Re: [rules-users] Rule problem

I wonder if there's some way to introduce strictfp into the drl. (I'm not even sure if that would even solve the problem. But I figure it'd get you in the ballpark.) But I think it would be useful to be able to inject strictfp into the declarations of any generated drools classes. --- On Mon, 5/4/09, Femke De Backere <femmyke(a)gmail.com&gt; wrote: > From: Femke De Backere <femmyke(a)gmail.com&gt; > Subject: Re: [rules-users] Rule problem > To: "Rules Users List" <rules-users(a)lists.jboss.org&gt; > Date: Monday, May 4, 2009, 4:11 PM > I solved the problem by removing every double in the > sample.drl. How > van I fix the double problem if I really wanted to :)? In > this case it > is unnecassary but there must be a solution? > > Thanks for all the help! > > Femke > > Op 4-mei-09, om 21:48 heeft Wolfgang Laun het volgende > geschreven: > >> Don't use doubles. Try the same thing, scaling the > random weights >> with 10 (or 100) convert to int, and use suitably > scaled integer >> limits for your weight classes. >> >> I'm not at all sure, what various JVM versions > and/or Rand >> generators could produce. >> >> The javadoc for java.lang.Math is an indicator that > things might not >> be as simple as they ought to be. >> >> I could reproduce the problem this afternoon, but now > I can't any >> more, on the same machine, same JVM and same Drools > version. >> >> -W >> >> >> 2009/5/4 Femke De Backere <femmyke(a)gmail.com&gt; >> So, I did as you suggested, with the following as > result: >> BMI of 10 U heeft ondergewicht: 10 >> BMI of 30 U heeft ondergewicht: 30 >> BMI of 30 U heeft obesitas: 30 >> BMI of 20 U heeft ondergewicht: 20 >> >> So, I really don't get it, I used exactly the same > code as you. >> >> Femke >> >> Op 4-mei-09, om 17:11 heeft Greg Barton het volgende > geschreven: >> >>> >>> Well, approach this systematically, then: Create a > new Drools >>> project in Eclipse and replace the DroolsTest.java > and Sample.drl >>> with the ones I sent before. What results do you > get? If they are >>> correct, modify the project one step at a time > until the problem is >>> uncovered. >>> >>> One place to focus on: you're using rule > flows. I have no idea how >>> that could cause a false positive result like > you've seen, but you >>> never know. >>> >>> Finally, if you're comparing performance of > rules vs plain java, >>> plain java will easily win in this case. The rule > of thumb is >>> this: if you can easily write a plain non-rules > algorithm it will >>> outperform the rules solution. >>> >>> --- On Mon, 5/4/09, Femke De Backere > <femmyke(a)gmail.com&gt; wrote: >>> >>>> From: Femke De Backere > <femmyke(a)gmail.com&gt; >>>> Subject: Re: [rules-users] Rule problem >>>> To: "Rules Users List" > <rules-users(a)lists.jboss.org&gt; >>>> Date: Monday, May 4, 2009, 6:53 AM >>>> I'm using this: >>>> package bmi >>>> >>>> import bmi.DroolsTest.BMIClass; >>>> >>>> rule "Overgewicht" >>>> ruleflow-group "BMIrules" >>>> when >>>> bmiClass : BMIClass($bmi: bmi >= 25, bmi > < 30) >>>> then >>>> System.out.println("U heeft > overgewicht: " + >>>> $bmi); >>>> end >>>> >>>> rule "Obesitas" >>>> ruleflow-group "BMIrules" >>>> when >>>> bmiClass : BMIClass($bmi : bmi >= 30) >>>> then >>>> System.out.println("U heeft obesitas: > " + >>>> $bmi); >>>> end >>>> >>>> >>>> rule "Ondergewicht" >>>> ruleflow-group "BMIrules" >>>> when >>>> bmiClass : BMIClass($bmi : bmi < 18.5) >>>> then >>>> System.out.println("U heeft > ondergewicht: " + >>>> $bmi); >>>> end >>>> >>>> >>>> rule "Normaal" >>>> ruleflow-group "BMIrules" >>>> when >>>> bmiClass : BMIClass($bmi : bmi >= 18.5, > bmi < 25) >>>> then >>>> System.out.println("U heeft een normaal > gewicht: >>>> " + $bmi); >>>> end >>>> >>>> But in essence it is the same as Greg's. I > get outputs >>>> as: >>>> >>>> U heeft ondergewicht: 25.0 >>>> U heeft overgewicht: 25.0 >>>> >>>> But I really don't see the problem. >>>> >>>> Femke >>>> >>>> Op 4-mei-09, om 13:25 heeft Wolfgang Laun het > volgende >>>> geschreven: >>>> >>>>> I cannot reproduce your findings. >>>>> Which bmi values cause the firing of two > rules? >>>>> Are you using exactly the same .drl file > Greg sent? >>>>> -W >>>>> >>>>> 2009/5/4 Femke De Backere > <femmyke(a)gmail.com&gt; >>>>> Thanks for the answer! But I sometimes get > 2 rules >>>> that are correct, >>>>> and that is impossible. I embedded > Greg's >>>> DroolsTest class in my >>>>> class (I am doing some test on performance > and >>>> studying the >>>>> difference between performance with a > plain java >>>> class), and it >>>>> still doesn't work, and I really > don't see >>>> why. Anyone any >>>>> suggestions, in