The object is a mcmc sample from lmer. I am using R v2.7.1. Please let me
know what additional information I can provide, hopefully I am just making a
simple mistake. Thanks in advance!
> data(ratdrink, package = 'faraway')
> rd.er <- lmer(wt ~ weeks*treat + (1 | subject), data = ratdrink)
> rd.mc <- mcmcsamp(rd.er, 10000)
> library(coda)
Loading required package: lattice
> summary(rd.mc)
Length Class Mode
1 merMCMC S4
> HPDinterval(rd.mc)
Error in UseMethod("HPDinterval") :
no applicable method for "HPDinterval"
> str(rd.mc)
Formal class 'merMCMC' [package "lme4"] with 9 slots
..@ Gp : int [1:2] 0 27
..@ ST : num [1, 1:10000] 1.179 0.878 0.864 0.760 0.614 ...
..@ call : language lmer(formula = wt ~ weeks * treat + (1 | subject),
data = ratdrink)
..@ deviance: num [1:10000] 964 964 966 966 969 ...
..@ dims : Named int [1:14] 1 135 6 27 1 1 1 2 5 1 ...
.. ..- attr(*, "names")= chr [1:14] "nf" "n" "p" "q" ...
..@ fixef : num [1:6, 1:10000] 52.880 26.480 4.780 -0.794 -9.370 ...
.. ..- attr(*, "dimnames")=List of 2
.. .. ..$ : chr [1:6] "(Intercept)" "weeks" "treatthiouracil"
"treatthyroxine" ...
.. .. ..$ : NULL
..@ nc : int 1
..@ ranef : num[1:27, 0 ]
..@ sigma : num [1, 1:10000] 7.16 6.68 6.60 7.14 7.96 ...
> search()
[1] ".GlobalEnv" "package:lme4" "package:Matrix"
"package:coda" "package:lattice" "package:datasets"
"package:grDevices"
[8] "package:graphics" "package:stats" "package:utils"
"package:methods" "Autoloads" "package:base"
>
Cheers,
Chad
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