>If I recall correctly, some eigen vectors had their >direction flipped (negative values became positive and vice versa). >Did you notice anything of this kind when running 'make check' and >'make check recommended' ? It is important to us that numeric results >are reproducible between versions of R.
I think that any code that depends on the direction of an eigenvector should be considered broken. It is too bad that eigen's output does not have a class so that an all.equal method that know that the vector direction is not relevant could be written for it Bill Dunlap TIBCO Software wdunlap tibco.com On Mon, Apr 4, 2016 at 11:39 AM, Jeroen Ooms <jeroen.o...@stat.ucla.edu> wrote: > On Sun, Apr 3, 2016 at 6:44 PM, Ray Donnelly <rdonne...@continuum.io> > wrote: > > I've started to look into building R for Windows using MSYS2 as both the > > build environment and tools + libraries provider (where possible). > > Thanks for your reply, and for the patches. > > Last time I had a look at this (a few months ago) another problem was > that mingw-w64 v4 was giving different numeric output for some of the > tests in r-base. If I recall correctly, some eigen vectors had their > direction flipped (negative values became positive and vice versa). > Did you notice anything of this kind when running 'make check' and > 'make check recommended' ? It is important to us that numeric results > are reproducible between versions of R. > > ______________________________________________ > R-devel@r-project.org mailing list > https://stat.ethz.ch/mailman/listinfo/r-devel > [[alternative HTML version deleted]] ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
