Dear all,



I am trying to construct a wrapper that uses random forest to evaluate
the subsets using RWeka and when I do:



nombi <- make_Weka_filter("weka/attributeSelection/WrapperSubsetEval")

datbin<- nombi(gene ~., data=X1X2X3X4W,  control =Weka_control( B =
list("weka.classifiers.trees.RandomForest")))



I also have tried with an other induction algorithm:

datbin<- nombi(gene ~., 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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