question: @ Override public Enumeration < Option > listOptions ( ) { Vector < Option > result = new Vector < Option > ( ) ; result . addElement ( new Option ( "\tUnsets the class index temporarily before the filter is\n" + "\tapplied to the data.\n" + "\t(default: no)" , "unset-class-temporarily" , 1 , "-unset-class-temporarily" ) ) ; result . addElement ( new Option ( "\tSpecifies list of columns to Discretize. First" + " and last are valid indexes.\n" + "\t(default: first-last)" , "R" , 1 , "-R <col1,col2-col4,...>" ) ) ; result . addElement ( new Option ( "\tInvert matching sense of column indexes." , "V" , 0 , "-V" ) ) ; result . addElement ( new Option ( "\tOutput binary attributes for discretized attributes." , "D" , 0 , "-D" ) ) ; return result . elements ( ) ; }
target:  Gets an enumeration describing the available options.