IBk classifier: k = 4


=== Error on training data ===

Correctly Classified Instances         435               86.8263 %
Incorrectly Classified Instances        66               13.1737 %
Mean absolute error                      0.1317
Root mean squared error                  0.363 
Relative absolute error                 37.6442 %
Root relative squared error             86.8429 %
Total Number of Instances              501     


=== Confusion Matrix ===

   a   b   <-- classified as
  53  60 |   a = >50K
   6 382 |   b = <=50K


=== Error on test data ===

Correctly Classified Instances         410               81.8363 %
Incorrectly Classified Instances        91               18.1637 %
Mean absolute error                      0.1816
Root mean squared error                  0.4262
Relative absolute error                 51.4222 %
Root relative squared error            101.0301 %
Total Number of Instances              501     


=== Confusion Matrix ===

   a   b   <-- classified as
  40  76 |   a = >50K
  15 370 |   b = <=50K