[R] dump.frames and global environment

[Henrik Singmann]

Dear Jannis,

is there any specific reason you use dump.frames instead of recover? As far as I see it, options(error = recover) would allow to access the global environment.

And as ?recover tells you: "The use of recover largely supersedes dump.frames as an error option, unless you really want to wait to look at the error. If recover is called in non-interactive mode, it behaves like dump.frames. For computations involving large amounts of data, recover has the advantage that it does not need to copy out all the environments in order to browse in them. If you do decide to quit interactive debugging, call dump.frames directly while browsing in any frame (see the examples)."

However, as I haven't used dump.frames ever, this is not really an answer to your question.

Hope it helps,
Henrik


Am 24.07.2012 16:10, schrieb Jannis:
> Dear list members,
>
>
> I am trying to use dump.frames to debug some code that i run non interactively. I use the following method:
>
>
>
>
> dump.frames.mod = function() {
>    dump.frames(dumpto = 'test', to.file = TRUE)
>    quit(save = 'no', status = 10)
> }
>
> options(error = dump.frames.mod)
>
>
> Is there any way to acess the content of the global environment from the *.rda file created in case of an error?
>
> When I run the following, for example, I would like to access the contents of a,b and c from the debugging file:
>
>
>
> dump.frames.mod = function() {
>    dump.frames(dumpto = 'test', to.file = TRUE)
>    quit(save = 'no', status = 10)
> }
>
> options(error = dump.frames.mod)
>
>
> #uncomment with care:
> #rm(list=ls())
> a = 2
> source('testscript.R', local = TRUE)
>
> load('test.rda')
> debugger(test)
>
>
> testscript.R in this testcase contains:
>
> b = 2
> c = 3
> plot(d)
>
>
> The only way I found is wrapping a function around the lines of code but this would mean changing a lot of code.
>
>
> Any Ideas?
>
>
> Cheers
> Jannis
>
>
>  > sessionInfo()
> R version 2.14.1 (2011-12-22)
> Platform: x86_64-unknown-linux-gnu (64-bit)
>

-- 
Dipl. Psych. Henrik Singmann
PhD Student
Albert-Ludwigs-Universität Freiburg, Germany
http://www.psychologie.uni-freiburg.de/Members/singmann