On 11/05/2009 6:30 PM, Mark Na wrote:
Hi R-helpers,
I must use WinXP at work, and I'm missing a particular feature that's
available in R on my Mac at home...
In WinXP I would like to launch R by dragging and releasing a text
file on top of the R shortcut on my desktop. Then, I would like the
working directory to be automatically set to the location of that text
file.
That's what works in MacOS, but I can't figure out if it's possible in WinXP.
Any ideas? I'd appreciate it...
Thanks, Mark Na
PS What I do now is make a new R shortcut for each project, store that
shortcut in the directory containing that project's datafiles and R
programs (which are in text files), and set the "Start in" value to
that directory...but this has to be set up uniquely for each
project...
You can execute a script on startup as follows:
1. Put the script into a file somewhere, e.g. c:/temp/test.R
2. Edit your shortcut to R to set the command to something like this:
path\to\Rgui.exe R_PROFILE_USER=c:/temp/test.R --args
Now your script will execute on startup, and you can have it change
directory, load a file, whatever you want. For example, this changes
directory to the directory of the file dropped on the shortcut, then
opens the file for editing:
Contents of test.R:
filename <- commandArgs(TRUE)
if (length(filename)) {
setwd(dirname(filename))
utils::file.edit(filename)
}
You can make it as involved as you like, e.g. looking at the file
extension to determine what to do with it, etc.
Duncan Murdoch
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