MAKE A PROCESSABLE FORM OF THE PARAMETERS

   aform *mk_aform_from_xxx_params(examples *exams,
                                   ivec *in_att_nums,
                                   ivec *out_att_nums,
                                   char *params)

An optional but recommended function for any
learner that uses parameters.  See the aform
documentation in xgui.doc . Once you have a
function to make an aform, you also have a
function to save the params to a file and to
display them to the user.