question: @ Override public Enumeration < Option > listOptions ( ) { Vector < Option > newVector = new Vector < Option > ( 13 ) ; newVector . addElement ( new Option ( "\tUse unpruned tree." , "U" , 0 , "-U" ) ) ; newVector . addElement ( new Option ( "\tDo not collapse tree." , "O" , 0 , "-O" ) ) ; newVector . addElement ( new Option ( "\tSet confidence threshold for pruning.\n" + "\t(default 0.25)" , "C" , 1 , "-C <pruning confidence>" ) ) ; newVector . addElement ( new Option ( "\tSet minimum number of instances per leaf.\n" + "\t(default 2)" , "M" , 1 , "-M <minimum number of instances>" ) ) ; newVector . addElement ( new Option ( "\tUse reduced error pruning." , "R" , 0 , "-R" ) ) ; newVector . addElement ( new Option ( "\tSet number of folds for reduced error\n" + "\tpruning. One fold is used as pruning set.\n" + "\t(default 3)" , "N" , 1 , "-N <number of folds>" ) ) ; newVector . addElement ( new Option ( "\tUse binary splits only." , "B" , 0 , "-B" ) ) ; newVector . addElement ( new Option ( "\tDon't perform subtree raising." , "S" , 0 , "-S" ) ) ; newVector . addElement ( new Option ( "\tDo not clean up after the tree has been built." , "L" , 0 , "-L" ) ) ; newVector . addElement ( new Option ( "\tLaplace smoothing for predicted probabilities." , "A" , 0 , "-A" ) ) ; newVector . addElement ( new Option ( "\tDo not use MDL correction for info gain on numeric attributes." , "J" , 0 , "-J" ) ) ; newVector . addElement ( new Option ( "\tSeed for random data shuffling (default 1)." , "Q" , 1 , "-Q <seed>" ) ) ; newVector . addElement ( new Option ( "\tDo not make split point actual value." , "-doNotMakeSplitPointActualValue" , 0 , "-doNotMakeSplitPointActualValue" ) ) ; newVector . addAll ( Collections . list ( super . listOptions ( ) ) ) ; return newVector . elements ( ) ; }
target:  Returns an enumeration describing the available options. Valid options are: <p> -U <br> Use unpruned tree. <p> -C confidence <br> Set confidence threshold for pruning. (Default: 0.25) <p> -M number <br> Set minimum number of instances per leaf. (Default: 2) <p> -R <br> Use reduced error pruning. No subtree raising is performed. <p> -N number <br> Set number of folds for reduced error pruning. One fold is used as the pruning set. (Default: 3) <p> -B <br> Use binary splits for nominal attributes. <p> -S <br> Don't perform subtree raising. <p> -L <br> Do not clean up after the tree has been built. -A <br> If set, Laplace smoothing is used for predicted probabilites. <p> -Q <br> The seed for reduced-error pruning. <p>