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https://issues.apache.org/jira/browse/SPARK-19453?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Maciej Szymkiewicz updated SPARK-19453:
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Summary: Correct DataFrame.replace docs (was: Correct Column.replace docs)
> Correct DataFrame.replace docs
> ------------------------------
>
> Key: SPARK-19453
> URL: https://issues.apache.org/jira/browse/SPARK-19453
> Project: Spark
> Issue Type: Improvement
> Components: Documentation, PySpark, SQL
> Affects Versions: 1.5.0, 1.6.0, 2.0.0, 2.1.0, 2.2.0
> Reporter: Maciej Szymkiewicz
>
> Current docstring provides incorrect description of {{to_replace}} argument:
> {quote}
> If the value is a dict, then `value` is ignored and `to_replace` must be a
> mapping from column name (string) to replacement value.
> {quote}
> It looks like it has been copied from `na.fill` docs. In fact {{dict}} should
> provide mapping from value to replacement value.
> Moreover docs fail to explain some fundamental limitations (like lack of
> support for heterogeneous values) and some usage scenarios.
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