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Posted to issues@spark.apache.org by "Barry Becker (JIRA)" <ji...@apache.org> on 2018/02/19 14:46:00 UTC

[jira] [Commented] (SPARK-8529) Set metadata for MinMaxScaler

    [ https://issues.apache.org/jira/browse/SPARK-8529?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16369194#comment-16369194 ] 

Barry Becker commented on SPARK-8529:
-------------------------------------

Complementing the output metadata in what way? Need more info about what needs to be set. Is this still an issue? It's been open for almost 3 years.

From a fit MinMaxScalarModel can I get the originalMin and originalMax values?

Not sure what this comment in the code (on master) means:
|/**|
| | * Model fitted by [[MinMaxScaler]].|
| | *|
| | * @param originalMin min value for each original column during fitting|
| | * @param originalMax max value for each original column during fitting|
| | *|
| | * TODO: The transformer does not yet set the metadata in the output column (SPARK-8529).|
| | */|

> Set metadata for MinMaxScaler
> -----------------------------
>
>                 Key: SPARK-8529
>                 URL: https://issues.apache.org/jira/browse/SPARK-8529
>             Project: Spark
>          Issue Type: Improvement
>          Components: ML
>            Reporter: yuhao yang
>            Priority: Minor
>
> Add this as an reminder for complementing the output metadata for transformer MinMaxScaler.



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