[
https://issues.apache.org/jira/browse/MADLIB-946?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15109311#comment-15109311
]
Orhan Kislal edited comment on MADLIB-946 at 1/20/16 8:13 PM:
--------------------------------------------------------------
I think it is possible to fix this with 2 changes. Update the closest column to
return null instead of throwing an exception and update the kmeans to handle
null as a valid CLUSTER ID. To the best of my knowledge, the exception in
closest column isn't used for anything specific.
was (Author: okislal):
I think it is possible to fix this with 2 changes. Update the closest column to
return null instead of throwing an exception and update the kmeans to handle
null as a valid centroid id. To the best of my knowledge, the exception in
closest column isn't used for anything specific.
> 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.
--
This message was sent by Atlassian JIRA
(v6.3.4#6332)
