On Tue, 2004-09-07 at 12:47, Prof Brian Ripley wrote: > 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? > > > platform powerpc-apple-darwin6.8 > > arch powerpc > > os darwin6.8 > > system powerpc, darwin6.8 > > status > > (Both give NA under linux, so it looks like a version-specific issue). > > Linux on that hardware? It might be a chip issue.
I tried this in Linux on Mac iBook G4, and the results were the same: NaN+NA was NaN, just like in MacOS X version. So it looks like a "chip issue". However, the RPM built from the src.rpm packages at CRAN failed in some checks in Linux/iBook. cheers, jari oksanen -- Jari Oksanen <[EMAIL PROTECTED]> ______________________________________________ [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
