Dear Prof. Ripley Many thanks. rtools 2.15 did the job.
One note if I may - In the rtools site one reads rtools215.exe - r>2.14.1 to R 2.15.x No rtoosl214.exe - r 2.13.x or R.2.14.x yes which can mislead the reader. 2.14.x could mean 2.14.2 and "no" could mean that rtools-2.15 is not read for prime time. Ed [[alternative HTML version deleted]] ______________________________________________ R-help@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide http://www.R-project.org/posting-guide.html and provide commented, minimal, self-contained, reproducible code.