pyspark.RDD.variance

RDD.variance() → float

Compute the variance of this RDD’s elements.

New in version 0.9.1.

Returns

float

the variance of all elements

See also

RDD.stats()

RDD.sampleVariance()

RDD.stdev()

RDD.sampleStdev()

Examples

>>> sc.parallelize([1, 2, 3]).variance()
0.666...

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