On 9/28/07, Isabelle Hupont < ihupont@ita.es> wrote:

Hi Fernando!

Mi Instance class is the Weka class I attach....
Thanks for your attention.
Isabelle.
http://www.nabble.com/file/p12935480/Instance.class Instance.class

Fernando Meyer Camargo wrote:
>
> Could you please provide your Instance class ?
>
>
> On 9/27/07, Isabelle Hupont <ihupont@ita.es> wrote:
>>
>>
>> Hi!
>>
>> I want to program the following drl rule in xml:
>>
>> rule "average calculation"
>>         no-loop true
>>         when
>>                 _i : Instance()
>>                 _average : Double()
>>                                 from accumulate(accInst: Instance(),
>>                                                        average(
>> accInst.value ("tend")))
>>                 eval(_average < 20000)
>>         then
>>                 _i.setValue("tend",2000);
>> end
>>
>>
>> For it, I have implemented the following xml file:
>>
>> <?xml version="1.0" encoding="UTF-8"?>
>> <package name="org.prophet.fuzzy" xmlns="http://drools.org/drools-4.0 "
>>     xmlns:xs="http://www.w3.org/2001/XMLSchema-instance"
>> xs:schemaLocation=" http://drools.org/drools-4.0 drools-4.0.xsd">
>>     <import name="weka.core.*"/>
>>     <import name="org.prophet.gui.docking.*"/>
>>     <import name=" org.prophet.persistence.*"/>
>>     <import name="org.prophet.persistence.hibernate.*"/>
>>     <import name="org.prophet.rules.*"/>
>>     <import name=" org.prophet.*"/>
>>     <rule name="Rule1">
>>         <rule-attribute name="no-loop" value="true"/>
>>         <lhs>
>>             <pattern identifier="_i" object-type="Instance"/>
>>             <pattern identifier="_average" object-type="Double">
>>                 <from>
>>                     <accumulate>
>>                         <pattern identifier="accInst"
>> object-type="Instance"/>
>>                         <external-function evaluator="average"
>> expression="accInst.value("tend")"/>
>>                     </accumulate>
>>                 </from>
>>             </pattern>
>>             <eval>_average < 20000.0</eval>
>>         </lhs>
>>         <rhs>
>> _i.setValue("tend", 2000.0); manageRuleFired("Rule1", null, _i);
>> modify(_i);</rhs>
>>     </rule>
>> </package>
>>
>> And I have the following error when reading the rule package:
>>
>> org.drools.rule.InvalidRulePackage: Rule Compilation error _average
>> cannot
>> be resolved _i cannot be resolved _i cannot be resolved _i__Handle__
>> cannot
>> be resolved _i cannot be resolved
>>
>>
>> I also have tried to replace the xml identifier <pattern> by <column>
>> with
>> no result. Can you help me, please?
>>
>>
>> --
>> View this message in context:
>> http://www.nabble.com/accumulate-funtion-in-xml-tf4526879.html#a12916380
>> Sent from the drools - user mailing list archive at Nabble.com.
>>
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>>
>
>
>
> --
> Fernando Meyer http://fmeyer.org
> JBoss Rules Core Developer
> fmcamargo@gmail.com
>
> _______________________________________________
> rules-users mailing list
> rules-users@lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>

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