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https://issues.apache.org/jira/browse/MADLIB-1101?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Frank McQuillan resolved MADLIB-1101.
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Resolution: Fixed
> Graph - weakly connected components helper functions
> ----------------------------------------------------
>
> Key: MADLIB-1101
> URL: https://issues.apache.org/jira/browse/MADLIB-1101
> Project: Apache MADlib
> Issue Type: New Feature
> Components: Module: Graph
> Reporter: Frank McQuillan
> Fix For: v1.12
>
>
> Context
> Follow on from
> https://issues.apache.org/jira/browse/MADLIB-1071
> Story
> As a data scientist, I want to use helper functions related to weakly
> connected components, so that I don't have to query the result table myself
> which is less efficient and subject to error.
> List of helper functions roughly in priority order:
> 1) biggest connected component
> 2) number of nodes per connected component (histogram)
> 3) whether two nodes belong to same or different connected components
> 4) count of connected cpt clusters
> 5) Set of all nodes which can be reached (have a path) from a specified vertex
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