attachement, my class. >>>>> >>>>> Thx, >>>>> >>>>> Femke >>>>> >>>>> >>>>> >>>>> >>>>> Op 4-mei-09, om 02:47 heeft Greg Barton > het volgende >>>> geschreven: >>>>> >>>>> Try the attached code. >>>>> >>>>> --- On Sun, 5/3/09, Femke De Backere >>>> <femmyke(a)gmail.com&gt; wrote: >>>>> >>>>> From: Femke De Backere > <femmyke(a)gmail.com&gt; >>>>> Subject: Re: [rules-users] Rule problem >>>>> To: "Rules Users List" >>>> <rules-users(a)lists.jboss.org&gt; >>>>> Date: Sunday, May 3, 2009, 6:18 PM >>>>> Thx for the answer. I tried this but I > doesn't >>>> seem to >>>>> work. For a BMI of 20, i get the result >>>>> "ondergewicht", and it should be >>>>> "normal". >>>>> >>>>> Op 4-mei-09, om 01:04 heeft Ingomar Otter > het volgende >>>>> geschreven: >>>>> >>>>> Femke, >>>>> The "Overgewicht| rule matches for > _two_ BMIClass >>>>> facts, one with bmi >- 25 and one for > BMIClass >>>> <30. >>>>> If you want to apply multiple constraints > to a single >>>>> fact you have to list them as such: >>>>> >>>>> rule "Overgewicht" >>>>> when >>>>> bmiClass : BMIClass(bmi >> = 25 >>>> && bmi >>>>> <30) >>>>> then >>>>> System.out.println("U > heeft >>>>> overgewicht"); >>>>> end >>>>> >>>>> >>>>> Cheers, >>>>> Ingomar >>>>> >>>>> >>>>> Am 04.05.2009 um 00:48 schrieb Femke De > Backere: >>>>> >>>>> Hi! >>>>> >>>>> I want to make en BMI rule application, so > I need >>>>> to test the BMI values. But in rule >>>> "Overgewicht" >>>>> and "Normaal", I need to use an > AND, but it >>>>> doesn't seem to work in any way I > tried. >>>>> >>>>> Does anybody see the problem? The rest of > the >>>>> application is based on de sample project > (created >>>> when >>>>> making a new Drools project). >>>>> >>>>> Thx, >>>>> >>>>> Femke >>>>> >>>>> package bmi >>>>> >>>>> import bmi.DroolsTest.BMIClass; >>>>> >>>>> rule "Overgewicht" >>>>> when >>>>> bmiClass : BMIClass(bmi >> = 25) >>>>> bmiClass : BMIClass(bmi < > 30) >>>>> then >>>>> System.out.println("U > heeft >>>>> overgewicht"); >>>>> end >>>>> >>>>> rule "Obesitas" >>>>> when >>>>> bmiClass : BMIClass($bmi : > bmi >= >>>> 30) >>>>> then >>>>> System.out.println("U > heeft >>>>> obesitas"); >>>>> end >>>>> >>>>> rule "Ondergewicht" >>>>> when >>>>> bmiClass : BMIClass($bmi : > bmi < >>>> 18.5) >>>>> then >>>>> System.out.println("U > heeft >>>>> ondergewicht"); >>>>> end >>>>> >>>>> rule "Normaal" >>>>> when >>>>> bmiClass : BMIClass(bmi >> = 18.5) >>>>> bmiClass : BMIClass(bmi < > 25) >>>>> then >>>>> System.out.println("U > heeft een >>>> normaal >>>>> gewicht"); >>>>> >>>>> end >>>> > _______________________________________________ >>>>> rules-users mailing list >>>>> rules-users(a)lists.jboss.org >>>>> >>>>> > https://lists.jboss.org/mailman/listinfo/rules-users >>>>> >>>>> > _______________________________________________ >>>>> rules-users mailing list >>>>> rules-users(a)lists.jboss.org >>>>> > https://lists.jboss.org/mailman/listinfo/rules-users >>>>> >>>>> > _______________________________________________ >>>>> rules-users mailing list >>>>> rules-users(a)lists.jboss.org >>>>> > https://lists.jboss.org/mailman/listinfo/rules-users >>>>> >>>>> >>>>> < >>>>> DroolsTest >>>>> >>>> > .java><Sample.drl>_______________________________________________ >>>>> rules-users mailing list >>>>> rules-users(a)lists.jboss.org >>>>> > https://lists.jboss.org/mailman/listinfo/rules-users >>>>> >>>>> >>>>> > _______________________________________________ >>>>> rules-users mailing list >>>>> rules-users(a)lists.jboss.org >>>>> > https://lists.jboss.org/mailman/listinfo/rules-users >>>>> >>>>> >>>>> > _______________________________________________ >>>>> rules-users mailing list >>>>> rules-users(a)lists.jboss.org >>>>> > https://lists.jboss.org/mailman/listinfo/rules-users >>>> >>>> > _______________________________________________ >>>> rules-users mailing list >>>> rules-users(a)lists.jboss.org >>>> > https://lists.jboss.org/mailman/listinfo/rules-users >>> >>> >>> >>> _______________________________________________ >>> rules-users mailing list >>> rules-users(a)lists.jboss.org >>> > https://lists.jboss.org/mailman/listinfo/rules-users >> >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users >> >> >> _______________________________________________ >> rules-users mailing list >> rules-users(a)lists.jboss.org >> https://lists.jboss.org/mailman/listinfo/rules-users > > _______________________________________________ > rules-users mailing list > rules-users(a)lists.jboss.org > https://lists.jboss.org/mailman/listinfo/rules-users _______________________________________________ rules-users mailing list rules-users(a)lists.jboss.org https://lists.jboss.org/mailman/listinfo/rules-users