stddev

Alias for stddev_samp.

Syntax

Python

from pyspark.sql import functions as sf

sf.stddev(col)

Parameters

Parameter	Type	Description
col	pyspark.sql.Column or column name	Target column to compute on.

Parameter	Type	Description
col	pyspark.sql.Column or column name	Target column to compute on.

Returns

pyspark.sql.Column: standard deviation of given column.

Examples

Python

import pyspark.sql.functions as sf
spark.range(6).select(sf.stddev("id")).show()

Output

+------------------+
|        stddev(id)|
+------------------+
|1.8708286933869...|
+------------------+