[R] mtrace() fails

[Norm Matloff]

Thanks to both of you for replying.  Actually, I first wrote Mark, but
he had a vacation mail message saying he'll be away until the 22nd, and
I wanted my students to be able to use this debugging tool before then.

R-2.5.0-patched did indeed solve the problem.  Thanks.

By the way, I have (yet another) R tutorial/reference page, at
http://heather.cs.ucdavis.edu/~matloff/r.html 

Norm Matloff
Dept. of Computer Science (formerly in the Dept. of Statistics)
University of California, Davis