Uwe Ligges <ligges <at> statistik.tu-dortmund.de> writes:
> On 29.01.2011 15:06, martanair wrote:
[snip]
> > I write:
> > radon.data<- list ("n", "J", "x", "y", "county")
> > radon.inits<- function (){
> > list (a=rnorm(J), b=rnorm(1), mu.a=rnorm(1),
> > sigma.y=runif(1), sigma.a=runif(1))
> > }
> > radon.parameters<- c ("a", "b", "mu.a", "sigma.y", "sigma.a")
[snip]
> > # with 500 iterations
> > radon.bugs.1<- bugs (radon.data, radon.inits, radon.parameters,
> > "radon.1.bug",
> > n.chains=3, n.iter=500)
>
> We still do not have radon1.bug.
>
> > plot (radon.bugs.1) # to get Figure 16.1
> > print (radon.bugs.1) # to display the results in the R console
> >
> > But after this
> > # with 10 iterations
> > radon.1<- bugs (radon.data, radon.inits, radon.parameters, "radon.1.bug",
> > n.chains=3, n.iter=10)
> >
> > R programe give me an error:
> > Errore in FUN(X[[1L]], ...) : oggetto "n" non trovato
As Uwe said, this seems very unlikely. If you can show us
a clean, reproducible example we may be able to help. There's
no obvious reason why the variable n should have existed at the
time of your first run (radon.bugs.1) and then disappeared in
the process of running plot(radon.bugs.1); print(radon.bugs.1).
I suspect you are working through material from Andrew Gelman's
book (since he has some radon examples)?
[Uwe: one reason to chop out previous code/data is that if
one posts via gmane, it complains if you don't have enough 'new
stuff'. Sigh.]
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