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Posted to issues@spark.apache.org by "Apache Spark (JIRA)" <ji...@apache.org> on 2014/11/14 03:55:35 UTC

[jira] [Commented] (SPARK-4396) Support lookup by index in Rating

    [ https://issues.apache.org/jira/browse/SPARK-4396?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14211754#comment-14211754 ] 

Apache Spark commented on SPARK-4396:
-------------------------------------

User 'mengxr' has created a pull request for this issue:
https://github.com/apache/spark/pull/3261

> Support lookup by index in Rating
> ---------------------------------
>
>                 Key: SPARK-4396
>                 URL: https://issues.apache.org/jira/browse/SPARK-4396
>             Project: Spark
>          Issue Type: New Feature
>          Components: MLlib, PySpark
>            Reporter: Xiangrui Meng
>            Assignee: Xiangrui Meng
>
> In PySpark, ALS can take an RDD of (user, product, rating) tuples as input. However, model.predict outputs an RDD of Rating. So on the input side, users can use r[0], r[1], r[2], while on the output side, users have to use r.user, r.product, r.rating. We should allow lookup by index in Rating.



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