Displaying 3 results from an estimated 3 matches for "lweka".
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2009 Jun 04
1
About classifier in RWeka
...quot;weka/classifiers/Evaluation", instances, costMatrix) :
Failed to create object of class `weka/classifiers/Evaluation'
In addition: Warning message:
In .jnew("weka/classifiers/Evaluation", instances, costMatrix) :
NewObject
("weka/classifiers/Evaluation","(Lweka/core/Instances;Lweka/classifiers
/CostMatrix;)V",...) failed
I know there are something wrong in the function of
evaluate_Weka_classifier, but I am stuck. Any one can help me out?
Is it because the attributes of predictors? then, how can I set up
the parameters in evaluat_Weka_classifier...
2009 Dec 02
0
RWeka problem with WrapperSubsetEval
...data=X1X2X3X4W, control =Weka_control(
B=list("weka.classifiers.trees.j48.J48 -F 5 -T 0.01 -S 1 -- -C 0.25 -M
2")))
and in both cases I get the following error:
Error in .jcall(filter, "Z", "setInputFormat", instances) :
method setInputFormat with signature (Lweka/core/Instances;)Z not
found
Thanks in advance,
Itziar Frades
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2009 Jun 01
1
installing sn package
...nd
>
.jcall("weka/core/SerializationHelper",returnSig="V","write","nb.model",model$classifier)
Fehler in .jcall("weka/core/SerializationHelper", returnSig = "V",
"write", :
method write with signature
(Ljava/lang/String;Lweka/classifiers/bayes/NaiveBayes;)V not found
------------------------------
Message: 86
Date: Wed, 27 May 2009 19:26:44 +0200
From: Christian <ozric@web.de>
Subject: [R] RWeka weka.core.SerializationHelper.write
To: r-help@r-project.org
Message-ID: <4A1D77D4.6000109@web.de>
Content-Ty...