question: public Enumeration < Option > listOptions ( ) { Vector < Option > newVector = new Vector < Option > ( 5 ) ; newVector . addElement ( new Option ( "\tNumber of bins for equal-width discretization\n" + "\t(default 10).\n" , "B" , 1 , "-B <int>" ) ) ; newVector . addElement ( new Option ( "\tWhether to delete empty bins after discretization\n" + "\t(default false).\n" , "E" , 0 , "-E" ) ) ; newVector . addElement ( new Option ( "\tWhether to minimize absolute error, rather than squared error.\n" + "\t(default false).\n" , "A" , 0 , "-A" ) ) ; newVector . addElement ( new Option ( "\tUse equal-frequency instead of equal-width discretization." , "F" , 0 , "-F" ) ) ; newVector . addElement ( new Option ( "\tWhat type of density estimator to use: 0=histogram/1=kernel/2=normal (default: 0)." , "K" , 1 , "-K" ) ) ; newVector . addAll ( Collections . list ( super . listOptions ( ) ) ) ; return newVector . elements ( ) ; }
target:  Returns an enumeration describing the available options.