;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
; This file is part of "NBC":  a naive bayes classifier written in LISP.
; Copyright, 2008, Tim Menzies tim@menzies.us
;
; NBC is free software: you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation, either version 3 of the License, or
; (at your option) any later version.
;
; NBC is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
; GNU General Public License for more details.
; You should have received a copy of the GNU General Public License
; a long with NBC.  If not, see <http://www.gnu.org/licenses/>.
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;


(defstruct 
    (relation (:print-function  ; this struct gets big. better hide its details
	       (lambda (x str d) 
		 (declare (ignore x d))
		 (format str "<relation>"))))

  name
  classes
  fields
)

(defstruct field
  name
  )

(defstruct (continuous (:include field)))
(defstruct (discrete   (:include field)) range)