On Nov 27, 2009, at 9:39 PM, David Winsemius wrote:
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)
As follow-up, I loaded lme4 (just guessing that was the package that
was being used) and looked up merMCMC in R-search, finding that such
objects were created with mcmcsamp. (I also noted that the methods
available for such objects did NOT include plot, but they did include
xyplot. So I made the sample object that is in the help page, and
applied both plot and xyplot:
> xyplot(samp0) # plotted what I would expect from an MCMC object
> plot(samp0)
Error in as.double(y) :
cannot coerce type 'S4' to vector of type 'double'
> plot(x=samp0)
Error in as.double(y) :
cannot coerce type 'S4' to vector of type 'double'
So my (posterior) hypothesis is that you are using the wrong plot
function.
--
David.
--
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
______________________________________________
R-help@r-project.org 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.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
______________________________________________
R-help@r-project.org 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.
David Winsemius, MD
Heritage Laboratories
West Hartford, CT
______________________________________________
R-help@r-project.org 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.
