Li Jin created SPARK-22274:
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Summary: Used-defined aggregation functions with pandas udf
Key: SPARK-22274
URL: https://issues.apache.org/jira/browse/SPARK-22274
Project: Spark
Issue Type: Sub-task
Components: PySpark
Affects Versions: 2.2.0
Reporter: Li Jin
{code:java}
@pandas_udf(DoubleType())
def mean(v)
return v.mean()
df.groupby('id').apply(mean(df.v1), mean(df.v2))
{code}
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