[Bugs-r-devel] MacOS and wine and bugs.directory arguments (was: Recent changes)

[Gregor G. <gre...@bf...>]

Hi!

Sparapani, Rodney wrote:
>>> Sys.setenv(DISPLAY=":0.0")
>>> schools.sim <- bugs (data=data,
>> +                       inits=inits,
>> +                       parameters.to.save=parameters,
>> +                       model.file="schools.txt",
>> +                       n.chains=3,
>> +                       n.iter=1000,
>> +   bugs.directory="/Applications/WinBUGS14",
>> +   debug=FALSE)
>>
> Doesn't work:
> 
> sh: line 1: no: command not found
...
> Error in scan(file, what, nmax, sep, dec, quote, skip, nlines, na.strings,  :
>         scan() expected 'a real', got 'WinBUGS'

WINE and WINEPATH arguments can be NULL and findUnixBinary() in 
R/wineutils tries to find corresponding binaries. Can you copy the 
following (slightly modified findUnixBinary()) into your R. I would like 
to know which command has not been found on mac, is it either which or 
locate.

findUnixBinary <- function(x)
{
   ## --- Environmental variable ---
   cat("env\n")
   tmp <- Sys.getenv(toupper(x))
   if(nchar(tmp) != 0) return(tmp)
   ## else

   ## --- Standard place ---
   cat("/usr/bin\n")
   tmp <- paste("/usr/bin", x, sep="")
   if(file.exists(tmp)) return(tmp)
   ## else ...

   ## --- Which ---
   cat("which\n")
   tmp <- system(paste("which ", x, sep=""), intern=TRUE)
   if(length(tmp) != 0) return(tmp)
   ## else ..

   ## --- Locate ---
   cat("locate\n")
   tmp <- system(paste("locate ", x, " | grep bin/", x, "$", sep=""), 
intern=TRUE)
   tmp <- tmp[length(tmp)] ## keep only last hit
   if(length(tmp) > 0) return(tmp)

   stop(paste("couldn't find", x, "binary file"))
}

findUnixBinary(x="wine")
findUnixBinary(x="winepath")

> And you are correct.  /Applications is the standard place to install GUI applications
> such as R.  Command-line only applications can be installed anywhere.

How do you install WinBUGS on Mac? Do you choose /Aplications folder or ...

I just want to be sure that /Applications is a safe default as 
C:\Program Files is on MS Windows.

Additionally, how can we know if R is running on Mac? I guess that

.Platform$OS.type has value "unix" as for Linux/Unix.

-- 
Lep pozdrav / With regards,
     Gregor Gorjanc
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