[R] JGR, Java and Kubuntu 7.04 ...

[Stefan Grosse]

You could download the latest R (2.5.0) directly from CRAN, this just as
a side remark, You find instructions here:
http://cran.au.r-project.org/bin/linux/ubuntu/README

With java you should make sure that you have the Java 5 JDK installed. 
I dont know how it is with Ubuntu but on fedora I have to set the java
alternative (sun java installation does not change the default java
there). Which java is installed you can check with java -version there
you see it it is properly installed and a R CMD javareconf also
indicates if your java is configured correctly. Additionally on Fedora I
had to set JAVA_HOME to the JDK directory manually.

Stefan

-------- Original Message  --------
Subject: [R] JGR, Java and Kubuntu 7.04 ...
From: John Logsdon <j.logsdon at quantex-research.com>
To: r-help at stat.math.ethz.ch
Date: 14.06.2007 19:16
> R-ists
>
> Yet again Java rears its ugly head.  
>
> I have Kubuntu 7.04 running the Kubuntu-repository version of R 2.4.1-1.      
> Yes it isn't the  very latest version but this is not the issue here.  
>
> I want a Windows-like environment and everyone is talking about JGR.
>
> I downloaded it and installed it along with rJava.  Both compile and install 
> satisfactorily.
>
> But when I come to run it:
>
>   
>>> library('JGR')
>>>       
>> Loading required package: rJava
>> Error in dyn.load(x, as.logical(local), as.logical(now)) :
>>         unable to load shared library
>> '/usr/local/lib/R/site-library/rJava/libs/rJava.so':
>> /usr/local/lib/R/site-library/rJava/libs/rJava.so: undefined symbol:
>> JNI_GetCreatedJavaVMs Error: .onLoad failed in 'loadNamespace' for 'rJava'
>> Error: package 'rJava' could not be loaded
>>     
>
>
> When I first tried to run it without Java being installed, I got a message 
> saying that JDK wasn't installed but mentioned 1.4.2.  The version of Java 
> actually installed as the latest from the Ubuntu repository is Sun 1.5.0.11.  
> I don't see the point in installing old versions of Java just for one 
> application because the language, or at least the writing, should be 
> backwards compatible.  
>
> In all aspects I have seen Kubuntu is a very impressive in checking 
> compatibility.  Unfortunately this is frequently not the case with Java.  I 
> steer clear of Java as much as possible.  
>
> Can anyone suggest what I should do?  Use Windows perhaps?  Run Windows in a 
> kvm virtual machine just to run R?  Put my head in a bucket of cold water?  
> Is there an alternative IDE?  Is there a later JGR somewhere that is not yet 
> on CRAN?
>
> TIA
>
>