Re: [Bugs-r-devel] R2WinBUGS on Solaris

[Rodney S. <rsp...@mc...>]

Gorjanc Gregor wrote:
> ...
>   
>>>> 1. The working.directory is assumed to be the same directory as the
>>>> model.file and setting working.directory to something else doesn't help.
>>>>         
>>> Working directory and model.file can be in separate directories, you
>>> can you tell me an example where it does not work.
>>>
>>>       
>> Doesn't work.  See below:
>>
>>  > schools.sim <- bugs (data, inits, parameters,
>> "/usr/local/doc/r2winbugs/schools.bug",
>> +                     n.chains=3, n.iter=1000, working.directory=".")
>> Warning message:
>> In file.create(to[okay]) :
>>   cannot create file '/usr/local/doc/r2winbugs/schools.txt', reason
>> 'Permission denied'
>>     
>
> Rodney, this is a problem with permissions and not with R2WinBUGS! /usr/local/doc folders
> are usually not writable for regular users. If you want to avoid this problem, you can do either:
>
> A. Put modelfile somewhere else. If there will be many users (say a whole class), you do not want
> that they will be overwritting the same files, do you? Putting the modelfile to a home folder of each
> user, makes much more sense.
>
> B. You also might change the permissions of the  /usr/local/doc/r2winbugs/ folder. Actually, this is needed
> since the R2WinBUGS package changes some parameters related to burnin and metropolis acceptance rate in
> a file that resides in /usr/local/doc/r2winbugs/. I am not really aware what actually is done, since the code
> was written by Andrew Gelman and I just make it sure that some bits run under linux.
>
> So my recommendation is:
> - change permissions in /usr/local/doc/r2winbugs/ via chmod -R uga+w /usr/local/doc/r2winbugs/
>
> - make sure that each user is using its own modelfile
>
> Regards, Gregor
>   
Hi Gregor:

My current working directory is $HOME which is writeable.
R2WinBUGS is ignoring that and using the directory of the source file.
Attempting to over-ride this behavior with working-directory does not
workaround the problem. Please fix.

Thanks,

Rodney

-- 
Rodney Sparapani      Center for Patient Care & Outcomes Research (PCOR)
Sr. Biostatistician              Department of Medicine
Was 'Name That Tune' rigged?     Medical College of Wisconsin (MCW)
WWLD: What Would Lombardi Do     Milwaukee, WI, USA