If you run R under a debugger such as gdb you will get much more useful information. You haven't even told us your OS: for UNIX-alikes using
R -d gdb
is the most common way.
And
R -d ddd
(set the option "Run in separate execution window" before starting R)
offers a nice GUI for the debugger. Obviously, you need to have installed ddd: http://www.gnu.org/software/ddd/
Best regards Wolfgang
------------------------------------- Wolfgang Huber European Bioinformatics Institute European Molecular Biology Laboratory Cambridge CB10 1SD England Phone: +44 1223 494642 Fax: +44 1223 494486 Http: www.ebi.ac.uk/huber
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