Huaxin Gao created SPARK-29727:
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Summary: Use UnaryTransformer as parent class for single input
column transformers in PySpark
Key: SPARK-29727
URL: https://issues.apache.org/jira/browse/SPARK-29727
Project: Spark
Issue Type: Sub-task
Components: ML, PySpark
Affects Versions: 3.0.0
Reporter: Huaxin Gao
In Scala, UnaryTransformer is the parent class of all the single input column
transformers. In PySpark, we have the corresponding Python version of
UnaryTransformer but it's not really used. This Jira will make single input
column transformers in Python to use UnaryTransformer as parent class.
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