Hi Ben,

I think there is a typo in the installation code for lme4 from github:

install.packages("lme4", repos=c("http://lme4.r-forge.r-project.org/repos",
getOptions("repos")["CRAN"]))

Message from R:

install.packages("lme4", repos=c("http://lme4.r-forge.r-project.org/repos",
getOptions("repos")["CRAN"]))
Error in install.packages("lme4", repos = c("
http://lme4.r-forge.r-project.org/repos",  :
  could not find function "getOptions"

getOption not getOptions works.

Cheers,

Neil


On Tue, Jul 23, 2013 at 10:54 PM, Ben Bolker <bbolker@gmail.com> wrote:

> Tara Woud <t.y.woud@...> writes:
>
> >
> > Dear all,
> >
> > To determine the effect of weather parameters on the amount of core areas
> > of mallards (71 different mallards with measurements on several days),
> I'm
> > trying to fit the following model to my data:
> >
> > model1 <- lmer(Core_areas  ~ c_MaxTemp + I(c_MaxTemp^2) + c_MinTemp + I(
> > c_MinTemp^2) + c_GemTemp + I(c_GemTemp^2) + c_D.rain + c_S.rain +
> c_Gemwind +
> > c_Hwind + c_Lwind + (1 | Mallard)   # random slope | random factor (here
> > individual is random factor), family = poisson)
> >
> > But then I get the following warning message:
> >
> > In mer_finalize(ans) : false convergence (8)
> > What consequences does this have? And had anybody an idea how I can solve
> > this??
> >
> > Best,
> >
> > Tara
> >
>
>   [snip]
>
>   Are you willing to try out the development version of lme4
> (which will, hopefully, be released and become the CRAN version
> in about a week anyway)?  See the Installation section at
> https://github.com/lme4/lme4/blob/master/README.md  ...
>
>   The new version tends to have fewer problems with false convergence
> and more flexibility for exploring and fixing convergence problems
> if they do occur.
>
>   Ben Bolker
>
> _______________________________________________
> R-sig-mixed-models@r-project.org mailing list
> https://stat.ethz.ch/mailman/listinfo/r-sig-mixed-models
>

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