如何做一个逻辑或在CLIPS？

更新代码：在哪里添加支票?f<-(practice-is-on-off OFF)如何做一个逻辑或在CLIPS？

(defrule no-practice "Rules for when practice cannot be held" 

     (or ?f <- (practice (number-of-paddlers ?p&:(< ?p 6))) 
      ?f <- (practice (number-of-coaches ?c&:(< ?c 1)))) 

     => 
     (modify ?f (practice-is-on-off OFF))) 

    ;end

我定义在CLIPS模板，我使用逻辑运算符OR。然而，当我加载模板，它抛出一个错误说

[TMPLTDEF1] Invalid slot or not defined in corresponding deftemplate practice. 

ERROR: 
(defrule MAIN::no-practice "Rules for when practice cannot be held" 
    ?f <- (practice (or

这是我有：预先感谢任何见解。由于

(deftemplate practice "structure of a practice" 

    (slot number-of-paddlers (type NUMBER)) 
    (slot number-of-coaches (type NUMBER)) 
    (slot practice-is-on-off (type SYMBOL) (default ON)) 
    (slot practice-id (type NUMBER)) 

) 


(defrule no-practice "Rules for when practice cannot be held" 
    ?f <- (practice 
    (or 
      (number-of-paddlers 
       ?v_number-of-paddlers&:(
        < ?v_number-of-paddlers 6)) 

      (number-of-coaches 
       ?v_number-of-coaches&:(
        < ?v_number-of-coaches 1)) 

    ) 
    ) 

    => 
     (modify ?f (practice-is-on-off OFF) 
     ) 
)

来源

2013-04-25 engr007

错误是告诉你，你正在试图匹配命名槽“或”中的自定义模板中practice和槽不存在。这里是“无实践”规则的两个备选版本，将完成你正在尝试做的：

版本1：

(defrule no-practice "Rules for when practice cannot be held" 
    (or ?f <- (practice (practice-is-on-off ON) 
         (number-of-paddlers ?p&:(< ?p 6))) 
     ?f <- (practice (practice-is-on-off ON) 
         (number-of-coaches ?c&:(< ?c 6)))) 
    => 
    (modify ?f (practice-is-on-off OFF)))

请注意以上规则可以为practice，除非两次开火你也检查在CE中practice-is-on-off是“ON”。

版本2：

(defrule no-practice "Rules for when practice cannot be held" 
    ?f <- (practice (practice-is-on-off ON) 
        (number-of-paddlers ?p) (number-of-coaches ?c)) 
    (test (or (< ?p 6) (< ?c 6))) 
    => 
    (modify ?f (practice-is-on-off OFF)))

来源

2013-04-25 21:34:40 bogatron

谢谢@bogatron。我喜欢版本1.但是，当我这样做时，它导致规则进入无限循环。我试着把一个检查'？f < - （练习（练习是开关ON））'......但我迷失在它的语法中......你能结合使用AND和OR逻辑在CLIPS中的相同规则？非常感谢您的帮助！ – engr007 2013-04-26 02:14:39

除非你还检查CE上的练习开关是否为“开”.....什么是CE？我怎么能做到这一点...这就是我在上述问题中所提到的问题。我想我错过了你的笔记。再次感谢@ bogatron。 – engr007 2013-04-26 02:16:24

CE =“条件元素” - 它只是规则中“if”部分的前提之一。为了检查ON/OFF，你可能想修改你的'练习匹配语句就像'（练习（paddlers？p＆：（<？p 6））（练习开关ON）。我会修改我的答案，加上这个。 – bogatron 2013-04-26 02:44:15

如何做一个逻辑或在CLIPS？

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