question: @ Override public Enumeration < Option > listOptions ( ) { Vector < Option > newVector = new Vector < Option > ( 4 ) ; newVector . addElement ( new Option ( "\tSpecify the number of instances to\n" + "\tsample when estimating attributes.\n" + "\tIf not specified, then all instances\n" + "\twill be used." , "M" , 1 , "-M <num instances>" ) ) ; newVector . addElement ( new Option ( "\tSeed for randomly sampling instances.\n" + "\t(Default = 1)" , "D" , 1 , "-D <seed>" ) ) ; newVector . addElement ( new Option ( "\tNumber of nearest neighbours (k) used\n" + "\tto estimate attribute relevances\n" + "\t(Default = 10)." , "K" , 1 , "-K <number of neighbours>" ) ) ; newVector . addElement ( new Option ( "\tWeight nearest neighbours by distance" , "W" , 0 , "-W" ) ) ; newVector . addElement ( new Option ( "\tSpecify sigma value (used in an exp\n" + "\tfunction to control how quickly\n" + "\tweights for more distant instances\n" + "\tdecrease. Use in conjunction with -W.\n" + "\tSensible value=1/5 to 1/10 of the\n" + "\tnumber of nearest neighbours.\n" + "\t(Default = 2)" , "A" , 1 , "-A <num>" ) ) ; return newVector . elements ( ) ; }
target:  Returns an enumeration describing the available options.