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https://issues.apache.org/jira/browse/MATH-959?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13655560#comment-13655560
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Thomas Neidhart commented on MATH-959:
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One important question would be if we should return the result in a top-down
(the root node in the dendrogram), or bottom-up (the leafs of the dendrogram)
manner.
Right now, I decided to return them top-down. Each Hierarchical cluster has two
child nodes. So you can traverse the dendrogram like this.
> Add HAC clustering algorithm
> ----------------------------
>
> Key: MATH-959
> URL: https://issues.apache.org/jira/browse/MATH-959
> Project: Commons Math
> Issue Type: Sub-task
> Reporter: Thomas Neidhart
> Fix For: 4.0
>
> Attachments: MATH-748.zip
>
>
> Add at least one hierarchical clustering algorithm.
> With the refactoring of the clustering package, this should now be feasible
> as the Cluster class can be extended.
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