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https://issues.apache.org/jira/browse/SPARK-31185?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Huaxin Gao updated SPARK-31185:
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Issue Type: New Feature (was: Bug)
> implement VarianceThresholdSelector
> -----------------------------------
>
> Key: SPARK-31185
> URL: https://issues.apache.org/jira/browse/SPARK-31185
> Project: Spark
> Issue Type: New Feature
> Components: ML
> Affects Versions: 3.1.0
> Reporter: Huaxin Gao
> Assignee: Huaxin Gao
> Priority: Major
> Fix For: 3.1.0
>
>
> Implement a Feature selector that removes all low-variance features. Features
> with a
> variance lower than the threshold will be removed. The default is to keep
> all features with non-zero variance, i.e. remove the features that have the
> same value in all samples.
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