On 29/05/2009 11:45 PM, Mark Kimpel wrote:
For years I have been using options(error = recover) either in .Rprofile or
from within R for debugging purposes. The functionality of this appears to
have changed and I can't recover it (no pun intended) using the ?options
help page. How can I get the old functionality back, particularly from
within .Rprofile? A specific line entry would be appreciated. An example,
the help page, and sessionInfo() follow. Thanks, Mark
I don't think there were any substantial changes in 2.9.0, so I would
guess that you have a local object named "recover" or "options", and it
is causing your problems. When I run options(error=recover) and your
two lines below, I get this output:
> options(error=recover)
> b.func <- function(x) {y <- x + 2; nonsense; y}
> b.func(3)
Error in b.func(3) : object 'nonsense' not found
Enter a frame number, or 0 to exit
1: b.func(3)
Selection: 0
>
which is what you wanted.
To put this into your .Rprofile, you need to use utils::recover (the
utils package hasn't been attached yet). That also works for me.
There have been changes to recover in R-devel,
Duncan Murdoch
b.func <- function(x) {y <- x + 2; nonsense; y}
b.func(3)
Error in b.func(3) : object 'nonsense' not found ## in the past this would
be a menu with numbers for what level I want to go to (in this case just 1)
This help page states:
'error': either a function or an expression governing the handling
of non-catastrophic errors such as those generated by 'stop'
as well as by signals and internally detected errors... The
functions 'dump.frames' and 'recover' provide alternatives
that allow post-mortem debugging. Note that these need to
specified as e.g. 'options=utils::recover' in startup files
such as '.Rprofile'.
sessionInfo()
R version 2.9.0 (2009-04-17)
x86_64-unknown-linux-gnu
locale:
LC_CTYPE=en_US.UTF-8;LC_NUMERIC=C;LC_TIME=en_US.UTF-8;LC_COLLATE=en_US.UTF-8;LC_MONETARY=C;LC_MESSAGES=en_US.UTF-8;LC_PAPER=en_US.UTF-8;LC_NAME=C;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_US.UTF-8;LC_IDENTIFICATION=C
attached base packages:
[1] stats graphics grDevices datasets utils methods base
------------------------------------------------------------
Mark W. Kimpel MD ** Neuroinformatics ** Dept. of Psychiatry
Indiana University School of Medicine
15032 Hunter Court, Westfield, IN 46074
(317) 490-5129 Work, & Mobile & VoiceMail
(317) 399-1219 Home
Skype: mkimpel
"The real problem is not whether machines think but whether men do." -- B.
F. Skinner
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