question: protected String attributeValuesString ( Instance instance ) { StringBuffer text = new StringBuffer ( ) ; if ( m_Attributes != null ) { m_Attributes . setUpper ( instance . numAttributes ( ) - 1 ) ; boolean first = true ; for ( int i = 0 ; i < instance . numAttributes ( ) ; i ++ ) { if ( m_Attributes . isInRange ( i ) && i != instance . classIndex ( ) ) { if ( ! first ) { text . append ( m_Delimiter ) ; } text . append ( instance . toString ( i ) ) ; first = false ; } } } return text . toString ( ) ; }
target:  Builds a string listing the attribute values in a specified range of indices, separated by commas and enclosed in brackets.