Compute the variance of this RDD’s elements
# variance()
m = sc.parallelize([1, 2, 3]).variance()
# 0.666...Compute the variance of this RDD’s elements
# variance()
m = sc.parallelize([1, 2, 3]).variance()
# 0.666...Compute the mean of this RDD’s elements.
sc.parallelize([1, 2, 3]).mean()
# 2.0Copyright © 2021 Codeinu
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