Hi, Prof. Bates,

I tried some simple codes from Prof. Ripley.

library(lme4)
y <- (1:20)*pi; x <- (1:20)^2;group <- gl(2,10)
M2. <- lmer (y ~ 1 + x + (1 + x | group))
M2 <- lmer (y ~ x + ( x | group))
identical(fixef(M2), fixef(M2.))

The results are still false sometimes under MAC R2.12.0.

Huang

On Wed, Oct 20, 2010 at 11:05 PM, Douglas Bates <bates@stat.wisc.edu> wrote:

> I think that is thanks to Martin Maechler and Simon Urbanek.  Martin
> contacted Simon off-list to work out some of the problems with that
> particular test.  I'm not sure of the details but it seems at least
> part of the problem was related to the use of veclib (accelerated BLAS
> on the Mac OS X platform), which is a little scary.
>
> On Wed, Oct 20, 2010 at 9:00 AM, Federico Calboli
> <f.calboli@imperial.ac.uk> wrote:
> > On 20 Oct 2010, at 14:52, Federico Calboli wrote:
> >>
> >> I also upgraded to 2.12.0 and the binary and the source are both listed
> as 0.999375-35 which seems to be the latest lme4 (*not* a or b) even on
> r-forge.
> >
> > [Obviously] I had no problems.
> >
> > F
> >
> >
> >
> > --
> > Federico C. F. Calboli
> > Department of Epidemiology and Biostatistics
> > Imperial College, St. Mary's Campus
> > Norfolk Place, London W2 1PG
> >
> > Tel +44 (0)20 75941602   Fax +44 (0)20 75943193
> >
> > f.calboli [.a.t] imperial.ac.uk
> > f.calboli [.a.t] gmail.com
> >
> > _______________________________________________
> > R-sig-mixed-models@r-project.org mailing list
> > https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models
> >
>
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