[
https://issues.apache.org/jira/browse/HIVEMALL-253?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16828995#comment-16828995
]
Aaron Wong commented on HIVEMALL-253:
-------------------------------------
[https://github.com/apache/incubator-hivemall/pull/192]
This is the pull request.
> UDF map_roulette() created
> --------------------------
>
> Key: HIVEMALL-253
> URL: https://issues.apache.org/jira/browse/HIVEMALL-253
> Project: Hivemall
> Issue Type: New Feature
> Affects Versions: 0.6.0
> Reporter: Aaron Wong
> Priority: Major
>
> In data processing process, we usually encounter the problem that we have
> some selection and their probably(or weight), we should select one of them
> according to their probably(or weight).
> UDF map_roulette() is a implement of roulette. It can select a Key from a map
> according to key's weight value.
--
This message was sent by Atlassian JIRA
(v7.6.3#76005)
