pyspark.RDD.stdev

RDD.stdev() → float

Compute the standard deviation of this RDD’s elements.

New in version 0.9.1.

Returns

float

the standard deviation of all elements

See also

RDD.stats()

RDD.sampleStdev()

RDD.variance()

RDD.sampleVariance()

Examples

>>> sc.parallelize([1, 2, 3]).stdev()
0.816...

pyspark.RDD.stats pyspark.RDD.subtract