[R] R, Coda, and OpenBUGS
Frank E Harrell Jr
f.harrell at vanderbilt.edu
Wed Oct 7 14:48:50 CEST 2009
Have you tried the rjags package which uses the jags system? It is much
more integrated into R and works quite well. It uses the same modeling
language as BUGS. It is also better supported than OpenBUGS.
Bill Halteman wrote:
> Hi All,
> I am trying to figure out how to use R-Coda with the output from
> OpenBugs. I have installed and loaded the packages BRugs and R2WinBUGS.
> I have successfully run a simple Bayes model in WinBUGS using R2WinBUGS'
> "bugs" and have used "read.bugs" to build the coda object. I can
> successfully switch to OpenBugs and run the same model and get the basic
> summary back. However, I cannot build the coda object. From what I
> have read "read.openbugs" should do the trick. However, I have
> discovered the current version of OpenBUGS (v 3.03) doesn't write any
> output files in spite of setting codaPkg=TRUE in the "bugs" call.
> "Str(openbugs.object)" reveals a large collection of elements, one of
> which is an array that contains the MCMC chains. Is there a function to
> build the coda object?
> Thanks in advance for any suggestions,
> Bill Halteman
Frank E Harrell Jr Professor and Chair School of Medicine
Department of Biostatistics Vanderbilt University
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