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https://issues.apache.org/jira/browse/MADLIB-946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15113345#comment-15113345
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Orhan Kislal commented on MADLIB-946:
-------------------------------------
Changed the closest column to return Null(). Changed kmeans to accomodate for
null value. Details can be found in the pull request #13.
> Null handling in kmeans
> -----------------------
>
> Key: MADLIB-946
> URL: https://issues.apache.org/jira/browse/MADLIB-946
> Project: Apache MADlib
> Issue Type: Bug
> Components: Module: k-Means Clustering
> Reporter: Frank McQuillan
> Priority: Minor
> Fix For: v1.9
>
>
> Opened for Yaw Tan:
> I'm using the Madlib k-means CLOSEST COLUMN function to determine the Cluster
> ID for the data point
> The error says
> Function:madlib.closest_column(double precision, double precision, regproc,
> text): Error converting an array w/ NULL values to dense format
> The fix is to ignore NULL values in the array.
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