[SPARK-29566] Imputer should support single-column input/ouput

• Type: New Feature
• Status: Resolved
• Priority: Minor
• Resolution: Fixed
• Affects Version/s: 3.0.0
• Fix Version/s: 3.0.0
• Component/s: ML, PySpark
• Assignee: Huaxin Gao
• Reporter: Ruifeng Zheng
• Created: 23/Oct/19 08:35
• Updated: 16/Jan/20 11:54
• Resolved: 29/Oct/19 03:12

Description

Imputer should support single-column input/ouput

refer to https://issues.apache.org/jira/browse/SPARK-29565

Issue Links

• links to: GitHub Pull Request #26247
• links to: GitHub Pull Request #27195