[R] can't load rJava in R 2.8.1 on Windows XP

[Dieter Menne]

Duncan Murdoch <murdoch <at> stats.uwo.ca> writes:

> >> shell("set JAVA_HOME")
> >>     
> > JAVA_HOME=C:\Program Files\Java\jre6
> >   
> 
> That doesn't last beyond the shell call, as far as I know.  It starts a 
> process to run the shell, sets the environment variable in that process, 
> then the process dies and the setting dies with it.  If you want a 
> permanent setting, you should set it in the Rgui process, via Sys.setenv().

Trying again (after reading your private email): I tried to start 
libary(rJava) after each of the following line, and the result 
was always the same.

Dieter


shell("where jvm.dll")
#C:\Program Files\Java\jre6\bin\client\jvm.dll
Sys.getenv("JAVA_HOME")
#                       JAVA_HOME 
#"C:/Program Files/Java/jre6/bin" 
Sys.setenv(JAVA_HOME="C:/Program Files/Java/jre6")
Sys.setenv(JAVA_HOME="C:/Program Files/Java/jre6/bin")
Sys.setenv(JAVA_HOME="C:\\PROGRA~1\\Java\\jre6")
Sys.unsetenv("JAVA_HOME")