[Rd] How is the environment variable "R_USER" defined?
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 __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
[Rd] meaning of browser(skipCalls=)
Dear R Devel,
I have been advised to use "options(error=recover)" to enable
debugging on errors. But sometimes it would seem more convenient to
override "stopifnot", for example:
stopifnot = function(b) { if(!b) { browser(skipCalls=1); } }
However, this doesn't do what I expected. On looking closer I find
that the "skipCalls" argument seems to be ignored except when printing
the "Called from: " message; it does not affect the evaluation context
or the output of 'where':
> var=2; f=function(){var=1; browser(skipCalls=0)}; f()
Called from: f()
Browse[1]> var
[1] 1
Browse[1]> where
where 1: f()
Browse[1]> Q
> var=2; f=function(){var=1; browser(skipCalls=1)}; f()
Called from: top level
Browse[1]> var
[1] 1
Browse[1]> where
where 1: f()
Browse[1]> Q
> var=2; f=function(){var=1; browser(skipCalls=2)}; f()
Called from: top level
Browse[1]> var
[1] 1
Browse[1]> where
where 1: f()
Browse[1]> Q
So it appears that the "browser()" API does not actually make it
possible to call this built-in function from within another R function
and thereby emulate the same behavior as calling browser() directly.
If this is the case, it might be good to have it fixed or documented.
I am aware of "browser(expr=)", but this requires editing the
particular call that failed. The documentation for "browser()" led me
to hope that my use case would be supported, if only because it admits
that users might want to build other debugging functions with
browser(): "The 'skipCalls' argument should be used when the
'browser()' call is nested within another debugging function". An
example where this 'skipCalls' parameter is used to build a useful
debugging function would help to clarify its English description in
the manual.
Also, from the browser() command line I could not find a way to step
*out* of the current function. This would have been a way to recover
from skipCalls not working as expected. Am I missing something? For
example is there some command other than "n", where the below
interaction could pause before "hi" and "bye"?
> f=function(){browser(); message("in f"); message("out f")}; f(); message("hi");
message("bye")
Called from: f()
Browse[1]> n
debug at #1: message("in f")
Browse[2]> n
in f
debug at #1: message("out f")
Browse[2]> n
out f
hi
bye
If it is not possible for the R debugger to step out of a function, it
would be good to document that too, maybe after the list of browser
prompt commands in "?browser". Being confined within a single function
is not an obvious disability for a debugger to have.
I feel that R is an excellent tool, but sometimes I think that if the
shortcomings of the system were better documented, then this would
save users a lot of time in certain cases.
Thank you,
Frederick
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Re: [Rd] How is the environment variable "R_USER" defined?
On 22/11/2021 11:46 a.m., Jiefei Wang 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...
I think you want to look at the Windows FAQ. From question 2.14:
The home directory is set as follows: If environment variable R_USER is
set, its value is used. Otherwise if environment variable HOME is set,
its value is used. After those two user-controllable settings, R tries
to find system-defined home directories. It first tries to use the
Windows "personal" directory (typically C:\Users\username\Documents). If
that fails, if both environment variables HOMEDRIVE and HOMEPATH are set
(and they normally are), the value is ${HOMEDRIVE}${HOMEPATH}. If all of
these fail, the current working directory is used.
Duncan Murdoch
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Re: [Rd] How is the environment variable "R_USER" defined?
Just a quick thought. R for Windows FAQ 2.14 talks about the home directory: https://cran.r-project.org/bin/windows/base/rw-FAQ.html#What-are-HOME-and-working-directories_003f So maybe HOMEDRIVE and HOMEPATH are involved? Hope this helps. Sebastian Meyer Am 22.11.21 um 17:46 schrieb Jiefei Wang: 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 __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] How is the environment variable "R_USER" defined?
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 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 > > __ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > [[alternative HTML version deleted]] __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] How is the environment variable "R_USER" defined?
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. 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 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 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 >> >> __ >> R-devel@r-project.org mailing list >> https://stat.ethz.ch/mailman/listinfo/r-devel __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
Re: [Rd] How is the environment variable "R_USER" defined?
On 11/22/21 7:06 PM, 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. Instead, it talks about how we find the home directory from
"R_USER".
My understanding of the text is that R_USER is defined as (one of the)
environment variable(s) which one can set to override what R understands
to be the R "home directory"
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.
The "personal directory" is a Windows term. R obtains it via Windows API
call SHGetSpecialFolderLocation with CSIDL_PERSONAL (which is now My
Documents), this is why the wording in rw-FAQ:
"It first tries to use the Windows "personal" directory (typically
@file{C:\Users\username \Documents}).", which gives a typical value.
Best
Tomas
Best,
Jiefei
On Mon, Nov 22, 2021 at 12:32 PM Bill Dunlap 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 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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Re: [Rd] How is the environment variable "R_USER" defined?
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 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 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 __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel __ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
