Hello Ernest,
Thanks a lot.
Eunice Palmeira
2006/3/12, [EMAIL PROTECTED] <[EMAIL PROTECTED]>:
>
> I think Eunice Palmeira wrote:
>
> > (defquery search-result
> > (declare (variables ?X))
> > (Result (ClassRecognized ?c&:(eq ?c ?X)))
> > )
>
> Don't use function calls when you can use direct matching. It's more
> efficient and much easier to read:
>
> (defquery search-result
> (declare (variables ?X))
> (Result (ClassRecognized ?X)))
> )
>
> > I need modify some values of slots of the specified facts, i don't know
> to
> > get these values and the fact-id.
>
> You're thinking too procedurally! Don't use a query and then iterate
> over the results; just write a rule that matches the facts of
> interest and modify them on the RHS:
>
> (defrule modify-facts
> (modify-facts ?X)
> ?R <- (Result (ClassRecognized ?X))
> =>
> (modify ?R (whatever whatever)))
>
> Then instead of using your "query-facts" function, just assert
> "(modify-facts "Artificial")" and run the engine.
>
>
>
> ---------------------------------------------------------
> Ernest Friedman-Hill
> Advanced Software Research Phone: (925) 294-2154
> Sandia National Labs FAX: (925) 294-2234
> PO Box 969, MS 9012 [EMAIL PROTECTED]
> Livermore, CA 94550 http://herzberg.ca.sandia.gov
>
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