similar to: Trying to get RWeka/Snowball to work

Dear all, I have some troubles using the stemming algorithm provided by the tm (text mining) + Snowball packages. Here is my config: MacOS 10.5 R 2.12.0 / R 2.13.1 / R 2.14.1 (I have tried several versions) I have installed all the needed packages (tm, rJava, rWeka, Snowball) + dependencies. I have desactivated AWT (like written in

I too have this problem. Everything worked fine last year, but after updating R and packages I can no longer do word stemming. Unfortunately, I didn't save the old binaries, otherwise I would just revert back. Hoping someone finds a solution for R on Windows. Thanks! There is a potential solution for R on Mac OS from Kurt Hornik copied below, but I cannot get this to work on Windows.

Dear Forum, when I try to use SnowballStemmer() I get the following error message: "Could not initialize the GenericPropertiesCreator. This exception was produced: java.lang.NullPointerException" It seems to have something to do with either Snowball or RWeka, however I can't figure out, what to do myself. If you could spend 5 minutes of your valuable time, to help me or give me a

The Java error when attempting to use the stemmers in the Snowball or tm packages on Windows machines is caused by Quicktime. See prior posts in this thread. The workaround is to uninstall Quicktime. After much trial and error on machines spanning WinXP/2k/Vista/7, I finally verified this as follows: 1) Fresh installation of Windows/Java/R. Snowball package works perfectly. 2) Install Quicktime.

Hello, I want to use the SnowballStemmer on a collection of plain text documents. However, when I apply it to my corpus using the tm_map function it only stems the last word of each document (The problem is the for wordStem and stemDocument does not work at all).  An example: > path <- c("c:\path\to\directory")       # collection of plain text documents > corp <-

Hi R-helpers, i am using the following dataset.This dataset is stored in a mysql database. W(x) pH(y) 10 1 15 1 20 4 5 7.5 3 13 9 5 11.5 13.5 3 16 2 1 9.6 1 I am using RJDBC package to read the data from the database into a dataFrame.The commands used are, jdbcDriver<-JDBC(driverClass="com.mysql.jdbc.Driver",

I need help. I'm trying to connect with an Oracle DBMS and MySQL DBMS, I'm using RJDBC package. My code is the next: library('rJava') library('DBI') library('RJDBC') //Mysql drv <- JDBC("com.mysql.jdbc.Driver","C:\\Temporal\\mysql-connector-java-3.0.9-stable-bin.jar","'") conn <- dbConnect(drv,

Puppet 3.3.1 // CentOS release 6.4 (Final) rpm -qa | grep puppet puppetlabs-release-6-7.noarch puppet-3.1.1-1.el6.noarch puppetdb-1.3.0-1.el6.noarch puppet-server-3.1.1-1.el6.noarch puppetdb-terminus-1.3.0-1.el6.noarch Installed from yum packages: Running Transaction Installing : puppetdb-1.3.0-1.el6.noarch

Hi All, I have been trying to do some text analytics in R using tm package. I have installed and loaded the package, along with dependencies (slam, rWeka,rjava). When I try to run a tm_map command, it gives me "Error in .jnew(name) : java.lang.NoClassDefFoundError: weka/core/stemmers/SnowballStemmer" error. Can someone please throw some light on this?. Am I missing out on something?

I need help. I'm trying to connect with an Oracle DBMS and MySQL DBMS, I'm using RJDBC package. My code is the next: library('rJava') library('DBI') library('RJDBC') //Mysql drv <- JDBC("com.mysql.jdbc.Driver","C:\\Temporal\\mysql-connector-java-3.0.9-stable-bin.jar","'") conn <- dbConnect(drv,

I'm getting some log errors with clucene that I am having no luck tracking down on the interwebs. Errors: May 19 05:05:16 indexer-worker(gessel at blackrosetech.com)<62971><aPAEI3zLw17A/QAA0J78UA:EF25M3zLw1779QAA0J78UA>: Error: lucene index /mail/blackrosetech.com/gessel//lucene-indexes: IndexWriter::addDocument() failed (#4): language not available for stemming May 19 05:05:16

I tried using the "Snowball" package for performing stemming in text mining. But when I tried to load the package the following error is thrown: Error : .onLoad failed in loadNamespace() for 'Snowball', details: call: NULL error: .onLoad failed in loadNamespace() for 'rJava', details: call: hive[[hive$CurrentVersion]] error: attempt to select less than one

Hi! I am going to use non-snowball russian stemmer with Xapian. There is a good one at http://www.aot.ru. I've found that current implementation of Xapian::Stem does not allow it (there is no public interface for Xapian::Stem::Internal). Do you apply patches? Are there any recommendations for writing patches? Regards, Oleg Obolenskiy highpower at mail.ru

Hi, I am trying to create a pdf using ruby jasper. For this I am referring this url:- http://oldwiki.rubyonrails.org/rails/pages/howtointegratejasperreports I have done everything whatever is in that link. Still I am not able to get the pdf. I am not getting any error in log file. My log file is:- "Processing AccountController#customer_report (for 127.0.0.1 at 2009-04-27 13:19:34) [GET]

If I want to install RWeka I get an error: > library("RWeka") Error occurred during initialization of VM java.lang.OutOfMemoryError: unable to create new native thread Could you have any idea to help me? -- View this message in context: http://www.nabble.com/I-can%27t-install-RWeka-tp23542141p23542141.html Sent from the R help mailing list archive at Nabble.com.

Hi, I am using some classifiers in RWeka packages and met a couple problems. (1) J48 implements C45 classifier, the C45 should be able to handle missing values in both training set and test set. But I found the J48 classifier can not be evaluated on test set with missing values--it just ignore them. (2) The ensemble classifiers in RWeka such as bagging and boosting: there is a

Dear all, I am using the RWeka package to append several arff files. Although it works the resulting arff files always have "@relation R_data_frame", and I have to change this manually to my desired relation name. Can the package accomplish this for me instead? Thank you, Wil Koetsier

Hi, I am using some classifiers in RWeka packages and met a couple problems. (1) J48 implements C45 classifier, the C45 should be able to handle missing values in both training set and test set. But I found the J48 classifier can not be evaluated on test set with missing values--it just ignore them. (2) The ensemble classifiers in RWeka such as bagging and boosting: there is a

Hi, I'm trying to use RWeka and followed the following example from the RWeka manual. ============ ## Use some example data. w <- read.arff(system.file("arff","weather.nominal.arff", package = "RWeka")) ## Identify a decision tree. m <- J48(play~., data = w) m ## Use 10 fold cross-validation. e <- evaluate_Weka_classifier(m, cost = matrix(c(0,2,1,0),

Dear All,I encountered a problem when I use RWeka for prediction. Specifically, I use the following: res=J48(X1~.,data=mydata); predict(res), #it worked fine but when I tried to use a different data set, i.e. predict(res,newdata=mynewdata); all the predictions I get is 0, which apparently is problematic. What is weird is, if I use the old data, but use the newdata option, i.e.