question: @ Override public String toString ( ) { StringBuffer text = new StringBuffer ( ) ; Rule temp ; if ( m_ruleSet == null ) { return "Classifier hasn't been built yet!" ; } if ( m_generateRules ) { text . append ( "M5 " + ( ( m_useUnpruned == true ) ? "unpruned " : "pruned " ) + ( ( m_regressionTree == true ) ? "regression " : "model " ) + "rules " ) ; if ( ! m_unsmoothedPredictions ) { text . append ( "\n(using smoothed linear models) " ) ; } text . append ( ":\n" ) ; text . append ( "Number of Rules : " + m_ruleSet . size ( ) + "\n\n" ) ; for ( int j = 0 ; j < m_ruleSet . size ( ) ; j ++ ) { temp = m_ruleSet . get ( j ) ; text . append ( "Rule: " + ( j + 1 ) + "\n" ) ; text . append ( temp . toString ( ) ) ; } } else { temp = m_ruleSet . get ( 0 ) ; text . append ( temp . toString ( ) ) ; } return text . toString ( ) ; }
target:  Returns a description of the classifier