Here is how I do it:
write("
model {
for (year in 1:N) {
D[year] ~ dpois(mu[year])
log(mu[year]) <- b[1] + step(year - changeyear) * b[2]
}
for (j in 1:2) { b[j] ~ dnorm(0.0, 1.0E-6) }
changeyear ~ dunif(1,N)
}
", "coalmining.jags")
which has the advantage that the model description is right there in
the .Rd file.
If you want a file to be part of the package, put it in e.g.
<pkg source>/inst/JAGSmodels/model.txt
and in the example use
system.file("JAGSmodels", "model.txt", package="whatever")
On Mon, 2 Aug 2010, Conor Lawless wrote:
Hello,
I can`t figure out how to include a text file for use in an example in the .Rd
help files of an R package I am writing.
I want the examples section of one help file to look like this:
\examples{
# Load the JAGS model
mod <- jags.model("model.txt")
}
The function jags.model tries to read in the file model.txt. So far every time
I run R CMD check, I get an error message:
Error in jags.model("model.txt"): Cannot open model file "model.txt"
It's not clear to me where in the package directory structure I can put this
file to make this example work. I've tried demo, inst, data and man.
Is it possible to do this? If not, how can I go about including a JAGS model
in an R package example?
Regards,
CONOR.
__
(oO)
/||\
Biogerontology
Institute for Ageing and Health
Newcastle University
Campus for Ageing and Vitality
Newcastle upon Tyne
NE4 5PL
UK
tel: +44 (0)191 248 1218
--
Brian D. Ripley, rip...@stats.ox.ac.uk
Professor of Applied Statistics, http://www.stats.ox.ac.uk/~ripley/
University of Oxford, Tel: +44 1865 272861 (self)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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