[R] Getting JRI/rJava to work

[john seers (IFR)]

Hello All

I am trying to get the JRI examples from rJava to work on Windows XP and
failing. (And as a more general and connected question is there any
review/summary of front-end software for R?)

I have installed rJava from the Windows binary supplied. I compile and
run the example supplied (rtest.java) and get the results below. I do
not think the notes about a deprecated API are a problem. But I do not
know what causes the unsupported conversion messages.

Versions used etc below.

Any ideas please? Thanks for any help.

Regards


John Seers

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C:\temp\JRI\examples>javac -cp "C:/Program
Files/R/mylibrary/rJava/jri/JRI.jar" rtest.java
Note: rtest.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.

C:\temp\JRI\examples>java -Djava.library.path="C:/Program
Files/R/mylibrary/rJava/jri" -cp .;"C:/Program
Files/R/mylibrary/rJava/jri/JRI.jar" rtest
Creating Rengine (with arguments)
Error in structure(.Internal(Sys.getenv(as.character(x),
as.character(unset))),  :
  unsupported conversion

R version 2.7.0 (2008-04-22)
Copyright (C) 2008 The R Foundation for Statistical Computing
ISBN 3-900051-07-0

R is free software and comes with ABSOLUTELY NO WARRANTY.
You are welcome to redistribute it under certain conditions.
Type 'license()' or 'licence()' for distribution details.

  Natural language support but running in an English locale

R is a collaborative project with many contributors.
Type 'contributors()' for more information and
'citation()' on how to cite R or R packages in publications.

Type 'demo()' for some demos, 'help()' for on-line help, or
'help.start()' for an HTML browser interface to help.
Type 'q()' to quit R.

Error in file.info(lib.loc) : unsupported conversion in
'filenameToWchar'
Error in file.exists(name) : unsupported conversion in 'filenameToWchar'
rShowMessage "Fatal error: unable to restore saved data in .RData

"

C:\temp\JRI\examples>

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C:\temp\JRI\examples>which java
/cygdrive/c/Program Files/Java/jdk1.6.0_06/bin/java

C:\temp\JRI\examples>which javac
/cygdrive/c/Program Files/Java/jdk1.6.0_06/bin/javac

C:\temp\JRI\examples>

> sessionInfo()
R version 2.7.0 (2008-04-22) 
i386-pc-mingw32 

locale:
LC_COLLATE=English_United Kingdom.1252;LC_CTYPE=English_United
Kingdom.1252;LC_MONETARY=English_United
Kingdom.1252;LC_NUMERIC=C;LC_TIME=English_United Kingdom.1252

attached base packages:
[1] stats     graphics  grDevices datasets  utils     methods   base


other attached packages:
[1] rJava_0.5-1   RWinEdt_1.8-0
> 



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