On 09/19/2012 09:16 PM, Dirk Eddelbuettel wrote:

On 19 September 2012 at 20:38, John C Nash wrote:
| I have been having trouble with rjags on Ubuntu 10.04
                                            ^^^^^^^^^^^^

You may be on your own here. I would suggest updating to something current,
and remaining current -- at least that works for me. On Ubuntu 12.04 it
just works:

There is also a numbering issue at work here. Version 3.3-1 is supplied by Ubuntu, while my PPA has 3-5, a newer version from Martyn, but not for Ubuntu. For apt, 3.3 is > 3-5, so one solution is to use synaptic to force the install of the more recent version and see if that fixes the issue, although I would recommend upgrading Ubuntu as the first step.

Conveniently, Martyn release version 3-7 of the package Wednesday (9/18), so new versions will be hitting the PPA shortly, as soon as I resolve the numbering issue.

Michael

   R> library(rjags)
   Loading required package: coda
   Loading required package: lattice
   linking to JAGS 3.2.0
   module basemod loaded
   module bugs loaded
   R>

Using
   edd@max:~$ COLUMNS=76 dpkg -l | grep jags
   ii  jags           3.2.0-1precise Just Another Gibbs Sampler for Bayesian 
MCMC
   ii  r-cran-rjags   3.3-1          R interface to the JAGS Bayesian statistics
   edd@max:~$

| > library(rjags)
| Loading required package: coda
| Loading required package: lattice
| linking to JAGS 3.2.0
| module basemod loaded
| Error : .onLoad failed in loadNamespace() for 'rjags', details:
|   call: dyn.load(file)
|   error: unable to load shared object '/usr/lib/JAGS/modules-3/bugs.so':
|   /usr/lib/JAGS/modules-3/bugs.so: undefined symbol: fprec
| Error: package/namespace load failed for ‘rjags’
|
|
| > sessionInfo()
| R version 2.15.1 (2012-06-22)
| Platform: x86_64-pc-linux-gnu (64-bit)
|
| locale:
|  [1] LC_CTYPE=en_US.UTF-8       LC_NUMERIC=C
|  [3] LC_TIME=en_US.UTF-8        LC_COLLATE=en_US.UTF-8
|  [5] LC_MONETARY=en_US.UTF-8    LC_MESSAGES=en_US.UTF-8
|  [7] LC_PAPER=C                 LC_NAME=C
|  [9] LC_ADDRESS=C               LC_TELEPHONE=C
| [11] LC_MEASUREMENT=en_US.UTF-8 LC_IDENTIFICATION=C
|
| attached base packages:
| [1] stats     graphics  grDevices utils     datasets  methods   base
| >
|
| Also I have tried
|
| > dyn.load("/usr/lib/JAGS/modules-3/bugs.so")
| Error in dyn.load("/usr/lib/JAGS/modules-3/bugs.so") :
|   unable to load shared object '/usr/lib/JAGS/modules-3/bugs.so':
|   /usr/lib/JAGS/modules-3/bugs.so: undefined symbol: fprec
|
| After several uninstalls and reinstalls of jags and rjags, I did (as 
superuser)
|
| apt-get remove --purge r-base-core

Please.  R has not bearing here.

You have a package out of sorts. Worst, remove the package (here: jags, as
'dpkg -S /usr/lib/JAGS/modules-3/bugs.so' clearly tells you) and install
locally.

Dirk

| apt-get autoremove
|
| then reinstalled R, then rjags (the Michael Rutter PPA is in my sources 
list), i.e.,
|
| apt-get install r-base-dev
| apt-get install rjags
|
| (I used the dev to make sure I got some of the tools etc.)
|
| No joy.
|
| On crunchbang stattler linux (under VirtualBox), things loaded fine. I 
haven't tried
| actual computations though. (This is a debian squeeze variant.)
|
| Suggestions welcome, especially about the fprec symbol above. I am planning 
to upgrade the
| 10.04 to something else soon, probably Mint Mate, but wanted to wait a few 
more weeks to
| avoid doing this when having to travel.
|
| Cheers, JN
|
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--
Dr. Michael A. Rutter
School of Science
Penn State Erie, The Behrend College
4205 College Drive
Erie, PA 16563
http://math.bd.psu.edu/faculty/rutter
[email protected]

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