[R] differents behaviour of packages depending on rJava under 32 and 64 bit versions of R 2.14.2

[Prof Brian Ripley]

On 17/04/2012 14:00, Olivier Eterradossi wrote:
> Hi listeRs,
>
>
>
> Maybe I have missed something, but I am facing a problem I don't understand
> even after reading archives and manuals (…maybe not carefully enough !) :

64-bit rJava needs 64-bit Java: 32-bit rJava needs 32-bit Java.  You can 
install both on the same machine, and there are different registries 
presented to 32- and 64-bit programs, so only the correct one will be 
seen (if they are installed correctly).

In any case, rJava has its own help forums, so it you need further help, 
ask there (and the maintainer does not read R-help routinely).

>
>
>
> On my PC (64-bit OS, Intel Xeon CPU , two L5506 at 2.13 GHz processors, 12 Go
> RAM) under Windows 7 SP1,
>
>
>
> I run both 32-bit (i386-pc-mingw32/i386) and 64-bit (x86_64-pc-mingw32/x64)
> version 2.14.2 (2012-02-29) of R, packages being updated daily.
>
>
>
> Loading package "lsa" gives no problem under the 32-bit version :
>
> ------------------------------
>
>> library(lsa)
>
> Le chargement a nécessité le package : Snowball
>
> Le chargement a nécessité le package : RWeka
>
>>
>
> ------------------------------
>
> But does not work under the 64-bit version :
>
> -------------------------------
>
>> library(lsa)
>
> Le chargement a nécessité le package : Snowball
>
> Error : .onLoad a échoué dans loadNamespace() pour 'Snowball', détails :
>
>    appel : NULL
>
>    erreur : .onLoad a échoué dans loadNamespace() pour 'rJava', détails :
>
>    appel : fun(libname, pkgname)
>
>    erreur : JAVA_HOME cannot be determined from the Registry
>
> Erreur : le package ‘Snowball’ ne peut être chargé
>
>>
>
> --------------------------------
>
>
>
> Because of the JAVA_HOME and Registry problem I suppose this is not strictly
> related to R but rather to the R<->  Java communication, but I can't figure
> what is happening, as it is working under the 32-bit configuration. Can
> someone here help ?
>
>
>
> Thanks by advance, all the best, Olivier
>
>
>
> --------------------------
>
> Olivier ETERRADOSSI
>
> Maître-Assistant, HDR
>
> Ecole des Mines d’Alès (CMGD, site de Pau)
>
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>
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>
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>
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>
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>
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-- 
Brian D. Ripley,                  ripley at 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