I think Udo Dieckmann wrote: > I'm trying to write what should be a simple little rule. I'm getting data > a database call, and am able to get that into Jess fine. I've got a > clp file that's accessing that data fine. But I now need to do something > (I'm sure trivial once I get the secret decoder ring) like the following: > > say I have the following data (facts): > > this-week-inventory 15 > last-week-inventory 16 > this-week-sales 23 > last-week-sales 19
So I'll assume the facts were created using something like (assert (this-week-inventory 15)) (assert (last-week-inventory 16)) etc. > > And I want a rule that says basically: > > IF this-week-inventory IS LESS THAN last-week-inventory > AND this-week-sales IS GREATER ATHAN last-week-sales > THEN > CALL estimate-sales-impact (defrule my-rule (last-week-inventory ?lwi) (this-week-inventory ?twi&:(< ?twi ?lwi)) (last-week-sales ?lws) (this-week-sales ?tws&:(> ?tws ?lws)) => (estimate-sales-impact)) --------------------------------------------------------- Ernest Friedman-Hill Science and Engineering PSEs 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 -------------------------------------------------------------------- To unsubscribe, send the words 'unsubscribe jess-users [EMAIL PROTECTED]' in the BODY of a message to [EMAIL PROTECTED], NOT to the list (use your own address!) List problems? Notify [EMAIL PROTECTED] --------------------------------------------------------------------
