question: @ Override public void resetDistribution ( Instances data ) throws Exception { Instances insts = new Instances ( data , data . numInstances ( ) ) ; for ( int i = 0 ; i < data . numInstances ( ) ; i ++ ) { if ( whichSubset ( data . instance ( i ) ) > - 1 ) { insts . add ( data . instance ( i ) ) ; } } Distribution newD = new Distribution ( insts , this ) ; newD . addInstWithUnknown ( data , m_attIndex ) ; m_distribution = newD ; }
target:  Sets distribution associated with model.