pyspark.RDD.max

RDD.max(key: Optional[Callable[[T], S]] = None) → T

Find the maximum item in this RDD.

Parameters

keyfunction, optional

A function used to generate key for comparing

Examples

>>> rdd = sc.parallelize([1.0, 5.0, 43.0, 10.0])
>>> rdd.max()
43.0
>>> rdd.max(key=str)
5.0

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