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

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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