Huihua Lu wrote:
Hi everyone,
I have a test set with more than 1000 cases, when I use
evaluate_Weka_classifier(RWeka)to evaluate my classifier on this test
set, the output shows me the result of only 83 cases. I do have
missing values in predictors, so I tried na.acton=na.pass, but it
dosen't help. Now I confused, why RWeka ignore so many cases in my
test set? Is there any setting I didn't notice in
evaluate_Weka_classifier(RWeka)? Anyone can help? Thanks in advance!
Well, without knowing Weka: You need a classification method that
supports NAs. Hence typically tree based methods that make use of
surrogate variables.
Best,
Uwe Ligges
lu
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