[R] Help needed for Loading "tm" package

[Prof Brian Ripley]

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]]
>>>
>>> ______________________________________________
>>> R-help at r-project.org mailing list
>>> https://stat.ethz.ch/mailman/listinfo/r-help
>>> PLEASE do read the posting guide
>>> http://www.R-project.org/posting-guide.html
>>> and provide commented, minimal, self-contained, reproducible code.
>>>
>>
>> --
>> 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