directory, the solution is to
set R_USER to be the directory you want to use. You have to do this
before starting R, you can't use Sys.setenv(): it's too late by then.
The easiest way to set an environment variable for R to use is to set it
in the R_HOME/etc/Renviron.site file. You can alternatively set it in
the .Renviron file, but it may be a little mysterious in Windows where
you should save that.
You can also set environment variables using Windows control panel
settings, but I don't think I ever learned the details of this for
Windows 10. That can be global for all programs for one user, or global
for all users, depending on how you set it.
Duncan Murdoch
Instead, it talks about how we find the home directory from
"R_USER". Second, it still did not answer what is "the Windows
personal directory". I think this is where the issue is. My Document
still has the path "C:\Users\wangj\Documents", but there is a backup
path in "C:\Users\wangj\OneDrive\Documents". Unfortunately, R believes
the latter one is the "personal directory". I hope this can be
clarified a little bit to avoid confusion.
Best,
Jiefei
On Mon, Nov 22, 2021 at 12:32 PM Bill Dunlap <williamwdun...@gmail.com> wrote:
Is your C:\Users\yourname\Documents linked to OneDrive (either by your choice
or by some administrator setting a group policy)? If so, ou could unlink it
using OneDrive's settings dialog. Or you could set R_USER to avoid using
...\Documents.
-Bill
On Mon, Nov 22, 2021 at 8:47 AM Jiefei Wang <szwj...@gmail.com> wrote:
Hi, I have a new win system and try to install R as usual. Somehow,
the environment variable "R_LIBS_USER" is incorrectly pointed to a
Onedrive folder. Since "R_LIBS_USER" depends on "R_USER", the root
problem then becomes why "R_USER" is the path to the Onedrive. I did
an exhausting search in the R directory and the only related message I
can find is from EnvVar.html, which states
R_USER: The user's ‘home’ directory. Set by R. (HOME will be set to
the same value if not already set.)
I guess that's another way to say "no document is available yet". I
also took a look at my system environment variables but there are only
two variables related to Onedrive, they are
OneDrive=C:\Users\wangj\OneDrive
OneDriveConsumer=C:\Users\wangj\OneDrive
so everything looks pretty normal, I know I can correct this issue by
manually adding Renviron but I just wonder where this default behavior
comes from...
Best,
Jiefei
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