[R] changes in the structure of mer objects?

[Doran, Harold]

help(package='lme4') will tell you 

> -----Original Message-----
> From: r-help-bounces at stat.math.ethz.ch 
> [mailto:r-help-bounces at stat.math.ethz.ch] On Behalf Of 
> joris.dewolf at cropdesign.com
> Sent: Monday, January 15, 2007 8:37 AM
> To: Martin Maechler
> Cc: Bates at wisc.edu; r-help at stat.math.ethz.ch; 
> r-help-bounces at stat.math.ethz.ch
> Subject: Re: [R] changes in the structure of mer objects?
> 
> Thanks Martin,
> 
> R --vanilla did the trick.
> By the way, is there a way to check which version of a lme4 
> or Matrix I am using in a certain instance of R?
> 
> We are running multiple versions of R on the same server 
> until we are sure all our operational code is behaving well 
> under a new version of R or of a package.
> Now I start doubting if we ever have been testing what we 
> were intendng to test...
> 
> Joris
> 
> 
> r-help-bounces at stat.math.ethz.ch wrote on 15/01/2007 14:00:12:
> 
> > Hi Joris,
> >
> > I suspect you somehow load an older version lme4 or Matrix than you 
> > think you are loading.
> > Or then you have an lmer() function or a class definition {from a 
> > saved workspace ????} in your work space.
> >
> > example(lmer) *must* run correctly for the 'lme4' package 
> to get onto 
> > CRAN at all, hence it must be unique to your setup.
> >
> > Maybe as a first step,
> > run R as "R --vanilla" ?
> >
> > Regards,
> > Martin Maechler, ETH Zurich
> >
> > >>>>> "joris" == joris dewolf <joris.dewolf at cropdesign.com>
> > >>>>>     on Sun, 14 Jan 2007 19:15:43 +0100 writes:
> >
> >     joris> Dear all,
> >
> >     joris> I try to run the example of lmer and get the following 
> > error message.
> >
> >     >> library(lme4)
> >     >> example(lmer)
> >     lmer> (fm1 <- lmer(Reaction ~ Days + (Days | Subject), 
> sleepstudy))
> >     joris> [[1]]
> >     joris> Error in get(x, envir, mode, inherits) : variable "as.
> > dpoMatrix" was not
> >     joris> found
> >
> >     joris> This error message is similar to what I get with
> >     joris> other models. It looks like the mer class has a
> >     joris> slightly different structure. Anybody an idea how to
> >     joris> solve this?
> >
> >
> >     joris> I am using R 2.4.1 under linux and the latest releases of
> > lme4 and Matrix
> >
> >     joris> lme4_0.9975-10
> >     joris> Matrix_0.9975-8
> >
> >     >> version
> >     joris> _
> >     joris> platform       x86_64-unknown-linux-gnu
> >     joris> arch           x86_64
> >     joris> os             linux-gnu
> >     joris> system         x86_64, linux-gnu
> >     joris> status
> >     joris> major          2
> >     joris> minor          4.1
> >     joris> year           2006
> >     joris> month          12
> >     joris> day            18
> >     joris> svn rev        40228
> >     joris> language       R
> >     joris> version.string R version 2.4.1 (2006-12-18)
> >
> > ______________________________________________
> > R-help at stat.math.ethz.ch 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.
> 
> ______________________________________________
> R-help at stat.math.ethz.ch mailing list
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> PLEASE do read the posting guide 
> http://www.R-project.org/posting-guide.html
> and provide commented, minimal, self-contained, reproducible code.
>