Re: Use of Gini index in J48

That's correct. Note that he core CART algorithm is available in the WEKA package simpleCART.

The corresponding code is at

  https://git.cms.waikato.ac.nz/weka/weka/-/blob/main/trunk/packages/internal/simpleCART/src/main/java/weka/classifiers/trees/SimpleCart.java

Cheers,
Eibe

> On 27/07/2023, at 1:05 AM, Vinh Nguyen <[email protected]> wrote:
> 
> The Gini index is used to measure impurity in the CART learning algorithm. I don't think J48 supports that.
> _______________________________________________
> Wekalist mailing list -- [email protected]
> Send posts to [email protected]
> To unsubscribe send an email to [email protected]
> To subscribe, unsubscribe, etc., visit https://list.waikato.ac.nz/postorius/lists/wekalist.list.waikato.ac.nz
> List etiquette: http://www.cs.waikato.ac.nz/~ml/weka/mailinglist_etiquette.html

_______________________________________________
Wekalist mailing list -- [email protected]
Send posts to [email protected]
To unsubscribe send an email to [email protected]
To subscribe, unsubscribe, etc., visit https://list.waikato.ac.nz/postorius/lists/wekalist.list.waikato.ac.nz
List etiquette: http://www.cs.waikato.ac.nz/~ml/weka/mailinglist_etiquette.html