Hi,
Does anyone know what the negative indexing of a matrix mean?
I am using the RWeka and this evaluate classifier does not work on new
data like this
e <- evaluate_Weka_classifier(m1235,newdata=XW4, complexity =
FALSE,class = FALSE)
while it work with negative indexing:
e <- evaluate_Weka_classifier(m1235,newdata=XW4[,-2], complexity =
FALSE,class = FALSE)
Although I do not understand what negative indexing of a matrix means,
or whether it produces any transformation.
Regards,
Itziar Frades
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