pyspark.RDD.variance#

RDD.variance()[source]#

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...