Hi there, When I started R by double clicking on Rgui icon (I am on Windows), the tempdir() returned the tmpdir in the directory I set in .Renviron. If I started R by double clicking on a *.RData file, the tempdir() return the tmpdir in the directory setting by Windows system. I don't know whether it's designed. > sessionInfo() R version 4.0.2 (2020-06-22) Platform: x86_64-w64-mingw32/x64 (64-bit) Running under: Windows 10 x64 (build 18363) ... Best, Jinsong
It is too late to set TMPDIR in .Renviron. It is one of the
environment variables that has to be set prior to launching R. From
help("tempfile", package = "base"):
The environment variables TMPDIR, TMP and TEMP are checked in turn and
the first found which points to a writable directory is used: if none
succeeds ?/tmp? is used. The path should not contain spaces. **Note
that setting any of these environment variables in the R session has
no effect on tempdir(): the per-session temporary directory is created
before the interpreter is started.**
/Henrik
On Sat, Aug 29, 2020 at 6:40 AM Jinsong Zhao <jszhao at yeah.net>
wrote:>
> Hi there,
>
> When I started R by double clicking on Rgui icon (I am on Windows), the
> tempdir() returned the tmpdir in the directory I set in .Renviron. If I
> started R by double clicking on a *.RData file, the tempdir() return the
> tmpdir in the directory setting by Windows system. I don't know whether
> it's designed.
>
> > sessionInfo()
> R version 4.0.2 (2020-06-22)
> Platform: x86_64-w64-mingw32/x64 (64-bit)
> Running under: Windows 10 x64 (build 18363)
> ...
>
> Best,
> Jinsong
>
> ______________________________________________
> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see
> https://stat.ethz.ch/mailman/listinfo/r-help
> PLEASE do read the posting guide
http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
I read the help page, I don't understand it very well, since I set the environmental variable TMPDIR in .Renviron. What confused me is when double clicking the *.RData to launch R, the tempdir() does not respect the environmental variable TMPDIR, but launch R by double clicking Rgui icon does. Best, Jinsong On 2020/8/30 0:36, Henrik Bengtsson wrote:> It is too late to set TMPDIR in .Renviron. It is one of the > environment variables that has to be set prior to launching R. From > help("tempfile", package = "base"): > > The environment variables TMPDIR, TMP and TEMP are checked in turn and > the first found which points to a writable directory is used: if none > succeeds ?/tmp? is used. The path should not contain spaces. **Note > that setting any of these environment variables in the R session has > no effect on tempdir(): the per-session temporary directory is created > before the interpreter is started.** > > /Henrik > > On Sat, Aug 29, 2020 at 6:40 AM Jinsong Zhao <jszhao at yeah.net> wrote: >> >> Hi there, >> >> When I started R by double clicking on Rgui icon (I am on Windows), the >> tempdir() returned the tmpdir in the directory I set in .Renviron. If I >> started R by double clicking on a *.RData file, the tempdir() return the >> tmpdir in the directory setting by Windows system. I don't know whether >> it's designed. >> >> > sessionInfo() >> R version 4.0.2 (2020-06-22) >> Platform: x86_64-w64-mingw32/x64 (64-bit) >> Running under: Windows 10 x64 (build 18363) >> ... >> >> Best, >> Jinsong >> >> ______________________________________________ >> R-help at r-project.org mailing list -- To UNSUBSCRIBE and more, see >> https://stat.ethz.ch/mailman/listinfo/r-help >> PLEASE do read the posting guide http://www.R-project.org/posting-guide.html >> and provide commented, minimal, self-contained, reproducible code.