How to test existing model with new instance in weka, using java code?

Question

I have a .model file of one of the classifier which I got through Weka GUI. Now I would like to test this model on some instance. Can anyone tell me how to do this ?

Answer 1

you shoud train your filter too if you want to predict new instances without rebuild /retrain your classifier / filter you shoud: 1) train both of them 2) save them with weka.core.SerializationHelper 3) reload them in your application and make prediction