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 <[EMAIL PROTECTED]>
>>>>> 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)
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