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https://issues.apache.org/jira/browse/SPARK-22440?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16238095#comment-16238095
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Marco Gaido commented on SPARK-22440:
-------------------------------------

I am preparing an implementation for this. It will stil take some time. At soon 
as it will be ready, I'll submit a PR.

> Add Calinski-Harabasz index to ClusteringEvaluator
> --------------------------------------------------
>
>                 Key: SPARK-22440
>                 URL: https://issues.apache.org/jira/browse/SPARK-22440
>             Project: Spark
>          Issue Type: New Feature
>          Components: ML
>    Affects Versions: 2.3.0
>            Reporter: Marco Gaido
>            Priority: Minor
>
> In SPARK-14516 we introduced ClusteringEvaluator with an implementation of 
> Silhouette.
> sklearn contains also another metric for the evaluation of unsupervised 
> clustering results. The metric is Calinski-Harabasz. This JIRA is to add it 
> to Spark.



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