pyspark.sql.functions.stddev_pop

pyspark.sql.functions.stddev_pop(col: ColumnOrName) → pyspark.sql.column.Column

Aggregate function: returns population standard deviation of the expression in a group.

New in version 1.6.0.

Changed in version 3.4.0: Supports Spark Connect.

Parameters

colColumn or str

target column to compute on.

Returns

Column

standard deviation of given column.

Examples

>>> import pyspark.sql.functions as sf
>>> spark.range(6).select(sf.stddev_pop("id")).show()
+-----------------+
|   stddev_pop(id)|
+-----------------+
|1.707825127659...|
+-----------------+

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