[R] R et Java

[Martin Morgan]

peut-+AOo-tre

http://www.omegahat.org/RSJava/FAQ.html:

Problem:
Trying the example for calling R from Java via

   SJava/scripts/RJava --example --gui-none

(in <RHOME>/library) throws an exception

Solution:
Reinstall SJava using the -c switch, i.e.

  R CMD INSTALL -c SJava_0.62-6.tar.gz

Regards,

Martin

miniar mansouri <miniarmansouri at yahoo.fr> writes:

> Bonjour,
>  
> Je developpe  une application java et je veux integrer du code R dans mon programme . Le programme de test que j+IBk-ai fait est :
>  
>  
> import org.omegahat.R.Java.*;
>  
>  public class REvalSample {
>     public static void main(String [] args) {
>         String [] rargs = {"--slave", "--vanilla"};
>  
>         System.out.println("Sample program to call R engine from Java");
> ROmegahatInterpreter interp = new ROmegahatInterpreter(ROmegahatInterpreter.fixArgs(rargs),false);
>  
>         REvaluator e = new REvaluator();
>  
>      Object val = e.eval("demo()");
>         val = e.eval("x * 2.0");
>  
>         if (val != null) {
>             double[] objects = (double[])val;
>             for (int i=0; i<objects.length; i+-+-) {
>                 System.err.println("("+-i+-") " +- objects[i]);}
>  
>  
>             }
>     }
>  }
>  
>  
> Lorsque je compile ce programme j+IBk-obtient les messages d+IBk-erreurs suivants :
>  
>  
> Loading RInterpreter library
> java.lang.UnsatisfiedLinkError: no RInterpreter in java.library.path
>             at java.lang.ClassLoader.loadLibrary(ClassLoader.java:1491)
>             at java.lang.Runtime.loadLibrary0(Runtime.java:788)
>             at java.lang.System.loadLibrary(System.java:834)
>             at org.omegahat.R.Java.ROmegahatInterpreter.<clinit>(ROmegahatInterpreter.java:34)
>             at rjava.REvalSample.main(REvalSample.java:11)
> Exception in thread "main".
> A mentionner , je travaille avec JBuilderX, et R.2.3.0 ,j+IBk-ai ajouter les packages SJava et rjava +AOA- R mais le probl+AOg-me est toujours pr+AOk-sent.
>  
> Aider moi s+IBk-il vous plait c+IBk-est tr+AOg-s urgent .
>  
>  
>  
>  
>  
> 	[[alternative HTML version deleted]]
>
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