-----Original Message-----
From: r-help-bounces at r-project.org [mailto:r-help-bounces at r-
project.org] On Behalf Of Berend Hasselman
Sent: Friday, November 02, 2012 3:36 PM
To: Markus Holotta
Cc: r-help at r-project.org
Subject: Re: [R] Strange behaviour of setwd/getwd
On 02-11-2012, at 21:02, Markus Holotta wrote:
Maybe my question was not clear enough:
default.wd is the working dir defined in the RStudio options.
In my script I want to change it temporarily to another directory by
setwd(choose.dir()) and set it back to the default.wd before calling
another script. But after choosing the new directory tmp.wd shows the
same path in the workspace as default.wd. Calling getwd() shows the
correct path.
No.
Read the help for setwd().
setwd returns the current directory before the change, invisibly and
with the same conventions as getwd. It will give an error if it does
not succeed (including if it is not implemented).
The essential bit is "before the change".
Berend
Am 02.11.2012, 19:14 Uhr, schrieb Duncan Murdoch
<murdoch.duncan at gmail.com>:
On 02/11/2012 12:57 PM, Markus Holotta wrote:
I've found the following strange behaviour R (RStudio) which has
confirmed by another user in RGui.
Inside a script I want to set two variables:
default.wd = getwd()
tmp.wd = setwd(choose.dir())
After choosing tmp.wd the value of default.wd is shown in
getwd() is giving back the correct string of tmp.wd.
Is there a workaround for the problem?
It's not clear what the problem is from your post. As the help page
says, both default.wd and tmp.wd should be the same after executing
those two lines. If you want to store both the old and new
directories, you should do it like this:
old.wd <- setwd(choose.dir())
new.wd <- getwd()
Duncan Murdoch