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 <[EMAIL PROTECTED]> 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
> [EMAIL PROTECTED]
>
> _______________________________________________
> rules-users mailing list
> rules-users@lists.jboss.org
> https://lists.jboss.org/mailman/listinfo/rules-users
>
>
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