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https://issues.apache.org/jira/browse/SPARK-19734?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Yanbo Liang resolved SPARK-19734.
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Resolution: Fixed
Assignee: Mark Grover
Fix Version/s: 2.2.0
> OneHotEncoder __init__ uses dropLast but doc strings all say includeFirst
> -------------------------------------------------------------------------
>
> Key: SPARK-19734
> URL: https://issues.apache.org/jira/browse/SPARK-19734
> Project: Spark
> Issue Type: Documentation
> Components: PySpark
> Affects Versions: 1.5.2, 1.6.3, 2.0.2, 2.1.0
> Reporter: Corey
> Assignee: Mark Grover
> Priority: Minor
> Labels: documentation, easyfix
> Fix For: 2.2.0
>
>
> The {{OneHotEncoder.__init__}} doc string in PySpark has an input keyword
> listed as {{includeFirst}}, whereas the code actually uses {{dropLast}}.
> This especially confusing because the {{__init__}} function accepts only
> keywords, and following the documentation on the web
> (https://spark.apache.org/docs/2.0.1/api/python/pyspark.ml.html#pyspark.ml.feature.OneHotEncoder)
> or of {{help}} in Python will result in the error:
> {quote}
> TypeError: __init__() got an unexpected keyword argument 'includeFirst'
> {quote}
> The error is immediately viewable in the source code:
> {code}
> @keyword_only
> def __init__(self, dropLast=True, inputCol=None, outputCol=None):
> """
> __init__(self, includeFirst=True, inputCol=None, outputCol=None)
> """
> {code}
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