I'm currently using various classifiers in Weka.
My testing data is labelled, e.g.:
@relation bmwreponses
@attribute IncomeBracket {0,1,2,3,4,5,6,7}
@attribute FirstPurchase numeric
@attribute LastPurchase numeric
@attribute responded {1,0}
@data
4,200210,200601,0
5,200301,200601,1
6,200411,200601,0
5,199609,200603,0
6,200310,200512,1
...
The last value per row is the class element, i.e. responded.
But if I try unlabelled test data, e.g.:
@relation bmwreponses
@attribute IncomeBracket {0,1,2,3,4,5,6,7}
@attribute FirstPurchase numeric
@attribute LastPurchase numeric
@attribute responded {1,0}
@data
4,200210,200601,?
5,200301,200601,1
6,200411,200601,?
5,199609,200603,0
6,200310,200512,?
...
Weka will carry out the classification but ignore the unlabelled rows. So the test above will only include rows 1 and 3.
Does anyone know how to get around this? Should I have the class attribute declared in the test file or am I missing something?
Mr Morgan.
