var_samp

Returns the unbiased sample variance of the values in a group.

Syntax

from pyspark.sql import functions as sf

sf.var_samp(col)

Parameters

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

Returns

pyspark.sql.Column: variance of given column.

Examples

from pyspark.sql import functions as sf
df = spark.range(6)
df.select(sf.var_samp(df.id)).show()

+------------+
|var_samp(id)|
+------------+
|         3.5|
+------------+