I'm trying to run the J48 from DOS command prompt, with the default options of -C 0.25
-M 2. I use 2 seperate .arff files, one for training and one for testing. The command goes
something like (CLASSPATH has already been taken care of):
java weka.classifiers.j48.J48 -C 0.25 -M 2 -t full1.arff -T copyof~1.arf >result1.txt
I compared the output generated, and also the performance figures, with that generated by
the Knowledge Explorer (exactly the same options), and I find that the Explorer returns
much lower accuracy figures.
I was looking through the archives and I noticed some other people faced a similar problem
when using the Neural Network algo, but I couldn't find any explanation posted.
Can anyone help?
p.s. many thanks to Eibe for clarifying my doubts on the options available for J48 =)
i v a n
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