Hi All,
I have been experimenting with modifying the Tax Advisor application in
"Jess In Action".
On pg. 169 Ernest makes the comment "...You should be thinking about putting
together a complete test harness now..".
I have been structuring my Jess scripting code in modules, placing them in
separa
I think Jason Morris wrote:
> I have been structuring my Jess scripting code in modules, placing them in
> separate files, and calling them from a master *.clp file like so..
>
> ;;=== pat.clp
> ;; Application batch script
> (clear)
> (watch all)
> (batch pat_main.clp)
> (batch p
I think Peder Jakobsen wrote:
>
> Now I'm stuck trying to figure out how to deal out two random cards. I'm
> not sure if I'm headed in the right direction. Any
> help would be greatly appreciated.
Well, you have to define what it means to deal out the cards. Do you
want to modify the facts tha
I think DE LA CRUZ German GESI wrote:
>
> Well, in my world I've a lot of domain object (Like Fowler's ideas) and on
> the other side there are business rules. Then, my idea is to build all the
> static/architectural view in Java and all the business/dynamic view in Jess.
> For persistence I use
Well, I don't know what to tell you. The whole problem description
seems to start from a premise that I don't understandq -- that
listFacts() will return more facts than have been asserted. This is
not true -- it will only return exactly the facts in working memory,
not any of the internal "copies"
Hi guys,
I would like to know if anyone here
have experience or knows if it is feasible to use JESS for scheduling
problems – Job Shop scheduling problems. I am working on a real life
problem of a 2-stage multi-parallel machines job shop scheduling. Preliminary analysis
of the problems
Hi,
I'm going through the first Tax Advisor example in the Jess in Action.
The first question that comes to mind is this: Many systems I can think of
would not ask the same list of questions again and again, but rather change
the list of remaining questions depending on the answer to former quest
Try a goal-driven approach. Group the rules into what you would ask if
you had this goal or that goal or another goal.
In your short example the goals might be
Determine Food Types (Tofu, meat, fish, veggies only)
Determine Tofu Types (meat simulations, non-meat simulations)
Determine Meat Types
I think Peder Jakobsen wrote:
>
> What is the basic strategy for aksing the right questions at the right time
> while gathering information from the user?
Note that the Tax Advisor already does this. Look, for example, at the
rule request-interest-income on page 175:
(defrule request-interest-
I have a user-defined function that processes a list of facts. How can I
recognize when one of the passed parameters is nil? For example:
(defrule find-names
(name (first ?first)(middle-initial ?mi)(last ?last))
=>
(load-name ?first ?mi ?last))
Where 'load-name' is a user-defined function imple
Actually, my example is not exactly accurate. The assertion is actually
setting the slot values to facts, rather than atoms (Strings). The
assertion is actually more like this:
(defrule find-name-facts
?firstname <- (word (type FIRSTNAME))
?middleInitial <- (word (type INITIAL))
?lastname <- (wo
Can anyone tell me why there is no printout even when a rule is activated?
Jess>(watch all)
Jess> (assert (Bob))
==> f-0 (MAIN::Bob)
Jess> (defrule a-bob "is there a bob?" (Bob) => (printout t "bob exists!"))
==> Activation: MAIN::a-bob : f-0
MAIN::a-bob: +1+1+1+t
TRUE
Jess>
I'm sure it's a s
Hi Peder,
the execution of rules is a 2-stage process: Your rule is now only
activated (i.e. ready to fire). However, it will not fire (i.e. execute
the printout in the RHS of our rule) until the rule engine actually
runs. Just add (run) to start the execution.
greetings from another newbie
D
Ok...I found it.
if(vv.get(2).type() == RU.FACT){...}
Sorry for the bandwidth consumption.
-Mitch
-Original Message-
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]
Behalf Of Mitch Chritensen
Sent: Tuesday, February 17, 2004 2:05 PM
To: [EMAIL PROTECTED]
Subject: RE: JESS: Passing nil
I think Mitch Chritensen wrote:
>
> If I do vv.get(2).factValue(c) Jess says 'Not a fact: "nil" (type = ATOM).'
> If I then try to do vv.get(2).atomValue(c), Jess says 'Message: Not a
> string: "" (type = FACT).'
Value arg2 = vv.get(2).resolveValue(context);
if (arg2.equals(Funcall.NIL) {
...
}
Hi All,
One of my Outlook rules my have zapped someone's reply, so please forgive me
for asking my question again - albeit a shorter version this time:
On pg. 169 of JIA, Ernest makes the comment "...You should be thinking about
putting together a complete test harness now..", so I have been stru
16 matches
Mail list logo
