machine learning - WEKA 3.7.10 not compatible format, class index differ -
i use weka text classification, have train set , untagged test set, goal classify test set.
in weka 3.6.6 goes well, can select supplied test set , train model , result.
on same files, weka 3.7.10 says
train , test set not compatible. automatically wrap classifier in "inputmappedclassifier" before porceeding?
and when press no outputs following error message
problem evaluating classfier: train , test not compatible class index differ : 2!= 0
i understand key class index differ: 2!= 0.
however mean? why works in weka 3.6.6 , not compatible in weka 3.7.10? how can make test set compatible train set?
when import supplied test set, selecting same class attribute 1 use in train set? if don't change field, weka selects last attribute being class automatically.
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