Keith Ponting
2009-Jan-14 11:25 UTC
[R] debugger dump.frames and argument "..." is missing, with no default
Hello all. I am not sure whether this belongs on this list or on R-devel? The only related messages I have been able to find were on R-devel. It may be related to http://www.nabble.com/changed-behaviour-of-%27get%27-in-2.8.0:-request-f or-unchange-td20143510.html as the above sequence works perfectly happily under R 2.7.0. I am trying to use the debugger (to resolve a bug when running with Rscript) and have a secondary problem when functions have ... arguments which can be reduced to the following sequence.> options(error=quote({dump.frames("debug.dump",to.file=TRUE)})) > silly <- function(x,...){+ z <- list(...) + NONEXISTENT.FUNCTION() + }> silly(1)Error in silly(1) : could not find function "NONEXISTENT.FUNCTION"> load("debug.dump.rda") > debugger(debug.dump)Message: Error in silly(1) : could not find function "NONEXISTENT.FUNCTION" Available environments had calls: 1: silly(1) Enter an environment number, or 0 to exit Selection: 1 Error in get(.obj, envir = dump[[.selection]]) : argument "..." is missing, with no default> sessionInfo()R version 2.8.1 (2008-12-22) i686-pc-linux-gnu locale: LC_CTYPE=en_GB.UTF-8;LC_NUMERIC=C;LC_TIME=en_GB.UTF-8;LC_COLLATE=en_GB.U TF-8;LC_MONETARY=C;LC_MESSAGES=en_GB.UTF-8;LC_PAPER=en_GB.UTF-8;LC_NAMEC;LC_ADDRESS=C;LC_TELEPHONE=C;LC_MEASUREMENT=en_GB.UTF-8;LC_IDENTIFICATI ON=C attached base packages: [1] stats graphics grDevices utils datasets methods base I get this debugging error whether I enter the code directly, source a .R file or invoke with Rscript, under SuSe linux 10.3 (as above) but also get it if I try under Windows Vista with R version 2.8.0 Patched (2008-10-21 r46766). (It all works perfectly happily without the "...") Any help gratefully received! Keith Ponting Aurix Ltd, Malvern WR14 3SZ UK