pyspark.RDD.stdev

RDD.stdev() → float[source]

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...

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