On 12/08/18 09:52, Göran Broström wrote: > Rolf, > > have you tried to run R with a debugger, as in > > $ R -d gdb > > the gnu debugger? No, I haven't. Did not know about the gnu debugger. I shall investigate. Thanks cheers, Rolf -- Technical Editor ANZJS Department of Statistics University of Auckland Phone: +64-9-373-7599 ext. 88276