Re: [R] RWeka cross-validation and Weka_control Parametrization

2007-08-14 Thread Kurt Hornik
On Wed, 01 Aug 2007 10:52:02 +0200, Bjoern wrote: Hello, I have two questions concerning the RWeka package: 1.) First question: How can one perform a cross validation, -say 10fold- for a given data set and given model ? 2.) Second question

[R] RWeka cross-validation and Weka_control Parametrization

2007-08-01 Thread strinz
Hello, I have two questions concerning the RWeka package: 1.) First question: How can one perform a cross validation, -say 10fold- for a given data set and given model ? 2.) Second question What is the correct syntax for the parametrization of e.g.

Re: [R] RWeka control parameters classifiers interface

2007-07-12 Thread strinz
# still uses a linear kernel, but should be a x,y^2 kernel m4 # G is ignored, resulting in m2 Thx Bjoern - original Nachricht Betreff: Re: [R] RWeka control parameters classifiers interface Gesendet: Mi 11 Jul 2007 14:42:10 CEST Von: Achim Zeileis[EMAIL PROTECTED] On Wed, 11

[R] RWeka control parameters classifiers interface

2007-07-11 Thread strinz
Hello, I have some trouble in achieving the desired parametrisation for the weka classifier functions, using the package RWeka. The problem is, that the functions result=classifier(formula, data, subset, na.action, control = Weka_control(mycontrol)) do not seem to be manipulated by

Re: [R] RWeka control parameters classifiers interface

2007-07-11 Thread Achim Zeileis
On Wed, 11 Jul 2007 [EMAIL PROTECTED] wrote: The problem is, that the functions result=classifier(formula, data, subset, na.action, control = Weka_control(mycontrol)) do not seem to be manipulated by the mycontrol- arguments Yes, they are...not all parameter changes have always an

[R] RWeka

2006-03-05 Thread v . schlecht
Hi, I downloaded RWeka successfully. (At least I do not see, where I could have made a mistake.) Then I tried to load it by the library-command. To my surprise this did not work. Result: library(RWeka) Fehler in .jinit(c(system.file(jar, weka.jar, package = RWeka), system.file(jar, :

Re: [R] RWeka

2006-03-05 Thread Uwe Ligges
[EMAIL PROTECTED] wrote: Hi, I downloaded RWeka successfully. (At least I do not see, where I could have made a mistake.) Then I tried to load it by the library-command. To my surprise this did not work. Result: library(RWeka) Fehler in .jinit(c(system.file(jar, weka.jar, package =

[R] RWeka

2006-03-05 Thread Alexandre
Good afternoon for all listmates, As I saw in the manuals, I downloaded RWeka, rJava and grid successfully. When I tried to load rJava or Rweka I’ve got the same message: “Carregando pacotes exigidos: rJava Erro em firstlib(which.lib.loc, package) : JAVA_HOME is not set Erro: pacote

Re: [R] RWeka

2006-03-05 Thread Uwe Ligges
Alexandre wrote: Good afternoon for all listmates, As I saw in the manuals, I downloaded RWeka, rJava and grid successfully. When I tried to load rJava or Rweka I’ve got the same message: “Carregando pacotes exigidos: rJava Erro em firstlib(which.lib.loc, package) : JAVA_HOME