[R] Help needed for Loading "tm" package

[Prof Brian Ripley]

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]]
>
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>

-- 
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