Help needed for Loading "tm" package

How do you account for the fact that the package passed its checks on the
build machine, e.g.

http://cran.r-project.org/bin/windows/contrib/2.8/check/RWeka-check.log

and no one else is reporting this?  (And it does work for me.)

Blaming your tools is easy, but doing so on a public forum is disrespectful
and against the rw-FAQ

http://cran.r-project.org/bin/windows/base/rw-FAQ.html#Can-I-install-packages-into-libraries-in-this-version_003f

(note the word 'unsupported').

Uwe Ligges does a great job helping Windows' users by building binary
packages, and deserves your thanks, not vague and unsubstantiated blame.

On Mon, 12 Jan 2009, Kum-Hoe Hwang wrote:

Thank Prof. Brian Ripley for your comments.

Based on Prof Brian Ripley's comments, I checked Java environments in
my PC. But I have not solved a "tm" package problem in Win R software.
I am not sure but my current conclusion is that the Win-based R binary
software has definitely a problem with Rweka package or subpackage.

Should I wait for another upgraded R binary version under the window
XP, "tm' package or Rweka ets?
Or I'd better migrate to non-window OS such as Linux, etc?

You definitely shou;d read and follow the FAQ, as this could well be a Java
incompatibility with the binary package.

Kum Hwang, Ph.D.

On Sat, Jan 10, 2009 at 8:06 PM, Prof Brian Ripley
<ripley at stats.ox.ac.uk> wrote:

On Sat, 10 Jan 2009, Kum-Hoe Hwang wrote:

Howdy Gurus again

Thanks to  Tony.Breyal, I was able to writing the following script for
analyzing a text document.
But I got an error with "tm' package. I don't why I got the error from
the
R
script below. I think I followed proccess of R tm manual.

Please do read the messages you got.  I see

Error in .jinit(system.file("jar", c("weka.jar", "RWeka.jar"), package =
pkgname,  :
 Cannot create Java virtual machine (-1)

so the problem is with your Java installation and RWeka, not 'tm'.

First make sure you have a working installation of RWeka -- I suspect you
do
not even have Java installed, but it could be a version or path issue
(but
very unlikely to be an R issue).

I use R v2.8.1. and tm_0.3-3.zip under Win XP.

Thanks in advance,

Kum Hwang

# setting directory
my.path <-'C:\\_work\\Daddy"s\\myProjects\\2009

defaultProject\\R\\textfile\\'

# text miner pakacge
library(tm)

Loading required package: Snowball
Loading required package: RWeka
---------------------------------------------------------
Error in .jinit(system.file("jar", c("weka.jar", "RWeka.jar"), package =
pkgname,  :
 Cannot create Java virtual machine (-1)
Error : .onLoad failed in 'loadNamespace' for 'RWeka'
Error: package 'RWeka' could not be loaded

my.corpurs <-Corpus(DirSource(my.path), readerControl =

list(reader=readPlain))
Error: could not find function "Corpus"

my.tdm <- TermDocMatrix(my.corpus)

Error: could not find function "TermDocMatrix"

my.tdm[1,]

Error: object "my.tdm" not found


--
Kum-Hoe Hwang, Ph.D.

Phone : 82-31-250-3516
Email : phdhwang at gmail.com

      [[alternative HTML version deleted]]

--
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595

--
Kum-Hoe Hwang, Ph.D.

Phone : 82-31-250-3516
Email : phdhwang at gmail.com

--
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
1 South Parks Road,                     +44 1865 272866 (PA)
Oxford OX1 3TG, UK                Fax:  +44 1865 272595