[R] Help needed: plotting with no device

Ben Bolker bolker at zoo.ufl.edu
Mon Sep 29 23:09:49 CEST 2003

  Can you use save.image() to rescue your results?
  I would try save.image(file="salvage.RData") and see if the file 
appears.  Otherwise I would say you're probably out of luck.


On Mon, 29 Sep 2003, Ross Boylan wrote:

> I have a hung session I would very much like to recover, since it has
> some simulation results I haven't saved (that took about 12 hours to
> create).  Yes, I know, I should have saved while I had the chance.
> I tried to do a hist() in an environment without a plotting device.
> My R session now seems to be hung; ^C doesn't do anything.  I thought
> it would timeout, but it has not so far.
> The details of this session's environment are a bit baroque.  In case
> it matters, here they are:
> Running an xterm locally, used the "screen" program to start a shell.
> Ran R.
> Then, from a remote computer, used ssh to log in (without X forwarding
> enabled).  Grabbed the session by doing screen -d -r.  (screen lets
> you trade the controlling tty of a session; that's why I was using
> it).
> After detaching and reattaching the session a couple of times (still
> remote) I did
> > hist(tres4$singles[["a"]])
> tres4$singles is a dataframe.
> I can still type on the terminal, but get no response.
> R 1.7.1 on Debian.
> Is there any way to get the R session back without killing it?
> Thanks.
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