[R] my failing understanding ...

[David Winsemius]

I get a different result, undoubtedly because I have different  
packages loaded:

 > showMethods(plot)

Function "plot":
  <not a generic function>

 > sessionInfo()
R version 2.10.0 Patched (2009-10-29 r50258)
x86_64-apple-darwin9.8.0

locale:
[1] en_US.UTF-8/en_US.UTF-8/C/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] splines   stats     graphics  grDevices utils     datasets   
methods   base

other attached packages:
[1] plm_1.2-1        sandwich_2.2-1   zoo_1.5-8         
MASS_7.3-3       Formula_0.2-0
[6] kinship_1.1.0-23 lattice_0.17-26  nlme_3.1-96      survival_2.35-7

loaded via a namespace (and not attached):
[1] grid_2.10.0  tools_2.10.0

But I get a much longer and informative result with:

methods(plot)

-- 
David.

On Nov 27, 2009, at 4:23 PM, Kjetil Halvorsen wrote:

> The following I do not understand, but then I did'nt really use
> S4 methods ...
>
>> showMethods(plot)
> Function: plot (package graphics)
> x="ANY"
> x="lmList.confint"
> x="merMCMC"
>    (inherited from: x="ANY")
>
>> plot(x=moda0MCMC)
> Error in as.double(y) :
>  cannot coerce type 'S4' to vector of type 'double'
>> class(moda0MCMC)
> [1] "merMCMC"
> attr(,"package")
> [1] "lme4"
>
>
> Kjetil
>
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David Winsemius, MD
Heritage Laboratories
West Hartford, CT