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Posted to issues@spark.apache.org by "Sean R. Owen (Jira)" <ji...@apache.org> on 2020/08/25 16:29:00 UTC

[jira] [Updated] (SPARK-32699) Add percentage of missingness to df.summary()

     [ https://issues.apache.org/jira/browse/SPARK-32699?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Sean R. Owen updated SPARK-32699:
---------------------------------
    Priority: Minor  (was: Major)

> Add percentage of missingness to df.summary()
> ---------------------------------------------
>
>                 Key: SPARK-32699
>                 URL: https://issues.apache.org/jira/browse/SPARK-32699
>             Project: Spark
>          Issue Type: New Feature
>          Components: ML
>    Affects Versions: 3.0.0
>            Reporter: Chengyin Eng
>            Priority: Minor
>
>  
> h2. In df.summary(), we are returned counts of non-nulls for each column. It would be really helpful to have a percentage of non-nulls, since percentage of missingness is often an indicator for data scientists to discard the columns.



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