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javarmacosdeducer

R deducer error with .jcall

Recently I installed latest R (3.1) and RStudio (0.98) on Mac. While starting deducer() I get the following error.

> deducer()
Error in .jcall(.deducer, , "startNoJGR") :
   java.lang.ClassNotFoundException

I get the same error whether I start deducer from terminal or RStudio. On googling I didn't find much info either and any help is much appreciated.

r> R.version
               _                           
platform       x86_64-apple-darwin10.8.0   
arch           x86_64                      
os             darwin10.8.0                
system         x86_64, darwin10.8.0        
status                                     
major          3                           
minor          1.0                         
year           2014                        
month          04                          
day            10                          
svn rev        65387                       
language       R                           
version.string R version 3.1.0 (2014-04-10)
nickname       Spring Dance

r> library("Deducer")
r> deducer()
Error in .jcall(.deducer, , "startNoJGR") : 
  RcallMethod: cannot determine object class

terminal> java -version
java version "1.6.0_65"
Java(TM) SE Runtime Environment (build 1.6.0_65-b14-462-11M4609)
Java HotSpot(TM) 64-Bit Server VM (build 20.65-b04-462, mixed mode)
Solution

  • On Mac one can only kick-off deducer from JGR env and all goes well. See Ian's reply at https://groups.google.com/forum/#!topic/deducer/H7rqPFE9qY8