On Tue, 7 Sep 2004, Robin Hankin wrote: > Check this out:
I am unable to reproduce it on any of the 7 different systems I checked (Solaris, Linux, Windows with various compilers). > > NaN +NA > [1] NaN > > NA + NaN > [1] NA > > I thought "+" was commutative by definition. What's going on? It is clearly not under your compiler/OS. We could add a configure test for broken systems and fix it in arithmetic.c but it hardly seems worthwhile. > > R.version > _ > platform powerpc-apple-darwin6.8 > arch powerpc > os darwin6.8 > system powerpc, darwin6.8 > status > major 1 > minor 9.0 > year 2004 > month 04 > day 12 > language R > > > > (Both give NA under linux, so it looks like a version-specific issue). Linux on that hardware? It might be a chip issue. -- Brian D. Ripley, [EMAIL PROTECTED] Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/ University of Oxford, Tel: +44 1865 272861 (self) 1 South Parks Road, +44 1865 272866 (PA) Oxford OX1 3TG, UK Fax: +44 1865 272595 ______________________________________________ [EMAIL PROTECTED] mailing list https://stat.ethz.ch/mailman/listinfo/r-help PLEASE do read the posting guide! http://www.R-project.org/posting-guide.html
