[jira] [Comment Edited] (SPARK-6160) ChiSqSelector should keep test statistic info

["Gayathri Murali (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/SPARK-6160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15173163#comment-15173163 ] 

Gayathri Murali edited comment on SPARK-6160 at 3/1/16 3:53 AM:
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[~josephkb] Should the test statistics result be stored as a text/parquet file? or Can it just be stored in a local array? 


was (Author: gayathrimurali):
[~josephkb] Should the test statistics result be stored as a text/parquet file? or Can it just be stored in a local array? 

> ChiSqSelector should keep test statistic info
> ---------------------------------------------
>
>                 Key: SPARK-6160
>                 URL: https://issues.apache.org/jira/browse/SPARK-6160
>             Project: Spark
>          Issue Type: Improvement
>          Components: MLlib
>    Affects Versions: 1.3.0
>            Reporter: Joseph K. Bradley
>            Priority: Minor
>
> It is useful to have the test statistics explaining selected features, but these data are thrown out when constructing the ChiSqSelectorModel.  The data are expensive to recompute, so the ChiSqSelectorModel should store and expose them.



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