o output in the
  results. This attribute should identify an
  instance in order to know which instances are
  in the test set of a cross validation. if 0
  no output (default 0).
 </pre>
 
 <pre>
 -P
  Add target and prediction columns to the result
  for each fold.
 </pre>
 
 <pre>
 Options specific to classifier weka.classifiers.rules.ZeroR:
 </pre>
 
 <pre>
 -D
  If set, classifier is run in debug mode and
  may output additional info to the console
 </pre>
 
 <!-- options-end -->
 
 All options after -