pyspark.RDD.max#

RDD.max(key=None)[source]#

Find the maximum item in this RDD.

Added in version 1.0.0.

Parameters:
keyfunction, optional

A function used to generate key for comparing

Returns:
T

the maximum item

See also

RDD.min()

Examples

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