This is something you should report to the maintainer.
I tried to reproduce (never using that package myself), and got when trying the examples from ?mtrace:

library("debug")
mtrace(glm) # turns tracing on

Loading required package: parser
Loading required package: Rcpp
Error in numbered.id[n] <- attr(src.expr[[i]], "id") :
  replacement has length zero

Mark, I think we need an update for CRAN.


> sessionInfo()
R version 2.14.1 (2011-12-22)
Platform: i386-pc-mingw32/i386 (32-bit)

locale:
[1] LC_COLLATE=C                 LC_CTYPE=German_Germany.1252
[3] LC_MONETARY=C                LC_NUMERIC=C
[5] LC_TIME=C

attached base packages:
[1] tcltk     tools     stats     graphics  grDevices utils     datasets
[8] methods   base

other attached packages:
[1] parser_0.0-14    Rcpp_0.9.9       debug_1.2.40     mvbutils_2.5.101


Best,
Uwe Ligges





On 22.12.2011 17:59, Enio Jelihovschi wrote:
I use windows xp. When trying to use the function mtrace from package debug
the window that should open with the function to be debugged do not show
any text at all. It shows only a part of my desktop. Does anyone know why.
Is there any imcompatibility between windows xp and debug package.
Thanks in advance.

Enio Jelihovschi

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