Chris Ramsborg <ramsborg <at> yahoo.com> writes:
> I am having a problem extracting from "mer" objects.
>
> I have constructed my problem using existing datasets.
>
> Using the following commands:
>
> require(lme4)
> fm1 <- lmer(Yield ~ 1 + (1 | Batch), Dyestuff)
> fixef(fm1)
>
> I get the following error message:
> "Error in UseMethod("fixef") : no applicable method for "fixef""
>
[FWIW, questions on nlme/lmer might better be directed
to [email protected]]
Do you have the nlme package loaded simultaneously
(you shouldn't) ?
I can get almost (but not quite) the same error message
by doing the following:
> require(lme4)
Loading required package: lme4
Loading required package: Matrix
Loading required package: lattice
> fm1 <- lmer(Yield ~ 1 + (1 | Batch), Dyestuff)
> fixef(fm1)
(Intercept)
1527.5
>
> library(nlme)
Attaching package: 'nlme'
The following object(s) are masked from package:lme4 :
BIC,
fixef,
lmList,
ranef,
VarCorr
> fixef(fm1)
Error in UseMethod("fixef") :
no applicable method for 'fixef' applied to an object of class "mer"
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